WO2012008528A1 - ピラゾール化合物 - Google Patents
ピラゾール化合物 Download PDFInfo
- Publication number
- WO2012008528A1 WO2012008528A1 PCT/JP2011/066091 JP2011066091W WO2012008528A1 WO 2012008528 A1 WO2012008528 A1 WO 2012008528A1 JP 2011066091 W JP2011066091 W JP 2011066091W WO 2012008528 A1 WO2012008528 A1 WO 2012008528A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pyrazol
- oxy
- methylmethanamine
- group
- fluorobenzyl
- Prior art date
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- 0 CN[C@](C(*)(*)N(*)*)C=C(N)NC Chemical compound CN[C@](C(*)(*)N(*)*)C=C(N)NC 0.000 description 6
- BXLACDPADFPPMG-UHFFFAOYSA-N CC(C(C1)=NN(CC2CCCC2)C1=O)N(C)C(OC(C)(C)C)=O Chemical compound CC(C(C1)=NN(CC2CCCC2)C1=O)N(C)C(OC(C)(C)C)=O BXLACDPADFPPMG-UHFFFAOYSA-N 0.000 description 1
- VLHQXRIIQSTJCQ-UHFFFAOYSA-N CC(C(O)=O)N(C)C(OC(C)(C)C)=O Chemical compound CC(C(O)=O)N(C)C(OC(C)(C)C)=O VLHQXRIIQSTJCQ-UHFFFAOYSA-N 0.000 description 1
- GTMAEJJZWMKCIP-UHFFFAOYSA-N CC(C)(C)CCN1N=C(CN(C)C(OC(C)(C)C)=O)CC1=O Chemical compound CC(C)(C)CCN1N=C(CN(C)C(OC(C)(C)C)=O)CC1=O GTMAEJJZWMKCIP-UHFFFAOYSA-N 0.000 description 1
- DRWOEUQOFFPLQC-UHFFFAOYSA-N CC(C)(C)CCNN Chemical compound CC(C)(C)CCNN DRWOEUQOFFPLQC-UHFFFAOYSA-N 0.000 description 1
- VWUKHDCUTVCRMN-UHFFFAOYSA-N CC(C)(C)OC(N(C)CC(C1)=NN(CC2(CCCCC2)OC)C1=O)=O Chemical compound CC(C)(C)OC(N(C)CC(C1)=NN(CC2(CCCCC2)OC)C1=O)=O VWUKHDCUTVCRMN-UHFFFAOYSA-N 0.000 description 1
- UPKQEGSTOMDDMG-UHFFFAOYSA-N CC(C)(C)OC(N(C)CC(C1)=NN(CC2OC3CCC2CC3)C1=O)=O Chemical compound CC(C)(C)OC(N(C)CC(C1)=NN(CC2OC3CCC2CC3)C1=O)=O UPKQEGSTOMDDMG-UHFFFAOYSA-N 0.000 description 1
- LXVPCBNYRDUQOL-UHFFFAOYSA-N CC(C)(C)OC(N(C)Cc1n[n](CC2CCCCC2)c(OCc2cc(F)ccc2F)c1)=O Chemical compound CC(C)(C)OC(N(C)Cc1n[n](CC2CCCCC2)c(OCc2cc(F)ccc2F)c1)=O LXVPCBNYRDUQOL-UHFFFAOYSA-N 0.000 description 1
- HKLPSFQMCIVDOV-UHFFFAOYSA-N CC(C)(C)OC(N(C)Cc1n[n](CC2CCCCC2)c(OCc2cc(F)ccc2F)c1Cl)=O Chemical compound CC(C)(C)OC(N(C)Cc1n[n](CC2CCCCC2)c(OCc2cc(F)ccc2F)c1Cl)=O HKLPSFQMCIVDOV-UHFFFAOYSA-N 0.000 description 1
- IJYMZBYGWUMETK-UHFFFAOYSA-N CC(C)CC[n]1nc(CN)cc1OCc(c(F)c1)cc(F)c1F Chemical compound CC(C)CC[n]1nc(CN)cc1OCc(c(F)c1)cc(F)c1F IJYMZBYGWUMETK-UHFFFAOYSA-N 0.000 description 1
- SRMOZGUULKLGDB-UHFFFAOYSA-N CC(C1CCCC1)[n]1nc(CNC)cc1OCc1cc(Cl)ccc1 Chemical compound CC(C1CCCC1)[n]1nc(CNC)cc1OCc1cc(Cl)ccc1 SRMOZGUULKLGDB-UHFFFAOYSA-N 0.000 description 1
- AKKJHRZSNJWTAM-UHFFFAOYSA-N CC1CC(CNN)CCC1 Chemical compound CC1CC(CNN)CCC1 AKKJHRZSNJWTAM-UHFFFAOYSA-N 0.000 description 1
- IVZSDKPIHPABBM-UHFFFAOYSA-N CCC(CC)NN Chemical compound CCC(CC)NN IVZSDKPIHPABBM-UHFFFAOYSA-N 0.000 description 1
- FYRXMKPNBGMWAY-ALJQYSCYSA-N CCCN/C(/Oc1cc(Cl)cc(Cl)c1)=C(/CC)\C(CN)=N Chemical compound CCCN/C(/Oc1cc(Cl)cc(Cl)c1)=C(/CC)\C(CN)=N FYRXMKPNBGMWAY-ALJQYSCYSA-N 0.000 description 1
- MOMAAVKAEAOGCF-UHFFFAOYSA-N CNCc1n[n](CC2CCCCC2)c(OCc2cc(F)ccc2F)c1Cl Chemical compound CNCc1n[n](CC2CCCCC2)c(OCc2cc(F)ccc2F)c1Cl MOMAAVKAEAOGCF-UHFFFAOYSA-N 0.000 description 1
- LKQJIJOUCINGTB-UHFFFAOYSA-N CNCc1n[n](CC2Oc3ccccc3CC2)c(OCc2cc(Cl)ccc2)c1 Chemical compound CNCc1n[n](CC2Oc3ccccc3CC2)c(OCc2cc(Cl)ccc2)c1 LKQJIJOUCINGTB-UHFFFAOYSA-N 0.000 description 1
- TYWVTQSZDVHDEM-UHFFFAOYSA-N COC1(CCCC1)C(O)=O Chemical compound COC1(CCCC1)C(O)=O TYWVTQSZDVHDEM-UHFFFAOYSA-N 0.000 description 1
- ONGDVSSLQWMUOZ-UHFFFAOYSA-N COC1(CNN)CCCC1 Chemical compound COC1(CNN)CCCC1 ONGDVSSLQWMUOZ-UHFFFAOYSA-N 0.000 description 1
- CSAKQFWACRXURU-UHFFFAOYSA-N COC1(CO)CCCC1 Chemical compound COC1(CO)CCCC1 CSAKQFWACRXURU-UHFFFAOYSA-N 0.000 description 1
- XEIAQJJJRPKZQG-UHFFFAOYSA-N COC1(COS(C)(=O)=O)CCCC1 Chemical compound COC1(COS(C)(=O)=O)CCCC1 XEIAQJJJRPKZQG-UHFFFAOYSA-N 0.000 description 1
- FBFGFCAGFFHMPG-UHFFFAOYSA-N NNCC1CC1 Chemical compound NNCC1CC1 FBFGFCAGFFHMPG-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D231/18—One oxygen or sulfur atom
- C07D231/20—One oxygen atom attached in position 3 or 5
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- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/415—1,2-Diazoles
- A61K31/4152—1,2-Diazoles having oxo groups directly attached to the heterocyclic ring, e.g. antipyrine, phenylbutazone, sulfinpyrazone
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- A61P9/12—Antihypertensives
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D231/18—One oxygen or sulfur atom
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D231/18—One oxygen or sulfur atom
- C07D231/20—One oxygen atom attached in position 3 or 5
- C07D231/22—One oxygen atom attached in position 3 or 5 with aryl radicals attached to ring nitrogen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D231/38—Nitrogen atoms
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D231/44—Oxygen and nitrogen or sulfur and nitrogen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/06—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/08—Bridged systems
Definitions
- the present invention relates to a medicament containing a novel pyrazole derivative or a pharmaceutically acceptable salt thereof as an active ingredient. Specifically, the present invention relates to a therapeutic or relapse preventive for depression, anxiety and the like having 5-HT 2C antagonism, particularly 5-HT 2C reverse action, and serotonin reuptake inhibition.
- SSRI selective serotonin reuptake inhibitors
- SSRI has a serotonin reuptake inhibitory action higher than the dopamine and noradrenaline reuptake inhibitory action.
- Examples of SSRIs include fluvoxamine, citalopram, sertraline and paroxetine, which play a central role in drug treatment for depression.
- Such an SSRI has fewer side effects compared with a tricyclic antidepressant (hereinafter sometimes abbreviated as TCA), which is a classic antidepressant, and is widely used as a safer treatment for depression. Although used, it has been pointed out to have some problems. It takes a long period of 3 to 8 weeks to develop a sufficient antidepressant effect, especially in the early stages of SSRI administration, causing digestive system symptoms such as nausea, vomiting and diarrhea, and causing anxiety and irritation. The side effect called activation disorder (Activation Syndrome) such as worsening is manifested, the remission rate with SSRI monotherapy is about 1/3, and SSRI alone cannot raise sufficient therapeutic effect as problems It has been.
- TCA tricyclic antidepressant
- SSRI has a slow and insufficient onset of antidepressant action, while its side effects occur immediately and often adversely affect medication compliance at the initial administration.
- the slow onset of antidepressant action also raises the problem of increasing the risk of suicide at the beginning of administration because it recovers its initiative before experiencing sufficient improvement in depressive symptoms. Therefore, it is desired to develop an antidepressant that exhibits rapid antidepressant action and exhibits a strong antidepressant action.
- serotonin 2C (hereinafter sometimes abbreviated as 5-HT 2C ) ligand affects serotonin and dopamine release in the rat cerebral cortex (for example, Neuropsychopharmacology, (2004), 29, 1782-1789 (5-HT), Synapse, (2000), 36, 205-221 (DA)).
- 5-HT 2C neuropsychopharmacology
- DA DA
- GABA gamma-aminobutyric acid
- 5-HT 2C receptor is expressed, and when this receptor is stimulated, GABA release is promoted, and as a result, serotonin and dopamine neurons are suppressed.
- antagonizing the 5-HT 2C receptor suppresses GABA release in the primary nucleus and promotes the release of monoamines such as serotonin and dopamine in the prefrontal cortex and hippocampus where each neuron is projected. It is done.
- a compound having reverse action on 5-HT 2C receptor has a stronger monoamine release promoting action than a compound having only an antagonistic action (for example, The Journal of Neuroscience, ( 2004), 24, 3235-3241).
- SSRIs are also useful as anxiolytics, but as with the treatment of depression, the problem is that several weeks of administration are required to develop therapeutic effects.
- 5-HT 2C antagonists and inverse agonists have also been reported to exhibit anti-anxiety-like action in various anxiety model animals (for example, British Journal of Pharmacology, (1996), 117, 427-434, European Journal). of Pharmacology, (2006) 553, 171-184), a compound having both serotonin reuptake inhibitory action and 5-HT 2C antagonistic action and reverse action action can be expected to have a strong anxiolytic activity.
- depression the proportion of depressed patients with anxiety symptoms is high, and depression with anxiety symptoms is prone to prolongation of symptoms, and resistance to treatment by SSRI is known ( For example, Psychological Medicine, (2004), 34, 1299-1308). Therefore, an antidepressant having a strong anti-anxiety action is considered to be very useful in the treatment of depression.
- 5-HT 2C antagonism especially 5-HT 2C compound having an inverse agonism
- 5-HT 2C antagonism Indirect increase in dopamine release due to action can simultaneously activate serotonin neurons and dopamine neurons, resulting in a short period of onset of action, strong antidepressant and anxiolytic effects, and widespread depression It is thought that it can become a new antidepressant effective for patients, and development of such a compound as a drug is desired.
- 2007/0105843 includes a combination of a drug having serotonin reuptake inhibitory activity and a drug having 5-HT 2C antagonistic activity, and anti-antibacterial properties of compounds having both serotonin reuptake inhibitory activity and 5-HT 2C antagonistic activity.
- a depressant or anxiolytic agent is described, there is no specific disclosure of a compound having both serotonin reuptake inhibitory activity and 5-HT 2C antagonistic action, particularly 5-HT 2C reverse action.
- Patent Documents 1 to 5 For compounds having an aminomethyl group at the 3-position of the pyrazole ring, for example, documents such as Patent Documents 1 to 5 described below have been reported.
- Patent Document 1 specifically discloses, for example, a 3-aminomethylpyrazole derivative represented by the following formula P-1, in which the 1-position substituent on the pyrazole ring is an isopropyl group, The 5-position substituent is structurally different from the compound of the present invention because it is a substituted phenoxy group.
- the patent document relates to an HIV reverse transcriptase inhibitor, and does not describe or suggest any serotonin reuptake action, 5-HT 2C antagonism and 5-HT 2C reverse action.
- Patent Document 2 specifically discloses, for example, a 3-aminomethylpyrazole derivative represented by the following formula P-2, in which the 1-position substituent on the pyrazole ring is an isopropyl group, Since the 4-position substituent is a pyridylmethyl group and the 5-position substituent is a substituted phenylthio group, it is structurally different from the compound of the present invention.
- the patent document relates to an HIV reverse transcriptase inhibitor, and does not describe or suggest any serotonin reuptake action, 5-HT 2C antagonism and 5-HT 2C reverse action.
- Patent Document 3 specifically discloses, for example, a 3-aminomethylpyrazole derivative represented by the following formula P-3, in which the 1-position substituent on the pyrazole ring is a cyclopropyl group.
- the 5-position substituent is structurally different from the compound of the present invention because it is a substituted phenyl group.
- the patent document relates to a nociceptin inhibitor, and does not describe or suggest any serotonin reuptake action, 5-HT 2C antagonist action and 5-HT 2C reverse action action.
- Patent Document 4 specifically discloses, for example, a 3-aminomethylpyrazole derivative represented by the following formula P-4, in which the 5-position substituent on the pyrazole ring is substituted with substituted phenyl. Since it is a group, it is structurally different from the compound of the present invention. In addition, the compound is described as a synthetic intermediate, and there is no description or suggestion regarding serotonin reuptake, 5-HT 2C antagonism and 5-HT 2C reverse action.
- Patent Document 5 and Patent Document 6 specifically disclose, for example, a 3-piperazinylmethylpyrazole derivative represented by the following formula P-5, and the compound has a 1-position substituent on the pyrazole ring. Is a biphenyl group and is a structurally different from the compound of the present invention because it is a substituted phenyl group at the 5-position substituent. Patent Document 6 describes that the compound has both 5-HT 2C antagonism and 5-HT 2A antagonism, but does not describe or suggest any serotonin reuptake action. .
- the problem to be solved by the present invention is a new serotonin having a 5-HT 2C antagonistic action, particularly a 5-HT 2C reverse action action, which is useful as a therapeutic agent for depression or anxiety (anxiety disorder) or a preventive agent for recurrence. It is to provide a reuptake inhibitor.
- a compound having a pyrazole skeleton or a pharmaceutically acceptable salt thereof has a 5-HT 2C antagonistic action, particularly a 5-HT 2C reverse action action and a serotonin reactivation action.
- the present invention was completed by discovering that it has uptake inhibitory activity and is useful as a therapeutic agent for depression and anxiety or as a preventive agent for recurrence. That is, the present invention is as follows.
- R 1 and R 2 independently of one another represent a hydrogen atom, a C 1-6 alkyl group or a C 3-8 cycloalkyl group
- R 3 and R 4 each independently represent a hydrogen atom or a C 1-6 alkyl group
- R 5 represents an optionally substituted C 4-7 alkyl group or — (CR 8 R 9 ) r —E
- R 6 , R 7 , R 8 and R 9 each independently represent a hydrogen atom, a fluorine atom or an optionally substituted C 1-6 alkyl group
- A represents an optionally substituted C 6-10 aryl group or an optionally substituted 5- to 10-membered heteroaryl group
- r represents 1, 2, 3 or 4
- E represents an optionally substituted C 3-8 cycloalkyl group, an optionally substituted C 4-8 cycloalkenyl group, an optionally substituted 5- to 10-membered saturated heterocyclic group (the saturated heterocyclic ring);
- the group includes 1 to 3
- a medicament comprising the compound according to any of [1] to [13] above or a pharmaceutically acceptable salt thereof as an active ingredient; [15] The medicament according to the above [14], which is a therapeutic agent for depression or anxiety or a preventive agent for recurrence; [16] A serotonin reuptake inhibitor comprising the compound according to any one of [1] to [13] above or a pharmaceutically acceptable salt thereof as an active ingredient; [17] A pharmaceutical composition comprising the compound according to any one of [1] to [13] above or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier.
- a serotonin reuptake inhibitor having a 5-HT 2C antagonistic action, particularly a 5-HT 2C reverse action action, containing a pyrazole derivative or a pharmaceutically acceptable salt thereof as an active ingredient.
- the serotonin reuptake inhibitor of the present invention has an antidepressant action and an anxiolytic action, and is useful as a therapeutic or relapse preventive for depression or anxiety.
- C 1-6 has 1 to 6 carbon atoms
- C 1-4 has 1 to 4 carbon atoms
- C 6 represents 6 carbon atoms. .
- halogen atom there can be mentioned a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
- C 1-6 alkyl group means a straight or branched saturated aliphatic hydrocarbon group having 1 to 6 carbon atoms, specifically, a methyl group, an ethyl group, a propyl group, n-butyl, n-pentyl, n-hexyl, isopropyl, sec-butyl, isobutyl, tert-butyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 1-ethylpropyl Groups and the like.
- Preferred C 1-6 alkyl groups include C 1-4 alkyl groups, more preferably C 1-3 alkyl groups.
- the “C 4-7 alkyl group” means a linear or branched saturated aliphatic hydrocarbon group having 4 to 7 carbon atoms, specifically, an n-butyl group, an n-pentyl group.
- Preferred C 4-7 alkyl groups include C 4-6 alkyl groups. Specific examples include isobutyl group, 2,2-dimethylpropyl group, 3-methylbutyl group, 3,3-dimethylbutyl group, and 2-ethylbutyl group.
- the “C 6-10 aryl group” means a monocyclic or bicyclic aromatic hydrocarbon ring group having 6 to 10 carbon atoms, and preferably includes a C 6 or C 10 aryl group. Specific examples include a phenyl group, 1- or 2-naphthyl group, and the like.
- “5- to 10-membered heteroaryl group” means a 5- to 10-membered monocyclic or bicyclic ring containing 1 to 3 heteroatoms independently selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom (The position of the hetero atom on the ring of the heteroaryl group and the bonding position thereof are not particularly limited as long as they are chemically stable.), Specifically, a furyl group, a thienyl group, Pyrrolyl group, oxazolyl group, isoxazolyl group, thiazolyl group, isothiazolyl group, imidazolyl group, pyrazolyl group, furazanyl group, oxadiazolyl group, triazolyl group, tetrazolyl group, pyridyl group, pyrimidinyl group, pyridazinyl group, pyrazinyl group, indolyl group, quinolyl group , Isoquino
- Preferred heteroaryl groups include 5- or 6-membered monocyclic heteroaryl groups or 9- or 10-membered bicyclic heteroaryl groups. N-oxides in which the nitrogen atom on the heteroaryl group is oxidized are also included in the heteroaryl group.
- the C 6-10 aryl group and the 5- to 10-membered heteroaryl group form a condensed ring with C 3-8 cycloalkyl, C 4-8 cycloalkenyl, or a 5- to 10-membered saturated heterocycle. Also good.
- Specific examples of the condensed C 6-10 aryl group in this case include the following formulas: (In the formula, the bonding position on the benzene ring is not particularly limited as long as it is chemically stable).
- Specific examples of the condensed 5- to 10-membered heteroaryl group include: (Wherein the bonding position on the pyridine ring is not particularly limited as long as it is chemically stable).
- the condensed ring may have the following substituents exemplified as the substituent of each ring forming the condensed ring.
- C 3-8 cycloalkyl group means a monocyclic or bicyclic saturated aliphatic hydrocarbon ring group having 3 to 8 carbon atoms, and specifically includes a cyclopropyl group, a cyclobutyl group, a cyclopentyl group. Cyclohexyl group, cycloheptyl group, cyclooctyl group, bicyclo [2,2,1] heptyl group, bicyclo [3,2,0] heptyl group, and the like. Preferred C 3-8 cycloalkyl groups include monocyclic C 3-6 cycloalkyl groups.
- the “C 4-8 cycloalkenyl group” means a monocyclic or bicyclic unsaturated aliphatic hydrocarbon ring group having 4 to 8 carbon atoms having 1 or 2 double bonds, specifically Includes a cyclobutenyl group, a cyclopentenyl group, a cyclohexenyl group, and a cycloheptenyl group.
- the position of the double bond on the ring is not particularly limited.
- Preferred cycloalkenyl groups include C 5 or C 6 cycloalkenyl groups.
- “5- to 10-membered saturated heterocyclic group (the saturated heterocyclic group includes 1 to 3 heteroatoms independently selected from the group consisting of an oxygen atom and a sulfur atom as a ring-constituting atom) "Means a 5- to 10-membered monocyclic or bicyclic saturated aliphatic heterocyclic group containing 1 to 3 heteroatoms independently selected from the group consisting of an oxygen atom and a sulfur atom.
- the position of the hetero atom on the ring and the bonding position are not particularly limited as long as they are chemically stable.
- Preferred saturated heterocyclic groups include 5- to 8-membered saturated heterocyclic groups, more preferably 5- or 6-membered saturated heterocyclic groups.
- the 5- to 10-membered saturated heterocyclic group include tetrahydrofuryl group, tetrahydro-2H-pyranyl group, 1,4-dioxanyl group, tetrahydrothienyl group, tetrahydro-2H-thiopyranyl, and (A bond position on the ring is not particularly limited as long as it is chemically stable.)
- the 5- to 10-membered saturated heterocyclic group is more preferably a saturated heterocyclic group containing 1 or 2 oxygen atoms in the ring, such as a tetrahydrofuryl group, a tetrahydro-2H-pyranyl group, or a 1,4-dioxanyl group. 7-oxabicyclo [2,2,1] heptyl group and 2-oxabicyclo [2,2,2] octyl group.
- the C 3-8 cycloalkyl group, C 4-8 cycloalkenyl group and the 5- to 10-membered saturated heterocyclic group may form a condensed ring with C 6-10 aryl or 5- to 10-membered heteroaryl.
- Specific examples of the condensed ring include the following formulas: ( Wherein the bond position in the C 3-8 cycloalkyl group, C 4-8 cycloalkenyl group and 5- to 10-membered saturated heterocyclic group is chemically stable) Not limited.)
- the condensed ring may have the following substituents exemplified as the substituent of each ring forming the condensed ring.
- Examples of the substituent in the “ optionally substituted C 6-10 aryl group” and the “ optionally substituted 5- to 10-membered heteroaryl group” include, for example, a halogen atom or a fluorine atom.
- Good C 1-6 alkyl group, C 1-6 alkyloxy group optionally substituted with a fluorine atom, hydroxyl group, C 1-6 alkylthio group, C 6-10 aryloxy group, C 6-10 arylthio group, cyano Group, —CO 2 R 11 , —SO 2 R 11 , —NR 10 SO 2 R 11 , —OSO 2 R 11 , —COR 12 , —SO 2 NR 12 R 13 , —CONR 12 R 13 , —NR 12 R 13, -NR 10 CONR 12 R 13 , -NR 10 COR 12, -CR 12 N (OR 11) -, oxime groups, C 3-8 cycloalkyl groups, C -10 aryl group, such as
- substituents include a halogen atom, a C 1-6 alkyl group which may be substituted with a fluorine atom, a C 1-6 alkyloxy group which may be substituted with a fluorine atom, a hydroxyl group, a C 1-6 alkylthio group,
- a cyano group, and more preferable substituents are a fluorine atom, a chlorine atom, a bromine atom, a methyl group, an ethyl group, an isopropyl group, a trifluoromethyl group, a methoxy group, an ethoxy group, an isopropoxy group, a trifluoromethoxy group, Examples thereof include a difluoromethoxy group and a cyano group. These substituents may be substituted by 1 or the same or different two or more at any substitutable position.
- substituents in the “ optionally substituted C 1-6 alkyl group” and the “optionally substituted C 4-7 alkyl group” include a fluorine atom, a hydroxyl group, and a fluorine atom. A good C 1-6 alkyloxy group is mentioned. These substituents may be substituted by 1 or the same or different two or more at any substitutable position.
- substituents include a fluorine atom, a C 1-6 alkyl group which may be substituted with a fluorine atom, a hydroxyl group, and a C 1-6 alkyloxy group which may be substituted with a fluorine atom. These substituents may be substituted by 1 or the same or different two or more at any substitutable position.
- C 1-6 alkyloxy group means an oxy group substituted with the above “C 1-6 alkyl group”, and specifically includes a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, 1 -Methylethoxy group, n-butoxy group, sec-butoxy group, tert-butoxy group, 1-methylpropoxy group, 2-methylpropoxy group, 1,1-dimethylethoxy group, pentyloxy group, hexyloxy group .
- Preferable C 1-6 alkyloxy groups include C 1-4 alkyloxy groups, and examples thereof include a methoxy group, an ethoxy group, and an isopropoxy group.
- C 1-6 alkylthio group means a thio group substituted with the above “C 1-6 alkyl group”, for example, a methylthio group, an ethylthio group, a propylthio group, a 1-methylethylthio group, a butylthio group. 1-methylpropylthio group, 2-methylpropylthio group, 1,1-dimethylethylthio group, pentylthio group, and hexylthio group.
- Preferred C 1-6 alkylthio groups include C 1-4 alkylthio groups.
- Examples of “—CONR 12 R 13 ” include a carbamoyl group, a methylcarbamoyl group, an ethylcarbamoyl group, a propylcarbamoyl group, an isopropylcarbamoyl group, a dimethylcarbamoyl group, a diethylcarbamoyl group, and a methylethylcarbamoyl group.
- Examples of “—CO 2 R 11 ” include a methoxycarbonyl group, an ethoxycarbonyl group, a propoxycarbonyl group, a butoxycarbonyl group, and a tert-butoxycarbonyl group.
- Examples of “—COR 12 ” include acetyl group, propionyl group, butyryl group, isobutyryl group, valeryl group, isovaleryl group, pivaloyl group, pentanoyl group, isopentanoyl group, neopentanoyl group and hexanoyl group.
- Examples of “—SO 2 R 11 ” include a methylsulfonyl group, an ethylsulfonyl group, a propylsulfonyl group, a butylsulfonyl group, and a tert-butylsulfonyl group.
- Examples of “—NR 10 SO 2 R 11 ” include a methylsulfonylamide group, an ethylsulfonylamide group, a propylsulfonylamide group, a butylsulfonylamide group, and a tert-butylsulfonylamide group.
- Examples of “—NR 10 CONR 12 R 13 ” include a methylureido group, an ethylureido group, and a propylureido group.
- Examples of “—NR 12 R 13 ” include an amino group, a methylamino group, an ethylamino group, a propylamino group, a dimethylamino group, a diethylamino group, and a methylethylamino group.
- “—NR 10 COR 12 ” includes, for example, acetylamino group, ethylcarbonylamino group, propylcarbonylamino group, isopropylcarbonylamino group, butylcarbonylamino group, isobutylcarbonylamino group, benzoylamino group, 1- or 2- A naphthoylamino group is mentioned.
- Examples of “—OSO 2 R 11 ” include a methylsulfonyloxy group, an ethylsulfonyloxy group, a propylsulfonyloxy group, a butylsulfonyloxy group, and a tert-butylsulfonyloxy group.
- Examples of “—SO 2 NR 12 R 13 ” include a methylaminosulfonyl group, an ethylaminosulfonyl group, a propylaminosulfonyl group, a butylaminosulfonyl group, and a tert-butylaminosulfonyl group.
- Examples of “—CR 12 ⁇ N (OR 11 ) —” include N-hydroxyiminoethyl group, N-hydroxy-1-iminopropyl group, N-methoxyiminoethyl group, N-methoxy-1-iminopropyl group. N-ethoxyiminoethyl group and N-ethoxy-1-iminopropyl group.
- R 1 and R 2 are each independently a hydrogen atom, a C 1-6 alkyl group or a C 3-8 cycloalkyl group, preferably a hydrogen atom or a C 1-3 alkyl group, independently of each other, and more Preferably, one of R 1 and R 2 is a hydrogen atom, and the other is a C 1-3 alkyl group.
- R 1 and R 2 include a hydrogen atom, a methyl group, an ethyl group, a propyl group, an isopropyl group, and a cyclopropyl group, and one of R 1 and R 2 is a hydrogen atom, and the other is A methyl group is preferred.
- R 3 and R 4 are each independently a hydrogen atom or a C 1-6 alkyl group, and preferably are independently a hydrogen atom or a C 1-3 alkyl group. Specific examples of R 3 and R 4 include a hydrogen atom, a methyl group, and an ethyl group, and it is preferable that both R 3 and R 4 are hydrogen atoms.
- R 5 represents an optionally substituted C 4-7 alkyl group or — (CR 8 R 9 ) r —E.
- C 4-7 alkyl group in R 5 include n-butyl group, n-pentyl group, n-hexyl group, n-heptyl group, 1-ethylpropyl group, 1,1-dimethylpropyl group, -Methyl-1-ethylpropyl group, 1,1-diethylpropyl group, 2,2-dimethylpropyl group, sec-butyl group, isobutyl group, tert-butyl group, 1-methylbutyl group, 2-methylbutyl group, 3- Examples include methylbutyl group, 2-ethylbutyl group, 2,2-dimethylbutyl group, 3,3-dimethylbutyl group, 2-methyl-2-ethylbutyl group, preferably isobutyl group, 2,2-dimethylpropyl, Examples include a 3-methylbutyl group, a 3,3-dimethylbutyl group, and a 2-ethylbutyl group, 1-e
- R 8 and R 9 are each independently a hydrogen atom, a fluorine atom or an optionally substituted C 1-6 alkyl group, preferably independently of each other a hydrogen atom or a C 1-3 alkyl group, and more Preferably both R 8 and R 9 are hydrogen atoms.
- R 8 and R 9 include a hydrogen atom, a methyl group, an ethyl group, and a hydroxymethyl group.
- R is 1, 2, 3 or 4, preferably 1, 2 or 3, more preferably 1 or 2, and even more preferably 1.
- E represents an optionally substituted C 3-8 cycloalkyl group, an optionally substituted C 4-8 cycloalkenyl group, an optionally substituted 5- to 10-membered saturated heterocyclic group (the saturated heterocyclic ring).
- the group includes 1 to 3 heteroatoms independently selected from the group consisting of oxygen and sulfur atoms as constituent atoms of the ring.), An optionally substituted C 6-10 aryl group or substituted An optionally substituted 5- to 10-membered heteroaryl group, preferably an optionally substituted C 3-8 cycloalkyl group, an optionally substituted 5- to 10-membered saturated heterocyclic group (the saturated
- the heterocyclic group includes 1 to 3 heteroatoms independently selected from the group consisting of an oxygen atom and a sulfur atom as ring-constituting atoms.), An optionally substituted C 6-10 aryl group Or replaced There heteroaryl group which may 5-10 membered, more preferably optionally substituted C 3-8 also be a cyclo
- Examples of the substituent for the C 6-10 aryl group or 5- to 10-membered heteroaryl group in E include (i) a halogen atom such as a fluorine atom or a chlorine atom, (ii) a methyl group, an ethyl group, or a propyl group.
- C 1-6 alkyl groups such as, (iii) a methoxy group, an ethoxy group, C 1-6 alkyloxy group such as an isopropoxy group, (iv) a methylthio group, C 1-6 alkylthio group such as an ethylthio group, (v ) Cyano group, (vi) trifluoromethyl group, (vii) trifluoromethoxy group, (viii) hydroxyl group, (ix) difluoromethoxy group, preferably fluorine atom, chlorine atom, methyl group and methoxy group It is done.
- substituents can be substituted by 1 or the same or different two or more at any substitutable position.
- E include a halogen atom, a cyano group, a substituent selected from the group consisting of an optionally substituted C 1-6 alkyl group and an optionally substituted C 1-6 alkyloxy group.
- An optionally substituted phenyl group (preferably a phenyl group substituted at the 4-position), cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, tetrahydrofuryl group, tetrahydro-2H-pyranyl group, 1, 4-dioxanyl group, tetrahydrothienyl group, tetrahydro-2H-thiopyranyl group, and (The bonding position on the bicyclo ring in the above formula is not particularly limited as long as it is chemically stable.), Preferably a phenyl group, a 4-fluorophenyl group, a 4-chlorophenyl group 4-methylpheny
- R 6 and R 7 are each independently a hydrogen atom, a fluorine atom or an optionally substituted C 1-6 alkyl group, preferably independently of each other a hydrogen atom or a fluorine atom, more preferably R 6 And R 7 are both hydrogen atoms.
- R 6 and R 7 include a hydrogen atom, a fluorine atom, and a methyl group.
- A is an optionally substituted C 6-10 aryl group or an optionally substituted 5- to 10-membered heteroaryl group, preferably an optionally substituted C 6-10 aryl group.
- the C 6-10 aryl group which may be substituted is preferably a C 6 or C 10 aryl group which may be substituted, and more preferably a C 6 aryl group which may be substituted.
- the 5- to 10-membered heteroaryl group which may be substituted is preferably a 5- or 6-membered or 9- or 10-membered heteroaryl group which may be substituted, and more preferably may be substituted.
- Preferred examples of A include an optionally substituted phenyl group or an optionally substituted 1- or 2-naphthyl group, and more preferably an optionally substituted phenyl group.
- a halogen atom such as a fluorine atom or a chlorine atom
- a fluorine atom such as a methyl group, an ethyl group, a propyl group, or a trifluoromethyl group
- a C 1-6 alkyl group (iii) a methoxy group, an ethoxy group, isopropoxy group, trifluoromethoxy C 1-6 alkyl group optionally substituted by a fluorine atom, such groups and (iv) a methylthio group, C 1-6 alkylthio groups such as ethylthio group, (v) cyano group, and the like (vi) hydroxyl, preferably a fluorine atom, a chlorine atom, a methyl group A and methoxy groups, more preferably fluorine atom and chlorine atom.
- substituents may be substituted at one or the same or different positions at any substitutable position.
- the C 6-10 aryl group and the 5- to 10-membered heteroaryl group form a condensed ring with C 3-8 cycloalkyl, C 4-8 cycloalkenyl, or a 5- to 10-membered saturated heterocycle. Also good.
- optionally substituted phenyl group examples include the following formulas: (Wherein, R 14, R 15 and R 16 independently of one another are halogen atoms, by C 1-6 optionally alkyl substituted by fluorine atoms, is optionally C 1-6 alkyl substituted by fluorine atoms An oxy group and a cyano group, and * represents a bonding position).
- L is an oxygen atom, a sulfur atom or —NR 10 —, preferably an oxygen atom or a sulfur atom, more preferably an oxygen atom.
- R 10 is a hydrogen atom, a C 1-6 alkyl group or a C 3-8 cycloalkyl group, preferably a hydrogen atom or a C 1-6 alkyl group, more preferably a hydrogen atom or a C 1-3 alkyl group is there.
- R 10 include a hydrogen atom, methyl group, ethyl group, n-propyl group, butyl group, pentyl group, hexyl group, cyclopropyl group, cyclobutyl group, cyclopentyl group, and cyclohexyl group, preferably a hydrogen atom.
- a methyl group preferably a hydrogen atom.
- X is a hydrogen atom, a C 1-6 alkyl group optionally substituted with a fluorine atom, or a halogen atom, and examples thereof include a hydrogen atom, a fluorine atom, a chlorine atom, and a methyl group.
- X is preferably a hydrogen atom or a halogen atom, more preferably a hydrogen atom.
- N is 1, 2 or 3, preferably 1 or 2, more preferably 1.
- suitable compounds include the following compounds or pharmaceutically acceptable salts thereof.
- R 1 and R 2 are each independently a hydrogen atom or a C 1-6 alkyl group
- R 3 and R 4 are each independently a hydrogen atom or a methyl group
- R 5 is an optionally substituted C 4-7 alkyl group or — (CR 8 R 9 ) r —E
- R 6 and R 7 are hydrogen atoms
- R 8 and R 9 are each independently a hydrogen atom, a fluorine atom or an optionally substituted C 1-6 alkyl group
- A is an optionally substituted C 6-10 aryl group or an optionally substituted 5- to 10-membered heteroaryl group
- r is 1 or 2
- E is an optionally substituted C 3-8 cycloalkyl group, an optionally substituted C 4-8 cycloalkenyl group, an optionally substituted 5- to 10-membered saturated heterocyclic group (the saturated heterocyclic ring)
- the group includes 1 to 3 heteroatoms selected from the group consisting of an oxygen atom and a sulfur atom
- R 1 and R 2 are each independently a hydrogen atom or a C 1-6 alkyl group
- R 3 and R 4 are hydrogen atoms
- R 5 is an optionally substituted C 4-7 alkyl group or — (CR 8 R 9 ) r —E
- R 6 and R 7 are hydrogen atoms
- R 8 and R 9 are each independently a hydrogen atom, a fluorine atom or an optionally substituted C 1-6 alkyl group
- A is an optionally substituted C 6-10 aryl group, r is 1 or 2
- C is an optionally substituted C 3-8 cycloalkyl group, an optionally substituted 5- to 10-membered saturated heterocyclic group (the saturated heterocyclic group has 1 to 3
- L is an oxygen atom
- n is 1, The compound whose X is a hydrogen atom is mentioned.
- R 1 and R 2 are hydrogen atom, and the other is a C 1-6 alkyl group (preferably a methyl group);
- R 5 may be substituted C 4-7 alkyl group (preferably isobutyl group, 2,2-dimethylpropyl, 3-methylbutyl group, 3,3-dimethylbutyl group, 2-ethylbutyl group) or —CH 2 -E,
- R 3 , R 4 , R 6 , and R 7 are hydrogen atoms
- A is an optionally substituted C 6-10 aryl group (preferably a phenyl group, a naphthyl group)
- r is 1
- E is an optionally substituted C 3-8 cycloalkyl group (preferably cyclopropyl, cyclobutyl, cyclopentyl group, cyclohexyl group) or an optionally substituted C 6-10 aryl group (preferably phenyl group, naphthyl group)
- L is an oxygen atom
- Suitable compounds include the following compounds or pharmaceutically acceptable salts thereof.
- Example 5 1- ⁇ 1- (cyclohexylmethyl) -5-[(2-fluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 20 1- ⁇ 1- (cyclohexylmethyl) -5-[(3-fluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 21 1- ⁇ 1- (cyclohexylmethyl) -5-[(4-fluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 22 1- ⁇ 5-[(2-chlorobenzyl) oxy] -1- (cyclo
- Example 24 1- ⁇ 5-[(3-chlorobenzyl) oxy] -1- (cyclohexylmethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 24 1- ⁇ 1- (cyclohexylmethyl) -5-[(2-methylbenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 26 1- ⁇ 1- (cyclohexylmethyl) -5-[(3-methylbenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 27 1- ⁇ 1- (cyclohexylmethyl) -5-[(2,4-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 29 1- ⁇ 5-[(2-chloro-4-fluorobenzyl) oxy] -1- (cyclohe
- Example 144 1- ⁇ 1- (cyclopentylmethyl) -5-[(2,4-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 144 1- ⁇ 5-[(2-Chloro-4-fluorobenzyl) oxy] -1- (cyclopentylmethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 145 1- ⁇ 1- (cyclopentylmethyl) -5-[(4-fluoro-2-methylbenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 146 1- ⁇ 1- (cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine;
- Example 147 1- ⁇ 5-[(5-chloro-2-
- the production method of compound (1) in the present invention will be described.
- the pyrazole compound of the present invention can be produced from a known compound by appropriately combining synthetic methods well known to those skilled in the art by the following production method or a method according to the following production method.
- the raw material compounds can be produced by using known compounds, or by appropriately combining synthetic methods well known to those skilled in the art by the methods described in the examples below or the methods according to the examples below.
- the compound represented by the formula (A-4) in which R 2 and X are hydrogen atoms or a salt thereof can be produced, for example, by the following method.
- R 1, R 3, R 4, R 5, R 6, R 7, A and n have the same meanings as defined according to the [1]
- L a represents an oxygen atom or a sulfur atom
- LG represents a leaving group such as a substituted sulfonyloxy group such as an iodine atom, bromine atom, chlorine atom, p-toluenesulfonyloxy group, benzenesulfonyloxy group and methanesulfonyloxy group
- PG represents a tert-butoxycarbonyl group or benzyl group. Represents a protecting group for an amino group such as an oxycarbonyl group.
- Compound (A-3) or a salt thereof can be obtained by reacting compound (A-1) or a salt thereof with compound (A-2).
- the reaction is carried out in the presence of a base and / or a phase transfer catalyst, if necessary, in a suitable inert solvent at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used for 10 minutes to 48 hours. Can be done.
- Examples of the base include organic bases such as triethylamine and pyridine, inorganic bases such as sodium carbonate, potassium carbonate, cesium carbonate, sodium hydride, potassium hydroxide, silver oxide and silver carbonate, and metal alkoxides such as potassium tert-butoxide. Can be mentioned.
- Examples of the phase transfer catalyst include tetrabutylammonium hydrogen sulfate.
- the inert solvent examples include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, N—
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- lower alcohols such as methanol, ethanol and isopropanol
- N, N— examples thereof include aprotic polar solvents such as dimethylformamide (DMF), N-methyl-2-pyrrolidone (NMP) and acetonitrile, or a mixed solvent thereof. More preferred solvents include N, N-dimethylformamide (DMF), N-methyl-2-pyrrolidone (NMP) and acetonitrile.
- halogen atoms such as chlorine atom, bromine atom and iodine atom, and substituted sulfonyloxy groups such as p-toluenesulfonyloxy group, benzenesulfonyloxy group and methanesulfonyloxy group are preferable.
- Halogen atoms such as chlorine atom, bromine atom and iodine atom are more preferred.
- the target compound (A-4) can be obtained by deprotecting the protecting group PG of the amino group of the compound (A-3) by an appropriate method.
- the amino protecting group PG is a Boc group
- an inorganic acid such as hydrochloric acid or sulfuric acid or trifluoroacetic acid at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used in a suitable inert solvent.
- Deprotection can be performed by treatment with an organic acid such as
- the inert solvent include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, N—
- aprotic polar solvents such as dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) or a mixed solvent thereof.
- PG represents a benzyloxycarbonyl group
- hydrogen is removed using a palladium catalyst such as palladium carbon or palladium hydroxide at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used in a suitable inert solvent.
- Deprotection can be performed by performing an addition reaction.
- the inert solvent examples include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, N—
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- lower alcohols such as methanol, ethanol and isopropanol, N, N—
- aprotic polar solvents such as dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) or a mixed solvent thereof.
- R 1 , R 3 , R 4 , R 5 , R 6 , R 7 , R 10 , A, PG and n are as defined above, and R 10a represents a C 1-6 alkyl group.
- Compound (A-6) can be obtained by reacting compound (A-1-c) or a salt thereof with compound (A-5) or a salt thereof to form an amide bond.
- the carboxyl group of the compound (A-5) is converted into an acid chloride method using thionyl chloride, oxalyl chloride, a mixed acid anhydride method using chlorocarbonate or pivaloyl chloride, and dicyclohexylcarbodiimide (DCC).
- Step (ii) The compound (A-6) is reacted in a suitable inert solvent at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used with a suitable reducing agent for 10 minutes to 48 hours.
- A-7) can be obtained.
- suitable reducing agents include lithium aluminum hydride and diborane.
- suitable inert solvents include aromatic hydrocarbons such as benzene and toluene, and ether solvents such as diethyl ether, tetrahydrofuran (THF), and 1,4-dioxane.
- Step (iii) Compound (A-7) is alkylated with an alkyl halide corresponding to R 10a in the presence of a suitable base at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used in a suitable inert solvent.
- Compound (A-8) can be obtained by the reaction.
- Suitable inert solvents include, for example, aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, Examples thereof include aprotic polar solvents such as N-dimethylformamide (DMF), N-methyl-2-pyrrolidone (NMP) and acetonitrile, or a mixed solvent thereof.
- Suitable bases include inorganic bases such as potassium carbonate, sodium carbonate, cesium carbonate, sodium hydride and potassium hydride, metal alkoxides such as potassium tert-butoxide, and the like.
- Step (iv) In compound (A-7) or compound (A-8), the target compound (A-9) can be obtained by deprotecting the amino group in the same manner as in step (ii) of production method 1.
- the compound represented by the formula (A-12) or a salt thereof can be produced by the following method. [Wherein, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , A, n and LG are as defined above] ]
- Compound (A-12) or a salt thereof can be obtained by reacting compound (A-10) or a salt thereof with compound (A-11) or a salt thereof. The reaction is carried out in the presence of a base, optionally in the presence of a phase transfer catalyst, in a suitable inert solvent at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used for 10 minutes.
- the base include organic bases such as triethylamine and pyridine, inorganic bases such as sodium carbonate, potassium carbonate, cesium carbonate, sodium hydride and potassium hydroxide, metal alkoxides such as sodium methoxide and potassium tert-butoxide, and the like.
- the phase transfer catalyst include tetrabutylammonium hydrogen sulfate.
- the inert solvent examples include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, N—
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- lower alcohols such as methanol, ethanol and isopropanol, N, N—
- aprotic polar solvents such as dimethylformamide (DMF), N-methyl-2-pyrrolidone (NMP) and acetonitrile, or a mixed solvent thereof.
- the leaving group LG is preferably a halogen atom such as a chlorine atom, a bromine atom or an iodine atom, or a substituted sulfonyloxy group such as a p-toluenesulfonyloxy group, a benzenesulfonyloxy group or a methanesulfonyloxy group.
- a halogen atom such as a chlorine atom, a bromine atom or an iodine atom
- a substituted sulfonyloxy group such as a p-toluenesulfonyloxy group, a benzenesulfonyloxy group or a methanesulfonyloxy group.
- the compound represented by the formula (A-15) or a salt thereof in which R 3 , R 4 and X are hydrogen atoms can be produced by, for example, the following method. [Wherein, R 1 , R 2 , R 5 , R 6 , R 7 , A and n are as defined above]. R a represents a hydrogen atom or a C 1-6 alkyl group. ]
- Compound (A-14) or a salt thereof can be obtained by reacting compound (A-13) or a salt thereof with compound (A-11) or a salt thereof to form an amide bond.
- the amide bond forming reaction may be carried out by mixing the carboxyl group of the compound (A-13) with an acid chloride method using thionyl chloride, oxalyl chloride, etc.
- reaction can be carried out by reacting with compound (A-11), and when R a represents a C 1-6 alkyl group, the amide bond forming reaction is carried out between compound (A-13) and compound (A-11).
- a salt thereof in the presence of a suitable acid or base, if necessary, in a suitable inert solvent or without solvent.
- the reaction can be carried out by reacting for 10 minutes to 48 hours at a temperature ranging from 20 ° C. to the boiling point of the solvent used.
- Suitable bases include, for example, organic bases such as triethylamine and pyridine, sodium carbonate, potassium carbonate Inorganic bases such as cesium carbonate, sodium hydride, potassium hydroxide, etc.
- Suitable acids include organic acids such as p-toluenesulfonic acid, acetic acid and trifluoroacetic acid, inorganic acids such as hydrochloric acid and sulfuric acid, chloride
- suitable inert solvents include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, methanol, ethanol, Lower alcohol such as isopropanol, N, N-dimethylformamide (DMF), aprotic polar solvent or a mixed solvent thereof N- such as methyl-2-pyrrolidone (NMP).
- aromatic hydrocarbons such as benzene and toluene
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- methanol ethanol
- Lower alcohol such as isopropanol, N, N
- Step (ii) Compound (A-14) can be reacted in a suitable inert solvent at a temperature ranging from about ⁇ 78 ° C. to the boiling point of the solvent used for 10 minutes to 48 hours using a suitable reducing agent.
- suitable reducing agents include lithium aluminum hydride and diborane.
- suitable inert solvents include aromatic hydrocarbons such as benzene and toluene, and ether solvents such as diethyl ether, tetrahydrofuran (THF), and 1,4-dioxane.
- the compound represented by the formula (A-17) in which R 3 and X are hydrogen atoms or a salt thereof can be produced, for example, by the following method. [Wherein, R 1 , R 2 , R 4 , R 5 , R 6 , R 7 , A and n are as defined above]. ]
- the object compound (A-17) or a salt thereof is obtained by subjecting the compound (A-16) and the compound (A-11) or a salt thereof to about ⁇ in an appropriate inert solvent, if necessary, in the presence of an appropriate acid. It can be obtained by reaction under reductive amination conditions using a suitable reducing agent at a temperature ranging from 78 ° C.
- the inert solvent examples include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, N—
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- lower alcohols such as methanol, ethanol and isopropanol, N, N—
- aprotic polar solvents such as dimethylformamide (DMF), N-methyl-2-pyrrolidone (NMP) and acetonitrile, acetic acid and water, or a mixed solvent thereof.
- Suitable acids include inorganic acids such as phosphoric acid, hydrochloric acid and sulfuric acid, and organic acids such as acetic acid and trifluoroacetic acid.
- reducing agent examples include sodium cyanoborohydride, sodium triacetoxyborohydride, sodium borohydride and the like.
- Compound (A-16) and compound (A-11) or a salt thereof may be mixed as they are for the reaction, or imine may be formed in advance for the reaction.
- the compound represented by the formula (A-20) in which a halogen atom is substituted at the 4-position of the pyrazole ring or a salt thereof can be produced, for example, by the following method.
- R 1 , R 3 , R 4 , R 5 , R 6 , R 7 , A, L, n and PG are as defined above, and
- X a is a halogen such as a fluorine atom, a chlorine atom and a bromine atom. Represents an atom.
- Compound (A-19) is obtained by reacting Compound (A-18) with a suitable halogenating agent in a suitable inert solvent at a temperature ranging from about ⁇ 78 ° C. to the boiling point of the solvent used. be able to.
- suitable inert solvents include lower alcohols such as methanol, ethanol and isopropanol, and aprotic polar solvents such as N, N-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP).
- Suitable halogenating agents, X a is if it represents a chlorine atom include N- chlorosuccinimide (NCS) is, if X a represents a bromine atom is N- bromosuccinimide (NBS) and 5,5 - include dimethyl-1,3-dibromohydantoin, if X a represents an iodine atom include N- iodosuccinimide (NIS) is, if X a represents a fluorine atom of 1-chloromethyl-4 Fluoro-1,4-diazoniabicyclo [2.2.2] -octane bis (tetrafluoroborate) (Selectfluor®).
- Step (ii) The target compound (A-20) can be obtained by deprotecting the amino group in the same manner as in step (ii) of production method 1.
- the compound represented by the formula (A-23) in which an alkyl group is substituted at the 4-position of the pyrazole ring or a salt thereof can be produced, for example, by the following method.
- R 1 , R 3 , R 4 , R 5 , R 6 , R 7 , A, L, n and PG are as defined above
- X b represents a chlorine atom, a bromine atom or an iodine atom
- X c represents a C 1-6 alkyl group which may be substituted with a fluorine atom such as a methyl group or a trifluoromethyl group.
- Xc represents a trifluoromethyl group
- the compound (A-22) can be obtained by the above method. Specifically, it can be obtained by reacting (A-21) with trifluoroacetic acid methyl ester or trifluoroacetic acid sodium salt in the presence of a monovalent copper salt such as copper (I) iodide.
- Step (ii) The target compound (A-23) can be obtained by deprotecting the amino group in the same manner as in step (ii) of production method 1.
- Compound (B-3) can be produced, for example, from compound (B-1) and compound (B-2) or a salt thereof in the same manner as described in the literature (Tetrahedron, 60 (2004), 1731-1848). Specifically, compound (B-1) is activated with carbonyldiimidazole (CDI) in a suitable inert solvent at a temperature ranging from about ⁇ 20 ° C. to 30 ° C., followed by the presence of a suitable acid or base. The compound (B-3) can be obtained by reacting with the compound (B-2) at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used.
- CDI carbonyldiimidazole
- Suitable inert solvents include, for example, aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF), 1,4-dioxane, and mixed solvents thereof.
- a suitable acid includes magnesium chloride.
- Compound (A-1-a) can be produced by reacting for 10 minutes to 48 hours.
- Suitable bases include, for example, organic bases such as triethylamine and pyridine, metal alkoxides such as tert-butoxy potassium, and inorganic bases such as sodium carbonate, potassium carbonate, and cesium carbonate.
- Suitable acids include organic acids such as p-toluenesulfonic acid, methanesulfonic acid, acetic acid and trifluoroacetic acid, and inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid.
- Suitable inert solvents include, for example, aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, Examples thereof include aprotic polar solvents such as N-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) or a mixed solvent thereof.
- aromatic hydrocarbons such as benzene and toluene
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- lower alcohols such as methanol, ethanol and isopropanol
- aprotic polar solvents such as N-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) or a mixed solvent thereof.
- Step (iii) Compound (A-1-a) is reacted with Lawesson's reagent in a suitable inert solvent or without solvent at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used.
- suitable inert solvents include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF), and 1,4-dioxane.
- Process (i) The compound (B-5) is reacted with an anion generated by reacting an appropriate base with acetonitrile at a temperature ranging from about ⁇ 78 ° C. to the boiling point of the solvent used in an appropriate inert solvent.
- suitable inert solvents include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF), and 1,4-dioxane.
- Suitable bases include inorganic bases such as sodium hydride and potassium hydroxide, metal alkoxides such as sodium methoxide and potassium tert-butoxide.
- Step (ii) Compound (A-1-c) can be obtained by reacting compound (B-6) and compound (B-4) in the same manner as in step (ii) of production method (9).
- Manufacturing method 11 Compound (A-10), Compound (A-13) and Compound (A-16) described in Production Methods 3 to 5 can be produced by the methods described below. [Wherein R 3 , R 4 , R 5 , R 6 , R 7 , LG, n, A and R a are as defined above].
- M 1 represents a hydrogen atom, an alkali metal such as sodium or potassium, and an alkaline earth metal such as magnesium or calcium. ]
- compound (B-7) can be prepared in a suitable inert solvent or in the absence of a solvent in the presence of a suitable acid or base.
- Compound (B-8) can be produced by reacting with compound (B-4) for 10 minutes to 48 hours at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used.
- suitable bases include amines such as triethylamine and pyridine, and inorganic bases such as sodium carbonate, potassium carbonate, and cesium carbonate.
- Suitable acids include organic acids such as p-toluenesulfonic acid, methanesulfonic acid, acetic acid and trifluoroacetic acid, and inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid.
- Suitable inert solvents include, for example, aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, Examples thereof include aprotic polar solvents such as N-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) or a mixed solvent thereof.
- aromatic hydrocarbons such as benzene and toluene
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- lower alcohols such as methanol, ethanol and isopropanol
- aprotic polar solvents such as N-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) or a mixed solvent thereof.
- Step (ii) Compound (A-13) can be obtained by reacting compound (B-8) and compound (A-2) in the same manner as in the method described in the step (i) of production method 1.
- Steps (iii) to (vii) Compound (A-13) can be obtained by a conventional method [for example, Comprehensive Organic Transformations, R. Sea. By appropriate conversion according to R. C. Larock (1989) and the like], it can be converted into compound (A-10) or compound (A-16).
- the compound represented by the formula (A-12-a) or a salt thereof can be produced by the following method.
- R 1 , R 3 , R 4 , R 5 , R 6 , R 7 , LG, n, and A are as defined above
- PG 1 represents an amino-protecting group such as tert-butoxycarbonyl group or benzyloxycarbonyl group, or two PG 1 groups present on the same nitrogen atom form a ring together with the nitrogen atom to form phthalimide or Represents succinimide.
- R 1 , R 3 , R 4 , R 5 , R 6 , R 7 , LG, n, and A are as defined above
- PG 1 represents an amino-protecting group such as tert-butoxycarbonyl group or benzyloxycarbonyl group, or two PG 1 groups present on the same nitrogen atom form a ring together with the nitrogen atom to form phthalimide or Represents succinimide.
- Step (i) Compound (A-3-a) or Compound (A-3-b) or a salt thereof is converted from Compound (A-10) or a salt thereof to Compound (B-10-a) or Compound (B-10-b) Or it can obtain by making it react with those salts.
- the reaction is carried out in the presence of a base, optionally in the presence of a phase transfer catalyst, in a suitable inert solvent at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used for 10 minutes. It can be carried out by reacting for ⁇ 48 hours.
- Examples of the base include organic bases such as triethylamine and pyridine, inorganic bases such as sodium carbonate, potassium carbonate, cesium carbonate, sodium hydroxide, potassium hydroxide, sodium hydride, potassium hydroxide, sodium methoxide, potassium tert-butoxide And metal alkoxides.
- Examples of the phase transfer catalyst include tetrabutylammonium hydrogen sulfate.
- the inert solvent examples include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, lower alcohols such as methanol, ethanol and isopropanol, N, N—
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- lower alcohols such as methanol, ethanol and isopropanol, N, N—
- aprotic polar solvents such as dimethylformamide (DMF), N-methyl-2-pyrrolidone (NMP) and acetonitrile, or a mixed solvent thereof.
- the leaving group LG is preferably a halogen atom such as a chlorine atom, a bromine atom or an iodine atom, or a substituted sulfonyloxy group such as a p-toluenesulfonyloxy group, a benzenesulfonyloxy group or a methanesulfonyloxy group.
- a halogen atom such as a chlorine atom, a bromine atom or an iodine atom
- a substituted sulfonyloxy group such as a p-toluenesulfonyloxy group, a benzenesulfonyloxy group or a methanesulfonyloxy group.
- Step (ii) The target compound (A-12-a) can be obtained by deprotecting the amino group in the same manner as in step (ii) of production method 1.
- an appropriate inert compound with an amino compound such as hydrazine monohydrate or methylamine
- the reaction can be performed in a solvent or without solvent at a temperature ranging from about ⁇ 20 ° C. to the boiling point of the solvent used for 10 minutes to 48 hours.
- inert solvent examples include aromatic hydrocarbons such as benzene and toluene, ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane, and lower alcohols such as methanol, ethanol and isopropanol, or a mixture thereof.
- aromatic hydrocarbons such as benzene and toluene
- ether solvents such as diethyl ether, tetrahydrofuran (THF) and 1,4-dioxane
- lower alcohols such as methanol, ethanol and isopropanol, or a mixture thereof.
- a solvent is mentioned.
- the raw materials and reagents used in the above production method are commercially available compounds or can be produced from known compounds using known methods unless otherwise specified.
- another compound of the formula (1) may be obtained by appropriately converting a functional group.
- the transformation of the functional group is performed by a commonly used general method [for example, Comprehensive Organic Transformations, Earl. Sea. By R. C. Larock (1989) etc.].
- any functional group other than the reactive site changes under the described reaction conditions or is inappropriate for carrying out the described method
- the functional group is protected in advance with an appropriate protecting group.
- the target compound can be obtained by carrying out the reaction and then deprotecting.
- Protecting groups include, for example, Protective Groups in Organic Synthesis, TW Greene, John Wiley & Sons (John Wiley & Sons) Inc.) (1981) and the like, and usual protective groups can be used.
- examples of the protecting group for amine include ethoxycarbonyl, tert-butoxycarbonyl, benzyloxycarbonyl, acetyl, benzoyl or benzyl, and examples of the hydroxyl protecting group include trialkylsilyl, acetyl, benzoyl or benzyl. be able to.
- examples of the protecting group for the ketone include dimethyl acetal, 1,3-dioxane, 1,3-dioxolane, S, S′-dimethyldithioacetal, 1,3-dithiane, oxime and the like.
- the intermediate and target compound in the above production method can be isolated and purified by a purification method commonly used in organic synthetic chemistry, for example, neutralization, filtration, extraction, washing, drying, concentration, recrystallization, various chromatography, and the like. it can. Further, the intermediate can be subjected to the next reaction without any particular purification.
- Some compounds represented by the formula (1) or pharmaceutically acceptable salts thereof may have tautomers.
- tautomerism include the following formulas.
- the present invention includes all possible isomers including optical isomers, stereoisomers, positional isomers, rotational isomers and mixtures thereof including the tautomers.
- each optical isomer is also included in the formula (1).
- These isomers can be separated and purified by known synthetic techniques such as chromatography and recrystallization, and separation techniques.
- an optical resolution method for separation of compound (1) into optical isomers, an optical resolution method known to those skilled in the art may be used.
- the optically active acid include monocarboxylic acids such as mandelic acid, N-benzyloxyalanine, and lactic acid, dicarboxylic acids such as tartaric acid, o-diisopropylidene tartaric acid, malic acid, camphorsulfonic acid, bromocamphorsulfonic acid, and the like.
- the temperature at which the salt is formed include a range from room temperature to the boiling point of the solvent.
- the compound represented by the formula (1) includes a compound labeled with an isotope such as 3 H, 14 C, 35 S, 125 I, and a deuterium substitution product in which 1 H is converted to 2 H (D). Are also included.
- the pharmaceutically acceptable salt of the compound represented by the formula (1) is a conventional non-toxic salt, and an organic acid salt (for example, acetate, propionate, trifluoroacetate, maleate, fumarate) Citrate, succinate, tartrate, methanesulfonate, benzenesulfonate, formate, toluenesulfonate) or inorganic acid salts (eg hydrochloride, hydrobromide, hydroiodide) Acid addition salts such as sulfates, nitrates, phosphates), salts with amino acids (eg arginic acid, aspartic acid, glutamic acid), alkali metal salts (eg sodium salts, potassium salts) or alkaline earth metal salts ( Metal salts such as calcium salts, magnesium salts), ammonium salts, or organic base salts such as trimethylamine salts, triethylamine salts, pyridine salts, picoline salts, Cyclohexylamine
- a pharmaceutically acceptable salt of the compound represented by the formula (1) it can be purified as it is when the compound (1) is obtained in the form of a pharmaceutically acceptable salt, while in the free form.
- it can be converted into a salt by mixing with a pharmaceutically acceptable acid or alkali in a solvent such as water, methanol, ethanol or acetone.
- the compound represented by the formula (1) and a pharmaceutically acceptable salt thereof may exist as a hydrate with water or a solvate with various solvents such as ethanol. And solvates are also encompassed by the present invention.
- a crystal polymorph may exist in the compound represented by the formula (1) obtained as a crystal and a pharmaceutically acceptable salt thereof, and the crystal polymorph is also included in the present invention.
- the pyrazole compound of the present invention and a pharmaceutically acceptable salt thereof have a human serotonin reuptake inhibitory action and a 5-HT 2C antagonistic action, particularly a reverse action. Therefore, the compounds and salts are useful as therapeutic agents or preventive agents for diseases mediated by the serotonin nervous system.
- diseases mediated by the serotonin nervous system include depression and anxiety. Depression is included as a mood disorder in the classification of psychiatric disorders. Among the mood disorders, there are mainly depressive disorder and bipolar disorder. As general depression, more particularly, (i) a depressive disorder, including a major depressive disorder, a mood modulation disorder or an unspecified depressive disorder, (ii) depression, or (iii) Seasonal affective disorder.
- the compounds and salts are useful as these therapeutic agents or preventive agents for recurrence. Furthermore, (iv) the compound and the salt are useful as a therapeutic agent for a major depressive episode or a preventive agent for recurrence in bipolar disorder.
- anxiety anxiety disorder mainly includes anxiety disorder and phobia.
- Anxiety (anxiety disorder) in which the compound and salt are useful as a therapeutic or recurrence preventive agent includes (v) panic disorder, obsessive compulsive disorder, post-traumatic stress disorder, acute stress disorder, generalized anxiety disorder or general physical disease Anxiety disorders, (vi) anxiety disorders including substance-induced anxiety disorders, (vii) agoraphobia, (viii) social phobias, (ix) evasive personality abnormalities, or (x) psychosomatic disorders.
- the compounds and salts are also useful for depression or anxiety symptoms associated with other diseases (schizophrenia, dementia, etc.).
- the compounds and salts provide memory impairment including dementia, amnesia and age-related memory impairment; disturbances in eating behavior including anorexia nervosa and neurological starvation; obesity; sleep disorders; schizophrenia Drug dependence such as alcohol, tobacco, nicotine, narcotic, stimulant, psychotropic drug; cluster headache; migraine; pain; Alzheimer's disease; chronic seizure migraine; headache related to vascular disorder; dementia of Parkinson's disease; Parkinson's disease, including depression, anxiety, neuroleptic-induced parkinsonism and late-onset dyskinesia; endocrine abnormalities such as hyperprolactinemia; vasospasm (especially of the cerebral vasculature); hypertension; motility and secretion changes It is also useful for treating gastrointestinal disorders involved; treating sexual dysfunction, including early firing, or preventing recurrence.
- the dose of the pyrazole compound of the present invention and a pharmaceutically acceptable salt thereof may be increased or decreased depending on the age and condition of the patient.
- 0.1 mg / individual when administered to a human, 0.1 mg / individual to about 1,000 mg / day.
- An individual preferably in an amount of 1 mg / individual to about 100 mg / individual can be administered per day.
- the number of administrations per day is given once or several times a day, for example, 1, 2 or 3 doses each time.
- the pyrazole compounds of the present invention and pharmaceutically acceptable salts thereof, when used for therapy, are used as pharmaceutical compositions orally or parenterally (for example, intravenous, subcutaneous, intramuscular, intrathecal, topical , Rectal, transdermal, nasal or pulmonary).
- parenterally for example, intravenous, subcutaneous, intramuscular, intrathecal, topical , Rectal, transdermal, nasal or pulmonary.
- dosage form for oral administration include dosage forms such as tablets, capsules, pills, granules, fine granules, powders, solutions, syrups, suspensions, etc.
- Examples of the dosage form include aqueous injections, non-aqueous injections, suppositories, nasal preparations, transdermal absorption agents [lotions, emulsions, ointments, creams, jellies, gels, patches ( Tape preparations, transdermal patch preparations, poultices, etc.), external powders, etc.].
- These preparations can be prepared using conventionally known techniques, and can contain non-toxic and inert carriers or excipients usually used in the pharmaceutical field.
- the pharmaceutical carrier which is a pharmaceutically acceptable carrier
- a substance which is commonly used in the pharmaceutical field and does not react with the compound represented by the formula (1) or a pharmaceutically acceptable salt thereof is used. That is, the pharmaceutical composition containing the compound represented by the formula (1) or a pharmaceutically acceptable salt thereof includes an excipient, a binder, a lubricant, a stabilizer, a disintegrant, a buffer, and a solubilizing agent.
- Tonicity agent pH adjuster, surfactant, emulsifier, suspending agent, dispersant, suspending agent, thickener, viscosity modifier, gelling agent, soothing agent, preservative, plasticizer,
- Formulation carriers such as transdermal absorption promoters, anti-aging agents, humectants, preservatives, and fragrances can be contained, and two or more formulation carrier additives can be appropriately selected and used.
- Solid preparations such as tablets bind the active ingredient to usual pharmacologically acceptable carriers or excipients such as lactose, sucrose, corn starch, crystalline cellulose, hydroxypropylcellulose, polyvinylpyrrolidone, hydroxypropylmethylcellulose, etc. And a disintegrant such as sodium carboxymethylcellulose and sodium starch glycolate, a lubricant such as stearic acid and magnesium stearate, or a preservative.
- pharmacologically acceptable carriers or excipients such as lactose, sucrose, corn starch, crystalline cellulose, hydroxypropylcellulose, polyvinylpyrrolidone, hydroxypropylmethylcellulose, etc.
- a disintegrant such as sodium carboxymethylcellulose and sodium starch glycolate, a lubricant such as stearic acid and magnesium stearate, or a preservative.
- the active ingredient is dissolved or suspended in a physiologically acceptable carrier such as water, saline, oil, aqueous dextrose, etc., and an emulsifier, stabilizer, osmotic pressure adjusting salt as an adjuvant, or You may contain a buffering agent as needed.
- a physiologically acceptable carrier such as water, saline, oil, aqueous dextrose, etc.
- an emulsifier, stabilizer, osmotic pressure adjusting salt as an adjuvant
- You may contain a buffering agent as needed.
- the pyrazole compound of the present invention and a pharmaceutically acceptable salt thereof are used for pharmaceutical use as described above, it is usually administered in the form of a preparation prepared by mixing with a pharmaceutical carrier, and the preparation is prepared according to a usual method.
- the pyrazole compound of the present invention and a pharmaceutically acceptable salt thereof as an active ingredient are 0.05 to 99% by weight, preferably 0.05 to 80% by weight, more preferably 0.1 to 70% by weight,
- the pharmaceutical composition preferably contains 0.1 to 50% by weight. These formulations may also contain other therapeutically valuable ingredients.
- the compound of the present invention can be produced by mixing 20 mg of the compound of Example 1, 100 mg of lactose, 25 mg of crystalline cellulose and 1 mg of magnesium stearate, and tableting the resulting mixture.
- the pyrazole compound of the present invention and a pharmaceutically acceptable salt thereof are an antidepressant, an anxiolytic drug, a schizophrenia drug, a dopamine receptor agonist, a Parkinson's disease drug, an antidepressant, for the purpose of enhancing its action. It can be used in combination with drugs (concomitant drugs) such as drugs, anticonvulsants, analgesics, hormone preparations, migraine drugs, adrenergic ⁇ receptor antagonists, dementia drugs, and mood disorder drugs. Moreover, it can be used in combination with drugs (concomitant drugs) such as antiemetics, sleep-inducing agents, and anticonvulsants for the purpose of suppressing the side effects.
- the administration timing of the compound of the present invention and the concomitant drug is not limited, and these may be administered to the administration subject at the same time or may be administered with a time difference. Moreover, it is good also as a mixture of this invention compound and a concomitant drug.
- the dose of the concomitant drug can be appropriately selected based on the clinically used dose.
- the compounding ratio of the compound of the present invention and the concomitant drug can be appropriately selected depending on the administration subject, administration route, target disease, symptom, combination and the like. For example, when the administration subject is a human, the concomitant drug may be used in an amount of 0.01 to 1000 parts by weight per 1 part by weight of the compound of the present invention.
- CDI 134 g, 0.83 mol
- THF 750 mL
- magnesium chloride 92.8 g, 0.98 mol
- ethyl potassium malonate 166 g, 0.98 mmol
- Step (ii) A solution of (cyclopentylmethyl) hydrazine dihydrochloride (82.1 g, 0.43 mol) and triethylamine (108 g, 1.1 mol) in ethanol (855 mL) was stirred at 55 ° C. IIa) (108.5 g, 0.41 mol) was added and the reaction mixture was stirred at 65 ° C. for about 1 hour. After cooling to room temperature, 5% potassium hydrogen sulfate (584 g) was added, water (876 mL) was further added, and ethanol was distilled off under reduced pressure until the total weight reached 1567 g.
- the concentrated residue was extracted with ethyl acetate (twice 1.4 L and 0.95 L), and after drying all organic layers with anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure.
- Ethyl acetate (332 mL) was added to the obtained concentrated residue, and the mixture was heated. After confirming dissolution of the solid, the mixture was cooled to 45 ° C., and seed crystals of compound (IIIa) were added.
- the mixed solution was stirred at an internal temperature of 43 to 45 ° C. for 1 hour, then n-hexane (332 mL) was added dropwise over 45 minutes while maintaining the internal temperature at 43 to 45 ° C., and the mixed solution was stirred as it was for 1 hour.
- Steps (ii) to (iii) Benzyl bromide (360 ⁇ L, 3.0 mmol) was added to a solution of compound (IIIb) (710 mg, 2.9 mmol) and potassium carbonate (418 mg, 3.0 mmol) in dimethylformamide (8.6 mL) at room temperature, and the reaction mixture was stirred at room temperature. Stir for 1 hour. The salt was filtered off, the solvent was distilled off under reduced pressure, and the resulting concentrated residue was purified by silica gel column chromatography (n-hexane / ethyl acetate) to obtain a crude product of compound (IVb).
- compound (IVb) was dissolved in tetrahydrofuran (14 mL) without purification, lithium aluminum hydride (131 mg, 3.4 mmol) was added little by little at room temperature, and the reaction mixture was stirred for 30 minutes. Water (150 ⁇ L), a 2 mol / L aqueous sodium hydroxide solution (150 ⁇ L) and water (450 ⁇ L) were added to the reaction solution, and the resulting precipitate was stirred at room temperature for 20 minutes, and the resulting precipitate was removed by filtration through celite.
- N-Boc-hydrazine (44.8 g, 339 mmol) was added to a solution of cyclohexylaldehyde (38 g, 339 mmol) in methanol (677 mL) at room temperature, and the reaction mixture was stirred at room temperature for 3 hours.
- the solvent was distilled off under reduced pressure, hexane (100 mL) was added to and suspended in the obtained concentrated residue, and the resulting precipitate was collected by filtration to obtain compound (1c) (55.9 g) as a white solid.
- Steps (ii) to (iii) Compound (Ic) (42.8 g, 189 mmol) was added to a solution of sodium cyanoborohydride (12.5 g, 189 mmol) in methanol (430 mL) and acetic acid (40 mL) while cooling with an ice bath and keeping the internal temperature at 15 ° C. or lower. Was added over 10 minutes, and the reaction mixture was stirred for 30 minutes and then stirred for 30 minutes while slowly warming to room temperature. The solution was adjusted to pH 8 with 2 mol / L aqueous sodium hydroxide solution (50 mL) while cooling in an ice bath again, and extracted with chloroform (300 mL and 50 mL twice).
- Step (iii) To a solution of compound (IIId) (377 mg, 1.3 mmol) in ethanol (2.5 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (1.9 mL) at room temperature, and the reaction solution was stirred at 50 ° C. for 35 minutes. did. Further, 4 mol / L hydrogen chloride 1,4-dioxane solution (0.3 mL) was added, and the reaction solution was stirred at 50 ° C. for 30 minutes. After cooling the reaction solution to room temperature, the solvent was distilled off under reduced pressure and diethyl ether was added to the resulting concentrated residue and decanted to obtain the title compound (IVd) (238 mg, 80%) as a white solid.
- Reference Examples 44 to 60 were produced in the same manner as in Reference Example 43 using the corresponding alkyl chloride, alkyl bromide, alkyl iodide, or alkyl methanesulfonate.
- Steps (i) to (iii) It was produced with reference to a method described in the literature (Teterahedron Letters, 23 (50), 5299.).
- a mixed solution of furan (3.0 mL, 41 mmol), ethyl acrylate (3.00 g, 30 mmol) and zinc iodide (2.87 g, 9.0 mmol) was stirred at 40 ° C. for 1 day. After diluting with ethyl acetate and filtering through a mixture of silica gel and celite, the filtrate was concentrated to obtain a crude product (6.34 g) of compound (If).
- Step (iv) Methanesulfonyl chloride (2.2 mL, 28 mmol) was added to a solution of compound (IIIf) (2.40 g, 19 mmol) and triethylamine (5.2 mL, 38 mmol) in dichloromethane (30 mL) at 0 ° C., and the reaction solution was added at 0 ° C. Stir for minutes. Saturated aqueous sodium hydrogen carbonate was added and the mixture was extracted with chloroform. The entire organic layer was dried over anhydrous sodium sulfate, and the solvent was concentrated under reduced pressure.
- the concentrated residue was dissolved in ethanol (19 mL), hydrazine monohydrate (5.63 g, 113 mmol) was added, and the reaction mixture was stirred at room temperature for 5 days and at 60 ° C. for 8 hours. After cooling to room temperature, the solvent was evaporated under reduced pressure, saturated aqueous sodium hydrogen carbonate was added to the resulting concentrated residue, and the mixture was extracted with chloroform. All organic layers were dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The obtained concentrated residue was dissolved in tetrahydrofuran (16 mL), 4 mol / L hydrogen chloride 1,4-dioxane solution (16 mL) was added at room temperature, and the mixed solution was stirred at room temperature overnight.
- Step (iii) Lithium borohydride (70 mg, 3.2 mmol) was added to a solution of compound (IIg) (199 mg, 1.1 mmol) in tetrahydrofuran (10 mL) at room temperature, and the reaction mixture was stirred at room temperature for 1 hour.
- the reaction solution was added dropwise to an aqueous ammonium chloride solution at 0 ° C. and extracted with ethyl acetate.
- (IIIg) 120 mg, 78%) was obtained.
- Step (iv) Methanesulfonyl chloride (366 ⁇ L, 4.7 mmol) was added to a solution of compound (IIIg) (440 mg, 3.0 mmol) and triethylamine (878 ⁇ L, 6.3 mmol) in dichloromethane (9 mL) at 0 ° C., and the reaction solution was stirred at 0 ° C. for 30 minutes. Stir for minutes. Saturated aqueous sodium hydrogen carbonate was added and the mixture was extracted with chloroform. The entire organic layer was dried over anhydrous sodium sulfate, and the solvent was concentrated under reduced pressure.
- the concentrated residue was dissolved in ethanol (3 mL), hydrazine monohydrate (946 mg, 19 mmol) was added, and the reaction mixture was stirred at room temperature overnight and at 100 ° C. for 4 hours. After cooling to room temperature, the solvent was evaporated under reduced pressure, saturated aqueous sodium hydrogen carbonate was added to the resulting concentrated residue, and the mixture was extracted with chloroform. All organic layers were dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure.
- Steps (ii) to (iii) Compound (Ih) (10 g, 58 mmol), 2- (tetrahydropyranyl) methyl bromide (10 mL, 81 mmol), potassium hydroxide (4.89 g, 87 mmol) and tetrabutylammonium sulfate (1.97 g, 5.8 mmol)
- the toluene (200 mL) solution was heated to reflux for 9 hours.
- Water (200 mL) was added to the reaction mixture for liquid separation, and the aqueous layer was extracted with ethyl acetate (200 mL). All organic layers were dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure.
- Reference Example 68 (3-Methylbutyl) hydrazine sulfate (3-Methylbutyl) hydrazine sulfate
- the compound described in Reference Example 57 (3.50 g, 20 mmol) was added to 10% aqueous potassium carbonate solution, and the mixture was extracted with chloroform (30 mL ⁇ 2 + 10 mL). The chloroform layer was washed with saturated brine, dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure to give (hydrazine free form) (470 mg) as a yellow oil.
- Step (i) To a solution of compound (Ihh) (637 mg, 3.8 mmol) synthesized by the method described in the literature (Organometallics, 6 (10), 1987, 2079) in tetrahydrofuran (8.7 mL) at room temperature is borane-tetrahydrofuran complex (1.1 mol / L, 8.7 mL, 9.6 mmol) was added and the reaction mixture was stirred at room temperature overnight. Methanol (5 mL) was added, and when foaming stopped, the solvent was distilled off under reduced pressure. The resulting concentrated residue was dissolved in a mixed solution of chloroform and methanol (9: 1), filtered through silica gel, and then the filtrate was concentrated.
- Reference Examples 71 to 72 were produced in the same manner as in Reference Example 43 using the corresponding alkyl chloride, alkyl bromide, and alkyl methanesulfonate.
- Step (i) Compound (Ikk) (1.5 g) was added to a suspension of magnesium (729 mg, 33 mmol) in tetrahydrofuran (3 mL). Subsequently, a solution of compound (Ikk) (3.45 g) in anhydrous tetrahydrofuran (40 mL) was added dropwise and stirred for 40 minutes. Dry ice (5 g) was added to the reaction mixture, and the reaction mixture was stirred for 3 hours while slowly warming to room temperature. 1N Hydrochloric acid was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure to give a crude product (3.80 g) of compound (IIkk). Obtained as a colorless oil.
- the obtained concentrated residue (4.35 g) was dissolved in ethanol (20 mL) together with hydrazine monohydrate (6.0 g, 120 mmol) and stirred at 50 ° C. for 3 hours. After cooling to room temperature, water was added and the mixture was extracted with chloroform. The organic layer was washed with water and then dried over anhydrous sodium sulfate. A 4N-hydrogen chloride-1,4-dioxane solution was added to the organic layer, the solvent was distilled off under reduced pressure, and 2-propanol (10 mL) and n-hexane (100 mL) were added to the resulting concentrated residue, followed by ultrasonic irradiation. .
- Reference Examples 74 to 78 were produced in the same manner as in Reference Example 1 using the compounds described in Reference Examples 69 to 73.
- Reference Example 74 tert-butyl ⁇ [1- (2-cyclopropylethyl) -5-oxo-4,5-dihydro-1H-pyrazol-3-yl] methyl ⁇ methylcarbamate
- tert-Butyl ⁇ [1- (2-cyclopropylethyl) -5-oxo-4,5-dihydro-1H-pyrazol-3-yl] -methyl ⁇ methylcarbamate
- Step (i) Compound (Imm) (4) synthesized in a suspension solution of lithium aluminum hydride (1.83 g, 48 mmol) in anhydrous tetrahydrofuran (mL) by the method described in the literature (Journal of Organic Chemistry, 69 (3), 2004, 997) .16 g, 24 mmol) in anhydrous tetrahydrofuran (mL) was added dropwise with heating under reflux, and the reaction mixture was heated under reflux for 1 hour. A saturated aqueous sodium sulfate solution (7.3 mL) was added while cooling in an ice bath, and the mixture was stirred for 2 hours while slowly warming to room temperature.
- Steps (ii) to (iii) Methanesulfonyl chloride (692 ⁇ L, 8.9 mmol) was added to a solution of compound (II mm) (0.97 g, 7.5 mmol) and triethylamine (1.56 g, 11 mmol) in dichloromethane (15 mL) with ice cooling over 5 minutes. The mixture was stirred for 20 minutes under ice cooling. Water was added and the mixture was extracted with chloroform. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure.
- Steps (i) to (iii) Compound (Inn) (2.00 g, 11.9 mmol) was added dropwise to a suspension of lithium aluminum hydride (903 mg, 23.8 mmol) in tetrahydrofuran (40 mL) under ice cooling, and the reaction mixture was stirred for 1 hour under ice cooling. did. Water (0.9 mL) and 15% aqueous sodium hydroxide solution (0.9 mL) are added to the reaction mixture, water (4.5 mL) is further added, and the mixture is stirred while slowly warming to room temperature. Separated.
- Reference Examples 83 to 84 were produced in the same manner as in Reference Example 31.
- Reference Example 83 tert-Butyl methyl ⁇ 1- [1- (3-methylbutyl) -5-oxo-4,5-dihydro-1H-pyrazol-3-yl] ethyl ⁇ carbamate
- reaction mixture was added dropwise to a mixed solution of 1N-hydrochloric acid (600 mL) and water (500 mL) under ice-cooling while maintaining the internal temperature at 20 ° C. or lower, followed by stirring for 1 hour while maintaining the internal temperature at 5 ° C.
- the precipitate was collected by filtration and washed with cold water (100 mL).
- Acetonitrile (200 mL) was added to crude crystals (44.8 g) of the title compound obtained by drying the obtained solid under reduced pressure at 50 ° C., stirred for 1 hour at 75 ° C., and then cooled to room temperature for 3 hours. Stirring was continued, and ice cooling was further performed for 1 hour.
- Steps (i) to (iii) Compound (IIIb ′) (710 mg, 2.9 mmol) and potassium carbonate (418 mg, 3.0 mmol) prepared in the same manner as in step (i) of Reference Example 31 using benzylhydrazine and compound (Ib) in DMF ( To the solution (8.6 mL), benzyl bromide (360 ⁇ L, 3.0 mmol) was added at room temperature, and the reaction mixture was stirred at room temperature overnight. The salt was filtered off, and the solvent was distilled off under reduced pressure to obtain a crude product of compound (IVb).
- Step (iv) Methanesulfonyl chloride (239 ⁇ L, 3.1 mmol) was added to a solution of compound (Vb) (607 mg, 2.1 mmol) and triethylamine (282 ⁇ L, 2.0 mmol) in dichloromethane (6.2 mL) at 0 ° C., and the reaction mixture was left as it was. Stir for minutes. Subsequently, 40% methylamine-methanol solution (6.2 mL) was added little by little, and the reaction mixture was stirred overnight while slowly warming to room temperature. Saturated aqueous sodium hydrogen carbonate was added and the mixture was extracted with chloroform.
- Examples 2-7 The compounds of Examples 2 to 7 were produced as shown in Table 1 by the same method as Example 1.
- Example 8 1- ⁇ 1-benzyl-5-[(2-chlorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 1-Benzyl-5-[(2-chlorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride
- Step (ii) To a chloroform (0.5 mL) solution of compound (IIk) (24 mg, 0.054 mmol) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (0.5 mL) at room temperature, and the reaction solution was stirred at room temperature for 30 minutes. . The solvent was distilled off under reduced pressure, diethyl ether was added to the concentrated residue and decanted, and the resulting solid was distilled off under reduced pressure to obtain the title compound (IIIk) (20 mg, 97%) as a white powder.
- Examples 9-13 Using the corresponding benzyl bromide or benzyl chloride, the compounds of Examples 9 to 13 were produced by the same method as in Example 8 as shown in Table 2.
- Examples 14-19 Using the compound obtained in Reference Example 37 and the corresponding benzyl bromide or benzyl chloride, the compounds of Examples 14 to 19 were produced as shown in Table 3 by the same method as in Example 8.
- Examples 20-40 According to the following general production method, the compounds of Examples 20 to 40 were produced as shown in Table 4.
- General Production Method of Compound (IIIm) Compound (IIIm) was produced using the compound (Im) obtained in Reference Example 4 and the corresponding benzyl bromide or benzyl chloride. Step (i) was performed by any of methods A, B, and C.
- Step (i) Alkylation reaction Method A: To a solution of the compound (Im) (20 mg, 0.063 mmol) prepared in Reference Example 4 and cesium carbonate (1.5 equivalent, 31 mg, 0.095 mmol) in dimethylformamide (0.2 mL) at 0 ° C., the corresponding benzyl chloride ( 1.5 equivalents, 0.095 mmol) was added and the reaction mixture was stirred for 2 days while slowly warming to room temperature. After removing the salt by filtration, the solvent was distilled off under reduced pressure to obtain a crude product of compound (IIm).
- Method B A solution of compound (Im) (100 mg, 0.31 mmol) and silver oxide (79 mg, 0.34 mmol) in acetonitrile (1 mL) at the corresponding benzyl bromide (1.5 eq, 0.46 mmol) in acetonitrile (2 mL) And the reaction mixture was stirred at room temperature for 2 hours. Ethyl acetate was added to the solution, the salt was filtered off, and the filtrate was concentrated to obtain a crude product of compound (IIm).
- Step (ii) DeN-Bocation Reaction
- Compound (IIm) was dissolved in chloroform (1 mL), 4 mol / L hydrogen chloride 1,4-dioxane solution (2 mL) was added at room temperature, and the reaction mixture was stirred for 2 hours. The solvent was distilled off under reduced pressure. Diethyl ether was added to the obtained residue, and after decantation, the obtained solid was dried under reduced pressure to obtain the hydrochloride of compound (IIIm).
- the concentrated residue is purified by reverse phase liquid chromatography (0.05% trifluoroacetic acid-acetonitrile / 0.05% trifluoroacetic acid / water) as necessary, and the fraction of the obtained compound (IIIm) is usually purified.
- the free base of compound (IIIm) was obtained by making it free by the method of.
- Reverse phase liquid chromatography was performed, for example, under the following conditions.
- Apparatus ParallelFlex (registered trademark) (Biotage, Inc) Column: YMC Combiprep ODS-A 50 ⁇ 30 mm D.
- Moving bed A liquid 0.07 trifluoroacetic acid-acetonitrile
- B liquid 0.1% trifluoroacetic acid-H 2 O
- Moving bed flow rate 40 mL / min
- Examples 41-91 Using the compound obtained in Reference Example 4 and the corresponding benzyl bromide or benzyl chloride, the compounds of Examples 41 to 91 were produced as shown in Table 5 by the method described in Examples 20 to 40 above.
- Examples 92-114 Using the compound obtained in Reference Example 5 and the corresponding benzyl bromide or benzyl chloride, the compounds of Examples 92 to 114 were produced as shown in Table 6 by the method described in Examples 20 to 40 above.
- Examples 115-134 Compounds of Examples 115-134 as shown in Table 7 by the methods described in Examples 20-40 above using the compounds obtained in Reference Examples 2, 3 or 9-13 and the corresponding benzyl bromides or benzyl chlorides Manufactured.
- Examples 135-191 Using the compound (IIIa) obtained in Reference Example 1 and the corresponding benzyl bromide or benzyl chloride, the compounds of Examples 135 to 191 were produced as shown in Table 8 by the method described in Examples 20 to 40 above.
- Example 138 1- ⁇ 5-[(2-chlorobenzyl) oxy] -1- (cyclopentylmethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine trifluoroacetate 1- ⁇ 5-[(2-Chlorobenzyl) oxy] -1- (cyclopentylmethyl) -1H-pyrazol-3-yl ⁇ -N-methyl-methanamine trifluoroacetate
- Example 192 1- [5- (Benzyloxy) -1- (2-cyclopentylethyl) -1H-pyrazol-3-yl] -N-methylmethanamine 1- [5- (Benzyloxy) -1- (2-cyclopentylethyl) -1H-pyrazol-3-yl] -N-methyl-methanamine
- the title compound was produced in the same manner as in the compounds described in Examples 20 to 40 using the compound obtained in Reference Example 14.
- method B described in the general production method of Examples 20 to 40 was used.
- Example 193 1- ⁇ 1- (2-cyclopentylethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine 1- ⁇ 1- (2-Cyclopentylethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine The title compound was prepared in the same manner as in Example 192.
- Example 194 1- ⁇ 1- (2-cyclopentylethyl) -5-[(2,4-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine 1- ⁇ 1- (2-Cyclopentylethyl) -5-[(2,4-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine The title compound was prepared in the same manner as in Example 192.
- Examples 195-197 Using the compound obtained in Reference Example 36 and the corresponding benzyl bromide, the compounds of Examples 195 to 197 were produced as shown in Table 9 by the method described in Examples 20 to 40 above. The benzylation reaction in step (i) was performed using Method B described in the general production method of Examples 20-40.
- Steps (iii) to (iv) Benzyl chloride (41 mg, 0.33 mmol) was added to a solution of compound (IIIn) (100 mg, 0.30 mmol) and cesium carbonate (146 mg, 0.45 mmol) in acetonitrile (1.5 mL) at room temperature, and the reaction mixture was stirred at room temperature for 17 hours. Stir for hours. The reaction mixture was diluted with ethyl acetate, the salt was filtered off, and the filtrate was evaporated under reduced pressure.
- Examples 199-240 Examples 199 to 240 were produced as shown in Table 10 by the same method as in Example 198 using the corresponding benzyl chloride or benzyl bromide.
- Examples 241 to 275 Using the compounds obtained in Reference Examples 15 to 26 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 241 to 275 were produced as shown in Table 11 by the same method as described in Examples 20 to 40. did. The benzylation in step (i) was performed using methods B or C described in the general production methods of Examples 20-40.
- Example 261 1- ⁇ 5-[(3-Chlorobenzyl) oxy] -1- (2-ethylbutyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(3-Chlorobenzyl) oxy] -1- (2-ethylbutyl) -1H-pyrazol-3-yl ⁇ -N-methyl-methanamine hydrochloride Obs MS [M + 1]: 336.4
- Example 262 1- ⁇ 5-[(2,5-difluorobenzyl) oxy] -1- (2-ethylbutyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(2,5-Difluorobenzyl) oxy] -1- (2-ethylbutyl) -1H-pyrazol-3-yl ⁇ -N-methyl-methanamine hydrochloride Obs MS [M + 1]: 338.4
- Example 263 1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- (2-ethylbutyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- (2-ethylbutyl) -1H-pyrazol-3-yl ⁇ -N- methylmethanamine hydrochloride Obs MS [M + 1]: 354.4
- Example 264 1- [5- (Benzyloxy) -1- (3,3-dimethylbutyl) -1H-pyrazol-3-yl] -N-methylmethanamine hydrochloride 1- [5- (Benzyloxy) -1- (3,3-dimethylbutyl) -1H-pyrazol-3-yl] -N-methyl-methanamine hydrochloride 1 H-NMR (300 MHz, DMSO-d 6 ) ⁇ : 0.88 (9H, s), 1.53-1.58 (2H, m), 2.52 (3H, br s), 3.88-3.98 (4H, m), 5.18 ( 2H, s), 5.89 (1H, s), 7.37-7.48 (5H, m), 8.94 (2H, br s). Obs MS [M + 1]: 302.5
- Example 265 1- ⁇ 5-[(3-Chlorobenzyl) oxy] -1- (3,3-dimethylbutyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(3-Chlorobenzyl) oxy] -1- (3,3-dimethylbutyl) -1H-pyrazol-3-yl ⁇ -N-methyl-methanamine hydrochloride 1 H-NMR (300 MHz, DMSO-d 6 ) ⁇ : 0.90 (9H, s), 1.53-1.59 (2H, m), 2.52 (3H, br s), 3.90-3.97 (4H, m), 5.20 ( 2H, s), 5.90 (1H, br s), 7.40-7.47 (3H, m), 7.53 (1H, br s), 9.04 (2H, br s). Obs MS [M + 1]: 336.4
- Example 271 [5- (Benzyloxy) -1- (4,4,4-trifluorobutyl) -1H-pyrazol-3-yl] -N-methylmethanamine hydrochloride 1- [5- (Benzyloxy) -1- (4,4,4-trifluorobutyl) -1H-pyrazol-3-yl] -N-methyl-methanamine hydrochloride 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 2.04 (4H, m), 2.62 (3H, s), 4.01 (2H, m), 4.09 (2H, br s), 5.10 (2H, s), 6.15 (1H, s), 7.39 (5H, m), 9.81 (2H, br s). Obs MS [M + 1]: 328.3
- Example 272 1- ⁇ 5-[(2,5-difluorobenzyl) oxy] -1- (4,4,4-trifluorobutyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(2,5-Difluorobenzyl) oxy] -1- (4,4,4-trifluorobutyl) -1H-pyrazol-3-yl ⁇ - N-methylmethanamine hydrochloride 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 2.04 (4H, m), 2.62 (3H, s), 4.01 (2H, m), 4.09 (2H, br s), 5.13 (2H, s), 6.18 (1H, br s), 7.03-7.09 (2H, m), 7.14 (1H, m), 9.86 (2H, br s) Obs MS [M + 1]: 364.2
- Examples 276-282 Using the compound obtained in Reference Example 1 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 276 to 282 were prepared as shown in Table 12 by the method described in Examples 20 to 40 above. Step (i) was performed by Method C described in General Production Methods of Examples 20-40.
- Example 283 N-methyl-1- ⁇ 1- (3-methylbutyl) -5- [2,4,5-trifluorobenzyl] oxy] -1H-pyrazol-3-yl ⁇ methanamine hydrochloride N-Methyl-1- ⁇ 1- (3-methylbutyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ methanamine hydrochloride The title compound was prepared in the same manner as in Example 280 using the compound described in Reference Example 24.
- Example 284 1- ⁇ 1- (3,3-Dimethylbutyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 1- (3,3-Dimethylbutyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ - N-methylmethanamine hydrochloride The title compound was produced in the same manner as in Example 280 using the compound obtained in Reference Example 22.
- Example 285 1- ⁇ 1- (4-methoxybenzyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 1- (4-Methoxybenzyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine hydrochloride The title compound was prepared in the same manner as in Example 198.
- Example 286 N-methyl-1- ⁇ 1- (4-methylbenzyl) -5- [2,4,5-trifluorobenzyl] oxy] -1H-pyrazol-3-yl ⁇ methanamine hydrochloride N-Methyl-1- ⁇ 1- (4-methylbenzyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol- 3-yl ⁇ methanamine hydrochloride The title compound was prepared in the same manner as in Example 198.
- Example 287 2-( ⁇ 3-[(Methylamino) methyl] -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-1-yl ⁇ methyl) benzonitrile hydrochloride 2-( ⁇ 3-[(Methylamino) methyl] -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-1- yl ⁇ methyl) benzonitrile hydrochloride The title compound was prepared in the same manner as in Example 198.
- Example 288 1- [5- (Benzyloxy) -1- (1-cyclopentylethyl) -1H-pyrazol-3-yl] -N-methylmethanamine hydrochloride 1- [5- (Benzyloxy) -1- (1-cyclopentylethyl) -1H-pyrazol-3-yl] -N-methyl-methanamine hydrochloride
- Step (ii) Compound (IIr) is dissolved in chloroform (0.6 mL), 4 mol / L hydrogen chloride 1,4-dioxane solution (0.6 mL) is added at room temperature, and the reaction mixture is stirred at room temperature for 30 minutes, and then the solvent is distilled under reduced pressure. Left. Diethyl ether was added to the obtained residue and decanted, and the obtained solid was dried under reduced pressure to obtain the title compound (IIIr) (26 mg, 95%) as a light brown powder.
- Examples 289 to 291 The compounds of Examples 289 to 291 were produced in the same manner as in Example 288 using the ketone compound obtained in Reference Example 6 and the corresponding benzyl chloride.
- Examples 292 to 295 The compounds of Examples 292 to 295 were produced from the compound obtained in Reference Example 7 and the corresponding benzyl chloride or benzyl bromide in the same manner as in Example 288.
- Examples 296-308 Using the compound obtained in Reference Example 7 and the corresponding benzyl bromide or benzyl chloride, the compounds of Examples 296 to 308 as shown in Table 13 were produced in the same manner as described in Examples 20 to 40 above.
- Examples 309 and 310 The compounds of Examples 309 and 310 were produced in the same manner as in Example 288.
- Examples 311 to 327 Using the compounds obtained in Reference Examples 31 to 35 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 311 to 327 were produced as shown in Table 14 by the same method as described in Examples 20 to 40. .
- the benzylation in step (i) was carried out in the same manner as in Method C described in the general production methods of Examples 20-40.
- Step (iii) Lithium aluminum hydride (7 mg, 0.18 mmol) was added to a solution of compound (IIIs) (26 mg, 0.054 mmol) in tetrahydrofuran (0.3 mL) at 0 ° C., and the reaction mixture was stirred for 10 minutes, and further at 0 ° C. Lithium aluminum hydride (12 mg, 0.32 mmol) was added, the reaction mixture was stirred for 10 minutes, then lithium aluminum hydride (10 mg, 0.31 mmol) was added at 0 ° C., and the reaction mixture was stirred for 40 minutes, and then saturated aqueous sodium sulfate solution Was added. After filtration and concentration of the filtrate, the resulting concentrated residue was purified by silica gel column chromatography (ethyl acetate) to obtain compound (IVs) (29 mg, quantitative).
- Step (iv) To a solution of compound (IVs) (29 mg, mmol) in chloroform (0.5 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (0.5 mL) at room temperature, and the reaction solution was stirred at room temperature for 1 hour. The solvent was distilled off under reduced pressure to obtain the title compound (Vs) (8.3 mg, 40%) as a brown oil.
- Example 329 2-Cyclohexyl-2- ⁇ 5- (2,5-difluorobenzyl) oxy] -3-[(methylamino) methyl] -1H-pyrazol-1-yl ⁇ -2-cyclohexylethanol hydrochloride
- the title compound was obtained in the same manner as in Example 328.
- Example 330 [5- (Benzyloxy) -1- (1-cyclohexyl-2-fluoroethyl) -1H-pyrazol-3-yl] -N-methylmethanamine hydrochloride 1- [5- (Benzyloxy) -1- (1-cyclohexyl-2-fluoroethyl) -1H-pyrazol-3-yl] -N-methyl-methanamine hydrochloride
- Step (ii) To a chloroform (0.4 mL) solution of compound (It) (31 mg, 0.070 mmol) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (0.5 mL) at room temperature, and the reaction solution was stirred at room temperature for 1 hour. .
- the title compound (IIt) 24 mg, 90% was obtained as a white powder by adding diethyl ether to the concentrated residue obtained by evaporating the solvent under reduced pressure and decanting.
- Examples 331 to 339 Using the compounds obtained in Reference Examples 27 to 30 and the corresponding benzyl bromide or benzyl chloride, the compounds of Examples 331 to 339 were produced as shown in Table 15 by the method described in Examples 20 to 40 above.
- Example 340 [5- (Benzyloxy) -1- (3,4-dihydro-2H-chromen-2-ylmethyl) -1H-pyrazol-3-yl] -N-methylmethanamine hydrochloride 1- [5- (Benzyloxy) -1- (3,4-dihydro-2H-chromen-2-ylmethyl) -1H-pyrazol-3-yl] -N-methylmethanamine hydrochloride
- Example 341 1- ⁇ 5-[(3-Chlorobenzyl) oxy] -1- (3,4-dihydro-2H-chromen-2-ylmethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(3-Chlorobenzyl) oxy] -1- (3,4-dihydro-2H-chromen-2-ylmethyl) -1H- pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride The title compound was obtained in the same manner as described in Example 340.
- Example 342 N-( ⁇ 1- (cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ methyl) cyclopropanamine N-( ⁇ 1- (Cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -methyl) cyclopropanamine
- the title compound (39 mg, 52%) was obtained in the same manner as in steps (i) to (iv) of Reference Example 36 using lithium borohydride instead of lithium aluminum hydride in Step (iii) of Reference Example 36. It was.
- Example 347 1- ⁇ 1- (cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ methanamine hydrochloride 1- ⁇ 1- (Cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -methanamine hydrochloride
- Steps (i) to (iii) In a solution of compound (Iw) (190 mg, 0.59 mmol) and triethylamine (164 ⁇ L, 1.2 mmol) obtained in the same manner as in the method described in steps (i) to (iii) of Example 1 in dichloromethane (3 mL). Methanesulfonyl chloride (68 ⁇ L, 0.88 mmol) was added at 0 ° C., the reaction mixture was stirred at 0 ° C. for 25 minutes, methanesulfonyl chloride (9 ⁇ L, 0.12 mmol) was further added, and the mixture was stirred at 0 ° C. for 5 minutes.
- Example 348 1- ⁇ 5-[(2,5-difluorobenzyl) oxy] -1- (3-methylbutyl) -1H-pyrazol-3-yl ⁇ methanamine hydrochloride 1- ⁇ 5-[(2,5-Difluorobenzyl) oxy] -1- (3-methylbutyl) -1H-pyrazol-3-yl ⁇ -methanamine hydrochloride The title compound was prepared in the same manner as in Example 347.
- Example 349 1- ⁇ 1- (cyclohexylmethyl) -5- [difluoro (phenyl) methoxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 1- (Cyclohexylmethyl) -5- [difluoro (phenyl) methoxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine hydrochloride
- Step (ii) To a solution of compound (IIIx) (47 mg, 0.11 mmol) in chloroform (1 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (1 mL) at room temperature, and the reaction solution was stirred for 30 minutes. The solution was concentrated under reduced pressure to give the title compound (IVx) (43 mg, quantitative) as a yellow oil.
- Example 350 1- ⁇ 5- [1- (3-Chlorophenyl) ethoxy] -1- (cyclohexylmethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5- [1- (3-Chlorophenyl) ethoxy] -1- (cyclohexylmethyl) -1H-pyrazol-3-yl ⁇ -N- methylmethanamine hydrochloride
- Example 351 1- ⁇ 1- (cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -4-fluoro-1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 1- (Cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -4-fluoro-1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride
- Step (iii) To a solution of compound (IIIy) (19 mg, 0.040 mmol) in chloroform (0.5 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (1 mL) at room temperature, and the reaction solution was stirred for 30 minutes. The solution was concentrated under reduced pressure to give the title compound (17 mg, quantitative) as a white solid.
- Example 352 1- ⁇ 4-Chloro-1- (cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 4-Chloro-1- (cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride
- Step (ii) To a solution of compound (IIz) (33 mg, 0.067 mmol) in chloroform (0.5 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (1 mL) at room temperature, and the reaction solution was stirred for 30 minutes. The solution was concentrated under reduced pressure to give the title compound (IIIz) (28 mg, quantitative) as a colorless oil.
- Example 353 1- ⁇ 4-Bromo-1- (cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 4-Bromo-1- (cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3- yl ⁇ -N-methylmethanamine hydrochloride
- N-bromosuccinimide (174 mg, 0.98 mmol) was added to a solution of compound (IIy) (400 mg, 0.89 mmol) in DMF (4 mL) under ice cooling, and the reaction mixture was slowly warmed to room temperature overnight. Stir. Water (40 mL) was added and the mixture was extracted with ethyl acetate. The entire organic layer was dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure.
- Step (ii) To a solution of compound (IIaa) (25 mg, 0.047 mmol) in chloroform (0.5 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (1 mL) at room temperature, and the reaction solution was stirred for 30 minutes. The solution was concentrated under reduced pressure to give the title compound (IIIaa) (23 mg, quantitative) as a colorless oil.
- Example 354 1- ⁇ 1- (cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -4-methyl-1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 1- (Cyclohexylmethyl) -5-[(2,5-difluorobenzyl) oxy] -4-methyl-1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride
- Step (ii) To a solution of compound (IIbb) (23 mg, 0.049 mmol) in chloroform (0.5 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (1 mL) at room temperature, and the reaction solution was stirred for 30 minutes. The solution was concentrated under reduced pressure to obtain the title compound (IIIbb) (19 mg, 97%) as a white solid.
- Step (iii) To a solution of compound (IIIcc) (20 mg, 0.047 mmol) in chloroform (0.5 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (1 mL) at room temperature, and the reaction mixture was stirred for 30 minutes. The solvent was distilled off under reduced pressure, diethyl ether was added to the concentrated residue, followed by decantation. The obtained solid was dried under reduced pressure to obtain the title compound (IVcc) (19 mg, quantitative) as a white solid.
- Example 356 1- [5- (Benzylsulfanyl) -1- (3-phenylpropyl) -1H-pyrazol-3-yl] -N-methylmethanamine hydrochloride 1- [5- (Benzylsulfanyl) -1- (3-phenylpropyl) -1H-pyrazol-3-yl] -N-methyl-methanamine hydrochloride The title compound was prepared in the same manner as in Example 355.
- Step (ii) To a solution of cyclohexylmethyl hydrazine dihydrochloride (948 mg, 4.7 mmol) and potassium carbonate (1.43 g, 19.4 mmol) in ethanol (10 mL) at room temperature, the compound (IIdd) (1.00 g, 4, 7 mmol) in ethanol ( 15 mL) solution was added at room temperature and the reaction mixture was stirred at room temperature for 1 hour and then at 50 ° C. for 2 hours. After cooling to room temperature, water was added to the mixture and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium hydrogen carbonate and saturated brine, and dried over anhydrous sodium sulfate.
- Step (iii) To a solution of compound (IIIdd) (88 mg, 0.27 mmol) and pyridine (65 mg, 0.82 mmol) in dichloromethane (3 mL) at room temperature was added benzoyl chloride (46 mg, 0.33 mmol) and the reaction mixture was stirred at room temperature overnight. did. The reaction solution was diluted with ethyl acetate, washed with 5% aqueous potassium hydrogen sulfate solution, saturated aqueous sodium hydrogen carbonate and saturated brine, and dried over anhydrous sodium sulfate.
- Step (iv) Borane-dimethyl sulfide complex (0.59 mmol) was added to a solution of compound (IVdd) (63 mg, 0.15 mmol) in THF (3 mL) at 0 ° C., and the reaction solution was stirred at 70 ° C. for 3.5 hours. The reaction solution was cooled to 0 ° C., methanol was added, and the mixture was heated to reflux for 30 minutes. After cooling to room temperature, the solvent was distilled off under reduced pressure, 5% aqueous potassium hydrogen sulfate solution was added to the resulting concentrated residue, and the mixture was extracted with ethyl acetate.
- Step (ii) To a solution of compound (Iee) (41 mg, 0.097 mmol) in chloroform (0.5 mL) was added 4 mol / L hydrogen chloride 1,4-dioxane solution (1 mL) at room temperature, and the reaction solution was stirred at room temperature for 1 hour. The solvent was distilled off under reduced pressure to obtain the title compound (IIee) (44 mg, quantitative) as a colorless oil.
- Examples 359 to 368 were produced as shown in Table 16 by the same method as in Example 198 using the corresponding benzyl chloride or benzyl bromide.
- Example 369-402 Using the compounds described in Reference Examples 20, 21, 22, 24 and 78 and the corresponding benzyl chloride or benzyl bromide, Example 369 as shown in Table 17 by the same method as described in Examples 20 to 40 ⁇ 402 compounds were prepared.
- Example 375 1- ⁇ 1- (2,2-dimethylpropyl) -5-[(4-fluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine trifluoroacetate 1- ⁇ 1- (2,2-Dimethylpropyl) -5-[(4-fluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine trifluoroacetate 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 0.92 (9H, s), 2.67 (3H, s), 3.73 (2H, s), 4.08 (2H, s), 5.01 (2H, s), 5.82 ( 1H, s), 7.08 (2H, m), 7.35 (2H, m), 9.39 (2H, br s).
- Example 376 1- ⁇ 5-[(2,4-Difluorobenzyl) oxy] -1- (2,2-dimethylpropyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine 1- ⁇ 5-[(2,4-Difluorobenzyl) oxy] -1- (2,2-dimethylpropyl) -1H-pyrazol-3-yl ⁇ -N- methylmethanamine 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 0.93 (9H, s), 1.92 (1H, br s), 2.46 (3H, s), 3.67 (2H, s), 3.69 (2H, s), 5.05 (2H, s), 5.60 (1H, s), 6.83-6.94 (2H, m), 7.40 (1H, m).
- NH
- Example 378 1- ⁇ 1- (2,2-dimethylpropyl) -5-[(4-fluoro-2-methylbenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine trifluoroacetate 1- ⁇ 1- (2,2-Dimethylpropyl) -5-[(4-fluoro-2-methylbenzyl) oxy] -1H-pyrazol-3- yl ⁇ -N-methylmethanamine trifluoroacetate 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 0.91 (9H, s), 2.35 (3H, s), 2.71 (3H, s), 3.70 (2H, s), 4.11 (2H, s), 5.00 ( 2H, s), 5.87 (1H, s), 6.87-6.96 (2H, m), 7.30 (1H, m), 9.48 (2H, s).
- Example 380 1- ⁇ 1- (2,2-dimethylpropyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine 1- ⁇ 1- (2,2-Dimethylpropyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 0.93 (9H, s), 2.64 (3H, s), 3.74 (2H, s), 4.13 (2H, s), 5.08 (2H, s), 6.24 ( 1H, s), 7.00 (1H, m), 7.30 (1H, m), 9.88 (2H, br s).
- Examples 403 to 406 Using the compound described in Reference Example 77 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 403 to 406 were produced as shown in Table 18 by the same method as described in Examples 20 to 40.
- Examples 407-426 Using the compounds described in Reference Examples 2, 3 and 74 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 407 to 426 as shown in Table 19 were prepared in the same manner as described in Examples 20 to 40. Manufactured.
- symbols f to h represent groups of the following formulae.
- Examples 427-434 Using the compounds described in Reference Examples 69 and 70 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 427 to 434 were produced as shown in Table 20 by the same method as described in Examples 20 to 40. .
- Example 435 (2- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -3-[(methylamino) methyl] -1H-pyrazol-1-yl ⁇ ethyl) cyclopentanol hydrochloride 1- (2- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -3-[(methylamino) methyl] -1H-pyrazol-1-yl ⁇ ethyl) cyclopentanol hydrochloride
- Step (i) 2-Fluoro-5-chlorobenzyl chloride (70 ⁇ L, 70 mL) was added to a solution of the compound described in Reference Example 79 (IVmm) (100 mg, 0.30 mmol) and cesium carbonate (163 mg, 0.50 mmol) in acetonitrile (1.2 mL) at room temperature. 0.44 mmol) was added and the reaction mixture was stirred at room temperature for 4 days.
- Step (ii) To a chloroform (0.4 mL) solution of compound (Irr) (21 mg, 0.044 mmol) was added 4N-hydrogen chloride-1,4-dioxane solution (0.6 mL) at room temperature, and the reaction mixture was stirred at room temperature for 50 minutes. . The solvent was distilled off under reduced pressure, diethyl ether was added to the resulting concentrated residue, and the precipitate was collected by filtration and dried under reduced pressure to obtain the title compound (IIrr) (16 mg, 87%) as a light brown solid.
- Example 436 (2- ⁇ 5-[(2,5-difluorobenzyl) oxy] -3-[(methylamino) methyl] -1H-pyrazol-1-yl ⁇ ethyl) cyclopentanol hydrochloride 1- (2- ⁇ 5-[(2,5-Difluorobenzyl) oxy] -3-[(methylamino) methyl] -1H-pyrazol-1-yl ⁇ -ethyl) cyclopentanol hydrochloride Prepared in the same manner as described in Example 435.
- Example 437 1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- [2- (1-methoxycyclopentyl) ethyl] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- [2- (1-methoxycyclopentyl) ethyl] -1H- pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride
- Step (ii) The title compound (IIss) was obtained in the same manner as in the method described in Step (V) of Example 1.
- Example 438 1- ⁇ 5-[(2,5-difluorobenzyl) oxy] -1- [2- (1-methoxycyclopentyl) ethyl] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(2,5-Difluorobenzyl) oxy] -1- [2- (1-methoxycyclopentyl) ethyl] -1H- pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride Prepared in the same manner as described in Example 437.
- Examples 439-449 Using the compounds described in Reference Examples 80 to 82 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 439 to 449 were produced as shown in Table 21 by the same method as described in Examples 20 to 40. .
- Example 439 [5- (benzyloxy) -1- ⁇ [1- (trifluoromethyl) cyclopropyl] methyl ⁇ -1H-pyrazol-3-yl] -N-methylmethanamine trifluoroacetate 1- [5- (Benzyloxy) -1- ⁇ [1- (trifluoromethyl) cyclopropyl] methyl ⁇ -1H-pyrazol-3- yl] -N-methylmethanamine trifluoroacetate 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 0.82-0.91 (m, 2H), 0.97-1.10 (m, 2H), 2.61 (s, 3H), 4.02 (s, 2H), 4.16 (s, 2H ), 5.06 (s, 2H), 5.77 (s, 1H), 7.32-7.48 (m, 5H), 9.56 (br s, 2H).
- Example 441 1- (5-[(2,5-difluorobenzyl) oxy] -1- ⁇ [1- (trifluoromethyl) cyclopropyl] methyl ⁇ -1H-pyrazol-3-yl) -N-methylmethanamine trifluoro Acetate 1- (5-[(2,5-Difluorobenzyl) oxy] -1- ⁇ [1- (trifluoromethyl) cyclopropyl] methyl ⁇ -1H-pyrazol-3-yl) -N-methylmethanamine trifluoroacetate 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 0.83-0.93 (m, 2H), 0.97-1.06 (m, 2H), 2.63 (s, 3H), 4.04 (s, 2H), 4.17 (s, 2H ), 5.10 (s, 2H), 5.81 (s, 1H), 6.99-7.19 (m, 3H), 9.51 (br s, 2H).
- Example 445 [5- (Benzyloxy) -1- ⁇ [1- (trifluoromethyl) cyclopentyl] methyl ⁇ -1H-pyrazol-3-yl] -N-methylmethanamine hydrochloride 1- [5- (Benzyloxy) -1- ⁇ [1- (trifluoromethyl) cyclopentyl] methyl ⁇ -1H-pyrazol-3- yl] -N-methylmethanamine hydrochloride 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 1.36-1.77 (m, 4H), 1.80-2.08 (m, 4H), 2.61 (s, 3H), 4.09 (s, 4H), 5.09 (s, 2H ), 6.09 (s, 1H), 7.35-7.46 (m, 5H), 9.56 (br s, 2H).
- Example 447 (5-[(2,5-difluorobenzyl) oxy] -1- ⁇ [1- (trifluoromethyl) cyclopentyl] methyl ⁇ -1H-pyrazol-3-yl) -N-methylmethanamine hydrochloride 1- (5-[(2,5-Difluorobenzyl) oxy] -1- ⁇ [1- (trifluoromethyl) cyclopentyl] methyl ⁇ -1H-pyrazol-3-yl) -N-methylmethanamine hydrochloride 1 H-NMR (300 MHz, CDCl 3 ) ⁇ : 1.39-1.73 (m, 4H), 1.80-2.07 (m, 4H), 2.62 (s, 3H), 4.09 (s, 4H), 5.13 (s, 2H ), 6.15 (s, 1H), 7.01-7.22 (m, 3H), 9.82 (br s, 2H).
- Example 449 N-methyl-1- (5-[(2,4,5-trifluorobenzyl) oxy] -1- ⁇ [1- (trifluoromethyl) cyclopentyl] methyl ⁇ -1H-pyrazol-3-yl) methanamine N-Methyl-1- (5-[(2,4,5-trifluorobenzyl) oxy] -1- ⁇ [1- (trifluoromethyl) cyclo-pentyl] methyl ⁇ -1H-pyrazol-3-yl) methanamine hydrochloride
- 1 H-NMR 300 MHz, CDCl 3 ) ⁇ : 1.40-1.73 (m, 4H), 1.81-2.01 (m, 4H), 2.61 (s, 3H), 4.07 (s, 2H), 4.10 (s, 2H ), 5.08 (s, 2H), 6.15 (s, 1H), 6.88-7.08 (m, 2H), 9.78 (br s, 2H).
- Examples 450-453 Using the compound described in Reference Example 11 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 450 to 453 were produced as shown in Table 22 by the same method as described in Examples 20 to 40.
- Examples 454-469 Using the compounds described in Reference Examples 33, 83 and 84 and the corresponding benzyl chloride or benzyl bromide, the compounds of Examples 454 to 469 as shown in Table 23 were prepared in the same manner as described in Examples 20 to 40. Manufactured.
- Example 470 ( ⁇ )-1- ⁇ 1- (1-cyclohexylethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine (-)-1- ⁇ 1- (1-Cyclohexylethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine
- Example 472 (-)-1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- (1-cyclohexylethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine (-)-1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- (1-cyclohexylethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine
- Example 473 (+)-1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- (1-cyclohexylethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine (+)-1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- (1-cyclohexylethyl) -1H-pyrazol-3-yl ⁇ -N-
- Example 474 ( ⁇ )-1- ⁇ 5-[(5-chloro-2-fluorobenzyl) oxy] -1- (tetrahydro-2H-pyran-2-ylmethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethane Amine hydrochloride (-)-1- ⁇ 5-[(5-chloro-2-fluorobenzyl) oxy] -1- (tetrahydro-2H-pyran-2-ylmethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride (Where ** is as defined above)
- Step (i) The compound (Iww) produced by the method described in Examples 92 to 114 was subjected to liquid column chromatography using the following conditions, and the compound (IIww) eluting with a shorter retention time and the compound eluting subsequently ( IIIww) was obtained as a light brown oil. Liquid column chromatography conditions are described below. Column: CHIRALCEL (registered trademark) OZ-H 5 cmI. D.
- Step (ii) Compound (IVww) was obtained using compound (IIww) in the same manner as in the method described in Step (V) of Example 1.
- Example 475 (+)-1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- (tetrahydro-2H-pyran-2-ylmethyl) -1H-pyrazol-3-yl ⁇ -N-methylmethane Amine hydrochloride (+)-1- ⁇ 5-[(5-Chloro-2-fluorobenzyl) oxy] -1- (tetrahydro-2H-pyran-2-ylmethyl-)-1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride (Where ** is as defined above) Using compound (IIIww) described in Step (i) of the Example, compound (Vww) was obtained in the same manner as described in Step (V) of Example 1.
- Example 476 ( ⁇ )-1- ⁇ 1- (2-cyclopentylethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylethanamine (-)-1- ⁇ 1- (2-Cyclopentylethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3- yl ⁇ -N-methylethanamine
- Example 478 1- ⁇ 1- (3-Methylbutyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ methanamine hydrochloride 1- ⁇ 1- (3-Methylbutyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -methanamine hydrochloride The title compound was prepared in the same manner as described in Example 347.
- Example 479 1- ⁇ 1- (cyclopentylmethyl) -5-[(4-fluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ methanamine 1- ⁇ 1- (Cyclopentylmethyl) -5-[(4-fluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -methanamine
- Example 480 1- ⁇ 5-[(4-Fluorobenzyl) oxy] -1- (3-fluoro-3-methylbutyl) -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 5-[(4-Fluorobenzyl) oxy] -1- (3-fluoro-3-methylbutyl) -1H-pyrazol-3-yl ⁇ -N- methylmethanamine hydrochloride
- Steps (iii) to (iv) Concentrated hydrochloric acid (5.3 mL) was added to a solution of compound (IIddd) (3.40 g, 10.7 mmol) in methanol (11 mL), and the reaction mixture was stirred at room temperature for 3 hours. After methanol was distilled off under reduced pressure, toluene was added to the concentrated residue and the solvent was distilled off under reduced pressure three times to obtain a crude product (700 mg) of compound (IIIddd).
- Examples 481-483 The compounds of Examples 481 to 483 were produced by a method similar to that described in Example 480.
- Example 484 1- ⁇ 1- (cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine phosphate 1- ⁇ 1- (Cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine monophosphate
- Step (i) To a mixed solution of compound (Izz) (48.0 g, 200 mmol) described in Reference Example 85 and potassium carbonate (41.8 g, 300 mmol) in dimethylformamide (192 g) at room temperature, 2,5-difluorobenzyl chloride (36.0 g, 220 mmol) was added dropwise at room temperature. The reaction mixture was stirred at room temperature for 5.5 hours. The resulting salt was filtered off, and the filtered product was washed with dimethylformamide (48 g). 73.3 g (1/4 amount) of the obtained filtrate (293 g) was added dropwise to water (180 g) at 35 ° C. over 1 hour, stirred for 1 hour, then cooled to 15 ° C.
- Step (ii) Methanol (30.8 g) was added dropwise to a suspension of compound (IIzz) (35.0 g, 100 mmol) and sodium borohydride (7.9 g, 210 mmol) in tetrahydrofuran (175 g) at 35-45 ° C. over 15 minutes. The reaction mixture was stirred for 2 hours. After cooling to room temperature, toluene (262.5 g) was added, and the mixture was added dropwise in 15 minutes while keeping 3.6% hydrochloric acid (262.5 g) at 40 ° C. or lower, followed by liquid separation. The organic layer was washed with water (262.5 g ⁇ 2) and then concentrated under reduced pressure to obtain a crude product (32.1 g) of compound (Iw).
- Steps (iii) to (iv) Methanesulfonyl chloride (2.13 g, 18.6 mmol) was added to a solution of compound (Iw) (5.00 g, 15.5 mmol) and triethylamine (2.35 g, 23 mmol) in tetrahydrofuran (45.5 g) while maintaining the temperature at 10 ° C. or lower. After the reaction mixture was stirred at around 5 ° C. for 1 hour, the solution of the compound (IIIzz) obtained by slowly raising the temperature to room temperature and filtering the precipitate was directly used in the next reaction.
- the compound (IIIzz) solution was added dropwise to a 40% methylamine methanol solution (36 g) over 30 minutes under ice cooling, and the reaction mixture was stirred as it was for 1 hour.
- Toluene (50 g) and water (40) were added and the temperature was slowly raised to room temperature, followed by liquid separation, and the organic layer was concentrated under reduced pressure.
- 2-Propanol (39 g) and phosphoric acid (75%, 2.10 g) were added to the resulting concentrated residue (5.09 g), the temperature of the mixed solution was raised to 80 ° C., and dissolution of the solid matter was visually observed.
- Example 485 1- ⁇ 1- (cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine phosphate 1- ⁇ 1- (Cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine monophosphate To a solution of compound (Iw) described in Example 480 (7.00 g, 21.7 mmol) and triethylamine (2.64 g, 36.0 mmol) in tetrahydrofuran (28 g), methanesulfonyl chloride (2.99 g, 26.1 mmol) was added dropwise and the reaction mixture was stirred at around 5 ° C.
- This mixed solution was raised to 50 ° C., and 1.17 g of a solution of phosphoric acid (85%, 2.58 g) in 2-propanol (9.10 g) was added dropwise at 50 ° C. over 3 minutes. Crystals (40 mg) were added at 50 ° C., and the remaining 10.52 g was further added dropwise over 1 hour.
- the mixed solution was stirred at 50 ° C. for 30 minutes, cooled at a rate of 20 ° C. per hour, and stirred at 5 ° C. for 1 hour.
- Example 486 1- ⁇ 1- (Cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine hydrochloride 1- ⁇ 1- (Cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine hydrochloride To a mixed solution of compound (IIIa) (108 g, 349 mmol) described in Reference Example 1 and cesium carbonate (171 g, 524 mmol) in dimethylformamide (1081 mL) at room temperature, 2,5-difluorobenzyl chloride (68.1 g, 419 mmol) in dimethyl A formamide (81 mL) solution was added dropwise at room temperature.
- reaction mixture was stirred at room temperature for 14 hours, water (1729 mL) was added while cooling with ice, and toluene (2579 mL) was further added to separate the layers.
- the organic layer was washed with water (562 mL), and the concentrated residue (146 g) obtained by distilling off toluene under reduced pressure was dissolved in methanol (394 mL) without further purification, and concentrated hydrochloric acid (36% 120 g) and the reaction mixture was stirred at 50 ° C. for 1.5 hours.
- Example 487 1- ⁇ 1- (cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N-methylmethanamine citrate 1- ⁇ 1- (Cyclopentylmethyl) -5-[(2,5-difluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ -N- methylmethanamine monocitrate To a mixed solution of compound (IIIa) (10 g, 32 mmol) described in Reference Example 1 and cesium carbonate (15.8 g, 48.5 mmol) in dimethylformamide (27 mL) at room temperature, 2,5-difluorobenzyl chloride (6.31 g, A solution of 38.8 mmol) in dimethylformamide (5 mL) was added dropwise at room temperature.
- Example 488 N-methyl-1- ⁇ 1- (3-methylbutyl) -5- [2,4,5-trifluorobenzyl] oxy] -1H-pyrazol-3-yl ⁇ methanamine hydrochloride N-Methyl-1- ⁇ 1- (3-methylbutyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ methanamine hydrochloride To a solution of the title compound (Ibbb) of Reference Example 24 (11.9 g, 40 mmol) and cesium carbonate (1.95 g, 60 mmol) in dimethylformamide (123 mL) at room temperature, 2,4,5-trifluorobenzyl chloride (8.70 g).
- n-hexane (114 mL) was subsequently added dropwise at 25-30 ° C. over 1 hour.
- the mixed solution was stirred at 25-30 ° C. for 30 minutes, then cooled to 5 ° C. over 1 hour, and the mixed solution was stirred for 1 hour under ice cooling.
- the resulting precipitate was collected by filtration, washed with a cooled mixed solution of 2-propanol and n-hexane (1: 5, 12 mL), and dried under reduced pressure to obtain compound (IIIbbb) as a white solid.
- Step (i) 2,4,5-trifluorobenzyl chloride (4) was added to a mixed solution of the compound (Icccc) (5.00 g, 22 mmol) described in Reference Example 87 and potassium carbonate (4.58 g, 33 mmol) in dimethylformamide (22 mL) at room temperature. .79 g, 26.5 mmol) was added and the reaction mixture was stirred at room temperature for 15 hours. The salt was filtered off, and the filtrate was washed with dimethylformamide (15 mL), and the filtrate was added dropwise to water (111 mL) at 40 ° C. over 15 minutes. The mixed solution was stirred at 40 ° C. for 1 hour, then cooled to 6 ° C.
- Step (ii) To a suspension of lithium aluminum hydride (768 mg, 20 mmol) in tetrahydrofuran (20 mL), a solution of the compound (5.00 g, 13.5 mmol) in tetrahydrofuran (12 mL) was added dropwise over 15 minutes while maintaining the internal temperature at 15 ° C. or lower. The reaction mixture was allowed to stir for 1 hour. Water (0.77 mL), 15% sodium hydroxide (0.77 mL) and water (2.31 mL) were added in this order, the precipitate was filtered off through Celite filtration, and the filtrate was concentrated under reduced pressure ( The addition of toluene (15 mL) to 4.22 g) and distillation under reduced pressure was repeated twice.
- Step (iii) Methanesulfonyl chloride (1.3 mL, 16.8 mmol) was added to a solution of compound (IIIccc) (5.00 g, 15 mmol) and triethylamine (2.54 mL, 18 mmol) in tetrahydrofuran (30 mL) while maintaining the internal temperature at 15 ° C. or lower. The reaction mixture was stirred for 2 hours while slowly warming to room temperature. The salt was filtered off, and the filtrate was washed with tetrahydrofuran (5 mL ⁇ 2). A 40% methylamine-methanol solution (40 mL) was added dropwise to the obtained filtrate at 5-8 ° C.
- Example 490 N-methyl-1- ⁇ 1- (3-methylbutyl) -5- [2,4,5-trifluorobenzyl] oxy] -1H-pyrazol-3-yl ⁇ methanamine phosphate N-Methyl-1- ⁇ 1- (3-methylbutyl) -5-[(2,4,5-trifluorobenzyl) oxy] -1H-pyrazol-3-yl ⁇ methanamine monophosphate
- the compound (IIIbbb) described in Example 488 (3.6 g, 9.5 mmol) was added to a 10% aqueous potassium carbonate solution (50 mL) and extracted with chloroform (100 mL).
- CHO cells h-SERT / CHO
- h-SERT human serotonin transporter
- the sediment was resuspended in an appropriate amount of SERT buffer and stored at ⁇ 80 ° C. until use.
- the amount of protein in the membrane preparation was quantified by Dye Reagent Concentrate (BIO-RAD) using bovine serum albumin (Sigma Aldrich) as a standard substance.
- citalopram binding was measured according to the method of Owens et al. (Owens M. J. et al., J. Pharm. Exp. Ther., 283, 1305-1322 (1997)). That is, [ 3 H] citalopram (GE Healthcare) diluted with SERT buffer (final concentration: about 2 nmol / L) 50 ⁇ L, h-SERT / CHO membrane preparation (protein amount 40 ⁇ g / well) 149 ⁇ L, and dimethyl sulfoxide 1 ⁇ L of the dissolved test drug solution was added to make the total volume 200 ⁇ L.
- Binding inhibition constant (Ki) IC 50 / (1 + S / Kd)
- S shows the [ ⁇ 3 > H] citalopram concentration added.
- the Kd value is a [ 3 H] citalopram binding dissociation constant, and a value calculated from a saturation binding experiment separately performed using the same cell membrane was used. It means that the smaller the h-SERT binding inhibition constant Ki value is, the stronger the action of inhibiting human serotonin reuptake.
- Test Example 2 Human 5-HT 2C To evaluate the affinity for the receptor [ 3 H] mesulegine binding test
- Cells used and membrane preparations were prepared using CHO cells (h-5-HT 2C / CHO) expressing human serotonin 2C receptor (h-5-HT 2C ).
- the amount of protein in the membrane preparation was quantified by Dye Reagent Concentrate (manufactured by BIO-RAD) using bovine serum albumin (manufactured by Sigma Aldrich) as a standard substance.
- binding inhibition constant (Ki) IC 50 / (1 + S / Kd)
- S shows the [ ⁇ 3 > H] citalopram concentration added.
- the Kd value is a [ 3 H] citalopram binding dissociation constant, and a value calculated from a saturation binding experiment separately performed using the same cell membrane was used.
- Ki value means higher affinity for the human serotonin 2C receptor.
- Test example 3 5-HT 2C Receptor operability test
- CHO cells h-5-HT 2C / CHO
- human serotonin 2C receptor h-5-HT 2C
- Cells are in a 5% CO 2 incubator with 1% FBS, 400 ⁇ g / mL Geneticin, 100 U / mL penicillin-100 ⁇ g / mL streptomycin (all so far from Sigma Aldrich) and 250 ⁇ g / mL Zeosin (from InvivoGen) Ultu
- the cells were cultured in a registered trademark (Bio Whitaker).
- the cells detached and collected with a 250 ⁇ g / mL Trypsin solution (manufactured by Nacalai Tesque) were seeded at 40000 cells / well / 60 ⁇ L in 96 well flat clear bottom black TC-treated microplates (Corning), 5%. Incubations were performed for 16-24 hours in a CO 2 incubator.
- 5-HT 2C Receptor Agonism Experiment Evaluation of 5-HT 2C receptor operability was performed using FLIPR Calcium 4 Assay kit (Molecular Devices). Specifically, FLIPR Calcium 4 Assay kit Component A and 100 mL of HHBP buffer (1 ⁇ Hanks buffer, 20 mmol / L HEPES (both manufactured by Gibco)) were added at 40 ⁇ L / well to the plate in which the cells were seeded.
- the 5-HT 2C receptor operability of each test substance was calculated as the enhancement rate when the fluorescence enhancement by 10 ⁇ mol / L of 5-HT was taken as 100%.
- the 5-HT 2C receptor reverse agonist was calculated as an attenuation rate when the attenuation rate by SB206553 (manufactured by Sigma Aldrich) at 10 ⁇ mol / L was set to ⁇ 100%.
- the lower the 5-HT 2C receptor agonist value of the test substance the higher the antagonism.
- 5-HT 2C receptor agonist value of the test substance is 0% or less, 5-HT 2C Represents reverse action on the receptor.
- the compound of the present invention is a new serotonin reuptake inhibitor having both a 5-HT 2C antagonistic action, particularly a 5-HT 2C reverse action action, and the onset of a therapeutic effect may be accelerated compared to a compound having a single action. I can expect.
- the compound of the present invention is a serotonin reuptake inhibitor having 5-HT 2C antagonism, particularly 5-HT 2C reverse action, and has a strong antidepressant action and anxiolytic action. It is useful as a therapeutic or recurrence preventive.
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Abstract
Description
一方、抗うつ作用増強の試みとして、SSRIと炭酸リチウムやトリヨードチロシンなどの気分安定剤の併用療法とともに、TCAまたはSSRIなどのセロトニン取り込み阻害作用を持つ従来の抗うつ薬とブロモクリプチンなどのドーパミンアゴニストとの併用療法が行われており、SSRI単独治療に対して抵抗性を示すうつ病患者への奏功が報告されている(例えば、Biol psychiatry(1996), 40, 152)。したがって、セロトニンニューロンとドーパミンニューロンを同時に賦活化することにより、広範なうつ病患者に対して強い抗うつ作用を発揮することが期待できる。
R3およびR4は互いに独立して水素原子またはC1-6アルキル基を表し、
R5は置換されていてもよいC4-7アルキル基または-(CR8R9)r-Eを表し、
R6、R7、R8およびR9は互いに独立して水素原子、フッ素原子または置換されていてもよいC1-6アルキル基を表し、
Aは置換されていてもよいC6-10アリール基または置換されていてもよい5~10員のヘテロアリール基を表し、
rは1、2、3または4を表し、
Eは置換されていてもよいC3-8シクロアルキル基、置換されていてもよいC4-8シクロアルケニル基、置換されていてもよい5~10員の飽和ヘテロ環基(当該飽和ヘテロ環基は、環の構成原子として、酸素原子および硫黄原子からなる群より独立して選択される1~3個のヘテロ原子を含む。)、置換されていてもよいC6-10アリール基または置換されていてもよい5~10員のヘテロアリール基を表し、
Lは酸素原子、硫黄原子または-NR10-を表し、
nは1、2または3を表し、
R10は水素原子、C1-6アルキル基またはC3-8シクロアルキル基を表し、
Xは水素原子、フッ素原子で置換されていてもよいC1-6アルキル基またはハロゲン原子を表す。]で表される化合物(以下、式(1)で表される化合物または化合物(1)と称することもある。)またはその薬学上許容される塩;
[3]Aが置換されていてもよいC6-10アリール基である上記[1]または[2]に記載の化合物またはその薬学上許容される塩;
[4]Xが水素原子である上記[1]~[3]のいずれかに記載の化合物またはその薬学上許容される塩;
[5]Lが酸素原子である上記[1]~[4]のいずれかに記載の化合物またはその薬学上許容される塩;
[6]nが1である上記[1]~[5]のいずれかに記載の化合物またはその薬学上許容される塩;
[7]R1、R3およびR4が水素原子であり、R2がメチル基である上記[1]~[6]のいずれかに記載の化合物またはその薬学上許容される塩;
[8]R6、R7、R8およびR9が水素原子である上記[1]~[7]のいずれかに記載の化合物またはその薬学上許容される塩;
[9]Eが置換されていてもよいC3-8シクロアルキル基、置換されていてもよい5~10員の飽和ヘテロ環基(当該飽和ヘテロ環基は環の構成原子として1~3個の酸素原子を含む。)または置換されていてもよいフェニル基である上記[1]~[8]のいずれかに記載の化合物またはその薬学上許容される塩;
[10]Eが置換されていてもよいC3-8シクロアルキル基である上記[1]~[9]のいずれか一項に記載の化合物またはその薬学上許容される塩;
[11]rが1または2である上記[1]~[10]のいずれかに記載の化合物またはその薬学上許容される塩;
[12]R5が置換されていてもよいC4-7アルキル基である上記[1]~[8]のいずれかに記載の化合物またはその薬学上許容される塩;
1-[5-(ベンジルオキシ)-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;実施例5
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例20
1-{1-(シクロヘキシルメチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例21
1-{1-(シクロヘキシルメチル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例22
1-{5-[(2-クロロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例23
1-{5-[(3-クロロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例24
1-{1-(シクロヘキシルメチル)-5-[(2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例26
1-{1-(シクロヘキシルメチル)-5-[(3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例27
1-{1-(シクロヘキシルメチル)-5-[(2,4-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例29
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例30
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例33
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例34
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロ-5-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例35
1-{5-[(2-クロロ-5-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例37
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジクロロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例38
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例39
1-[5-(ベンジルオキシ)-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;実施例4
1-{1-(シクロペンチルメチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例135
1-{1-(シクロペンチルメチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例136
1-{5-[(2-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例138
1-{5-[(3-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例139
1-{1-(シクロペンチルメチル)-5-[(2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例141
1-{1-(シクロペンチルメチル)-5-[(3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例142
1-{1-(シクロペンチルメチル)-5-[(2,4-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例144
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例145
1-{1-(シクロペンチルメチル)-5-[(4-フルオロ-2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例146
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例147
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例148
1-{5-[(2-クロロ-5-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例150
1-{1-(シクロペンチルメチル)-5-[(2,5-ジクロロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例151
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例152
1-[5-(ベンジルオキシ)-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;実施例264
1-{5-[(3-クロロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例265
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例266
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例267
1-[5-(ベンジルオキシ)-1-(3-メチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;実施例268
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例269
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例274
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例275
1-{1-(シクロペンチルメチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例280
1-{1-(シクロヘキシルメチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルエタンアミン;実施例315
N-メチル-1-{1-(3-メチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン;実施例283
1-{1-(3,3-ジメチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例284
1-{1-(4-フルオロベンジル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例218
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-フルオロベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例219
1-{5-[(2-フルオロベンジル)オキシ]-1-(4-メチルベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例228
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-メチルベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例230
N-メチル-1-{1-(4-メチルベンジル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン;実施例286
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-メトキシベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;未実施
1-{1-(4-メトキシベンジル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例285
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロプロピルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例131
1-{5-[(4-フルオロベンジル)オキシ]-1-(2-メチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例369
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2-メチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例256
1-{1-(2,2-ジメチルプロピル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例375
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例259
1-{5-[(2-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例381
1-{5-[(4-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例383
1-(5-[(4-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン;実施例446
1-(5-[(2,5-ジフルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン;実施例447
1-(5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン;実施例448
(-)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例474
(+)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例475
(-)-1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルエタンアミン;実施例476
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例481または、
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン実施例482;
[15]うつ病または不安症の治療薬または再発予防薬である上記[14]に記載の医薬;
[16]上記[1]~[13]のいずれかに記載の化合物またはその薬学上許容される塩を有効成分として含有するセロトニン再取り込み阻害剤;
[17]上記[1]~[13]のいずれかに記載の化合物またはその薬学上許容される塩及び医薬上許容される担体を含有する医薬組成物。
R3およびR4の具体例としては、水素原子、メチル基およびエチル基が挙げられ、R3およびR4の両方が水素原子である場合が好ましい。
で表される基である。
R1およびR2が互いに独立して水素原子またはC1-6アルキル基であり、
R3およびR4が互いに独立して水素原子またはメチル基であり、
R5が置換されていてもよいC4-7アルキル基または-(CR8R9)r-Eであり、
R6およびR7が水素原子であり、
R8およびR9が互いに独立して水素原子、フッ素原子または置換されていてもよいC1-6アルキル基であり、
Aが置換されていてもよいC6-10アリール基または置換されていてもよい5~10員のヘテロアリール基であり、
rが1または2であり、
Eが置換されていてもよいC3-8シクロアルキル基、置換されていてもよいC4-8シクロアルケニル基、置換されていてもよい5~10員の飽和ヘテロ環基(当該飽和ヘテロ環基は、環の構成原子として、酸素原子および硫黄原子からなる群より選択される1~3個のヘテロ原子を含む。)、置換されていてもよいC6-10アリール基または置換されていてもよい5~10員のヘテロアリール基であり、
Lが酸素原子または硫黄原子であり、
nが1であり、
Xが水素原子、フッ素原子で置換されていてもよいC1-6アルキル基またはハロゲン原子である化合物が挙げられる。
R1およびR2が互いに独立して水素原子またはC1-6アルキル基であり、
R3およびR4が水素原子であり、
R5が置換されていてもよいC4-7アルキル基または-(CR8R9)r-Eであり、
R6およびR7が水素原子であり、
R8およびR9が互いに独立して水素原子、フッ素原子または置換されていてもよいC1-6アルキル基であり、
Aが置換されていてもよいC6-10アリール基であり、
rが1または2であり、
Eが置換されていてもよいC3-8シクロアルキル基、置換されていてもよい5~10員の飽和ヘテロ環基(当該飽和ヘテロ環基は、環の構成原子として、1~3個の酸素原子を含む。)または置換されていてもよいC6-10アリール基であり、
Lが酸素原子であり、
nが1であり、
Xが水素原子である化合物が挙げられる。
R1およびR2のどちらか一方が水素原子であり、他方がC1-6アルキル基(好ましくはメチル基)であり、
R5が置換されていてもよいC4-7アルキル基(好ましくはイソブチル基、2,2-ジメチルプロピル、3-メチルブチル基、3,3-ジメチルブチル基、2-エチルブチル基)または-CH2-Eであり、
R3、R4、R6、およびR7が水素原子であり、
Aが置換されていてもよいC6-10アリール基(好ましくはフェニル基、ナフチル基)であり、
rが1であり、
Eが置換されていてもよいC3-8シクロアルキル基(好ましくはシクロプロピル、シクロブチル、シクロペンチル基、シクロヘキシル基)または置換されていてもよいC6-10アリール基(好ましくはフェニル基、ナフチル基)であり、
Lが酸素原子であり、
nが1であり、
Xが水素原子である化合物が挙げられる。
1-[5-(ベンジルオキシ)-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;実施例5
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例20
1-{1-(シクロヘキシルメチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例21
1-{1-(シクロヘキシルメチル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例22
1-{5-[(2-クロロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例23
1-{1-(シクロヘキシルメチル)-5-[(2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例26
1-{1-(シクロヘキシルメチル)-5-[(3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例27
1-{1-(シクロヘキシルメチル)-5-[(2,4-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例29
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例30
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例33
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例34
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロ-5-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例35
1-{5-[(2-クロロ-5-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例37
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例39
1-[5-(ベンジルオキシ)-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;実施例4
1-{1-(シクロペンチルメチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例135
1-{1-(シクロペンチルメチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例136
1-{5-[(2-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例138
1-{5-[(3-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例139
1-{1-(シクロペンチルメチル)-5-[(2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例141
1-{1-(シクロペンチルメチル)-5-[(3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例142
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例145
1-{1-(シクロペンチルメチル)-5-[(4-フルオロ-2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例146
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例147
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例148
1-{5-[(2-クロロ-5-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例150
1-{1-(シクロペンチルメチル)-5-[(2,5-ジクロロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例151
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例152
1-[5-(ベンジルオキシ)-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;実施例264
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例266
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例267
1-[5-(ベンジルオキシ)-1-(3-メチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;実施例268
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例269
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例274
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例275
1-{1-(シクロペンチルメチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例280
1-{1-(シクロヘキシルメチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
N-メチル-1-{1-(3-メチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン;実施例283
1-{1-(3,3-ジメチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例284
1-{1-(4-フルオロベンジル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例218
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-フルオロベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例219
1-{5-[(2-フルオロベンジル)オキシ]-1-(4-メチルベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例228
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-メチルベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例230
N-メチル-1-{1-(4-メチルベンジル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン;実施例286
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-メトキシベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;未実施
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロプロピルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例131
1-{5-[(4-フルオロベンジル)オキシ]-1-(2-メチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例369
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2-メチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例256
1-{1-(2,2-ジメチルプロピル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例375
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例259
1-{5-[(2-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例381
1-{5-[(4-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例383
1-(5-[(4-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン;実施例446
1-(5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン;実施例448
(-)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例474
(+)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例475
(-)-1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルエタンアミン;実施例476
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;実施例481または、
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン実施例482。
本発明における化合物(1)の製造法について説明する。
本発明のピラゾール化合物は、公知化合物から、下記製造方法または下記製造方法に準じる方法によって、適宜当業者に周知の合成方法を組み合わせて製造することができる。原料化合物は公知のものを使用するか、後記実施例に記載の方法、または後記実施例に準じる方法によって、適宜当業者に周知の合成方法を組み合わせて製造することもできる。
式(1)で表される化合物のうち、R2およびXが水素原子である式(A-4)で表される化合物またはその塩は、例えば下記の方法によって製造できる。
化合物(A-3)またはその塩は、化合物(A-1)またはその塩を、化合物(A-2)と反応させることにより得ることができる。該反応は必要に応じて塩基および/または相間移動触媒の存在下、適当な不活性溶媒中で約-20℃から、用いた溶媒の沸点までの範囲の温度において、10分間~48時間反応させることにより行うことができる。
相間移動触媒としては、例えば硫酸水素テトラブチルアンモニウムなどが挙げられる。
不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)およびアセトニトリル等の非プロトン性極性溶媒またはこれらの混合溶媒が挙げられる。より好ましい溶媒としてはN,N-ジメチルホルムアミド(DMF)やN-メチル-2-ピロリドン(NMP)およびアセトニトリルが挙げられる。脱離基LGとしては塩素原子や臭素原子およびヨウ素原子などのハロゲン原子および、p-トルエンスルホニルオキシ基、ベンゼンスルホニルオキシ基およびメタンスルホニルオキシ基などの置換スルホニルオキシ基が好ましい。塩素原子や臭素原子およびヨウ素原子などのハロゲン原子がより好ましい。
化合物(A-3)のアミノ基の保護基PGを適当な方法により脱保護することで目的化合物(A-4)を得ることができる。アミノ基の保護基PGがBoc基である場合は、適当な不活性溶媒中で約-20℃から、用いた溶媒の沸点までの範囲の温度において、塩酸や硫酸などの無機酸またはトリフルオロ酢酸などの有機酸で処理することにより脱保護を行うことができる。不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)等の非プロトン性極性溶媒またはこれらの混合溶媒が挙げられる。
式(1)で表される化合物のうち、Lがアミノ基であり、R2およびXが水素原子である式(A-9)で表される化合物またはその塩は、例えば下記の方法によって製造できる。
化合物(A-6)は化合物(A-1-c)またはその塩と化合物(A-5)またはその塩と反応させてアミド結合を形成させることにより得ることができる。アミド結合形成反応は化合物(A-5)のカルボキシル基を、塩化チオニル、オキサリルクロライド等を用いる酸クロライド法や、クロロ炭酸エステルやピバロイルクロライドを用いる混合酸無水物法および、ジシクロヘキシルカルボジイミド(DCC)、1-エチル-3-(3-ジメチルアミノプロピルカルボジイミド(EDCあるいはWSC)あるいは1,1’-カルボニルジイミダゾール(CDI)などの縮合剤によって活性化後、化合物(A-1-c)と反応させることにより行うことができる。
化合物(A-6)を適当な不活性溶媒中で約-20℃から、用いた溶媒の沸点までの範囲の温度において、適当な還元剤を用いて10分間~48時間反応させることにより化合物(A-7)を得ることができる。適当な還元剤としては例えば水素化リチウムアルミニウム、ジボランなどが挙げられる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒が挙げられる。
化合物(A-7)を適当な不活性溶媒中で約-20℃から、用いた溶媒の沸点までの範囲の温度において、適当な塩基の存在下、R10aに対応するアルキルハライドを用いたアルキル反応によって化合物(A-8)を得ることができる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)およびアセトニトリル等の非プロトン性極性溶媒もしくはこれらの混合溶媒が挙げられる。適当な塩基としては炭酸カリウムや炭酸ナトリウム、炭酸セシウム、水素化ナトリウムおよび水素化カリウムなどの無機塩基、カリウムtert-ブトキシド等の金属アルコキシド等が挙げられる。
化合物(A-7)または化合物(A-8)において、製造方法1の工程(ii)と同様にしてアミノ基の脱保護を行うことによって目的化合物(A-9)を得ることができる。
式(1)で表される化合物のうち、式(A-12)で表される化合物またはその塩は、下記の方法によって製造することができる。
化合物(A-12)またはその塩は、化合物(A-10)またはその塩を化合物(A-11)またはその塩と反応させることにより得ることができる。反応は、必要に応じ塩基の存在下、また、必要に応じ相間移動触媒の存在下、適当な不活性溶媒中で約-20℃から、用いた溶媒の沸点までの範囲の温度で、10分間~48時間反応させることにより行うことができる。塩基としては、例えばトリエチルアミン、ピリジン等の有機塩基、炭酸ナトリウム、炭酸カリウム、炭酸セシウム、水素化ナトリウム、水酸化カリウム等の無機塩基、ナトリウムメトキシド、カリウムtert-ブトキシド等の金属アルコキシド等が挙げられる。相間移動触媒としては、例えば硫酸水素テトラブチルアンモニウムなどが挙げられる。不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)およびアセトニトリル等の非プロトン性極性溶媒もしくはこれらの混合溶媒が挙げられる。脱離基LGとしては塩素原子や臭素原子およびヨウ素原子などのハロゲン原子やp-トルエンスルホニルオキシ基、ベンゼンスルホニルオキシ基やメタンスルホニルオキシ基などの置換スルホニルオキシ基が好ましい。
式(1)で表される化合物のうち、R3、R4およびXが水素原子である式(A-15)で表される化合物またはその塩は、例えば下記の方法によって製造できる。
化合物(A-14)またはその塩は、化合物(A-13)またはその塩を化合物(A-11)またはその塩と反応させてアミド結合を形成させることにより得ることができる。Raが水素原子を表す場合は、アミド結合形成反応は化合物(A-13)のカルボキシル基を、塩化チオニル、オキサリルクロライド等を用いる酸クロライド法や、クロロ炭酸エステルやピバロイルクロライドを用いる混合酸無水物法およびジシクロヘキシルカルボジイミド(DCC)、1-エチル-3-(3-ジメチルアミノプロピルカルボジイミド(EDCあるいはWSC)あるいは1,1’-カルボニルジイミダゾール(CDI)などの縮合剤を用いて活性化後、化合物(A-11)と反応させることにより行うことができる。またRaがC1-6アルキル基を表す場合は、アミド結合形成反応は化合物(A-13)と化合物(A-11)またはその塩を、必要に応じ適当な酸や塩基の存在下、適当な不活性溶媒中または無溶媒で約-20℃から、用いた溶媒の沸点までの範囲の温度で、10分間~48時間反応させることにより行うことができる。適当な塩基としては、例えばトリエチルアミン、ピリジン等の有機塩基、炭酸ナトリウム、炭酸カリウム、炭酸セシウム、水素化ナトリウム、水酸化カリウム等の無機塩基が挙げられる。適当な酸としてはp-トルエンスルホン酸、酢酸、トリフルオロ酢酸などの有機酸や、塩酸および硫酸などの無機酸、塩化アルミニウムといったルイス酸が挙げられる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)等の非プロトン性極性溶媒もしくはこれらの混合溶媒が挙げられる。
化合物(A-14)を適当な還元剤を用いて適当な不活性溶媒中で約-78℃から用いた溶媒の沸点までの範囲の温度で、10分間~48時間反応させることにより行うことができる。適当な還元剤としては例えば水素化リチウムアルミニウム、ジボランなどが挙げられる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒が挙げられる。
式(1)で表される化合物のうち、R3およびXが水素原子である式(A-17)で表される化合物またはその塩は、例えば下記の方法によって製造できる。
目的化合物(A-17)またはその塩は、化合物(A-16)と化合物(A-11)またはその塩を適当な不活性溶媒中で、必要に応じて適当な酸の存在下、約-78℃から、用いた溶媒の沸点までの範囲の温度で、適当な還元剤を用いて還元的アミノ化条件で反応させることにより得ることができる。不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)およびアセトニトリル等の非プロトン性極性溶媒、酢酸や水、もしくはこれらの混合溶媒が挙げられる。適当な酸としてはリン酸、塩酸、硫酸などの無機酸、酢酸やトリフルオロ酢酸などの有機酸が挙げられる。還元剤としては水素化シアノホウ素ナトリウム、水素化トリアセトキシホウ素ナトリウムおよび、水素化ホウ素ナトリウムなどを挙げることができる。化合物(A-16)と化合物(A-11)またはその塩をそのまま混合して反応を行ってもよく、あるいはあらかじめイミンを形成させてから反応させてもよい。
式(1)で表される化合物のうち、ピラゾール環の4位にハロゲン原子が置換した式(A-20)で表される化合物またはその塩は、例えば下記の方法によって製造できる。
化合物(A-19)は化合物(A-18)を適当な不活性溶媒中で、約-78℃~用いた溶媒の沸点までの範囲の温度で、適当なハロゲン化剤と反応させることによって得ることができる。適当な不活性溶媒としてはメタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)およびN-メチル-2-ピロリドン(NMP)等の非プロトン性極性溶媒を挙げることができる。適当なハロゲン化剤としては、Xaが塩素原子を表す場合はN-クロロコハク酸イミド(NCS)が挙げられ、Xaが臭素原子を表す場合はN-ブロモコハク酸イミド(NBS)および5,5-ジメチル-1,3-ジブロモヒダントインが挙げられ、Xaがヨウ素原子を表す場合はN-ヨードコハク酸イミド(NIS)が挙げられ、Xaがフッ素原子を表す場合は1-クロロメチル-4-フルオロ-1,4-ジアゾニアビシクロ[2.2.2]-オクタン ビス(テトラフルオロボレート)(Selectfluor(登録商標))が挙げられる。
製造方法1の工程(ii)と同様にしてアミノ基の脱保護を行うことによって目的化合物(A-20)を得ることができる。
式(1)で表される化合物のうち、ピラゾール環の4位にアルキル基が置換した式(A-23)で表される化合物またはその塩は、例えば下記の方法によって製造できる。
Xcがメチル基を表す場合は、化合物(A-21)を、適当な不活性溶媒中で、約-78℃から、用いた溶媒の沸点までの範囲の温度で、テトラキストリフェニルホスフィンパラジウム(0)、ビス(ジベンジリデンアセトン)パラジウム(0)やビス(トリ-tert-ブチルホスフィン)パラジウム(0)などの0価のパラジウム触媒存在下、メチルボロン酸などのアルキルボロン酸、トリメチルアルミニウムなどのアルキルアルミニウムまたは塩化メチル亜鉛などのアルキル亜鉛と反応させることによって化合物(A-22)を得ることができる。Xcがトリフルオロメチル基を表す場合は、文献(J. Fluorine. Chem. 2007, 128 (10), 1318. または、Eur. J. Org. Chem. 1998, (2), 335.)に記載の方法などによって化合物(A-22)を得ることができる。具体的には(A-21)をヨウ化銅(I)などの1価の銅塩の存在下、トリフルオロ酢酸メチルエステルあるいはトリフルオロ酢酸ナトリウム塩と反応させることによって得ることができる。
製造方法1の工程(ii)と同様にしてアミノ基の脱保護を行うことによって目的化合物(A-23)を得ることができる。
化合物(A-25)は、化合物(A-24)に対して、R2aに対応するアルキル化剤、アルデヒド、ケトン、カルボン酸およびエステルを上記の製造方法3~5に記載の方法と同様にして反応させることによって製造することができる。
製造方法1に記載の化合物(A-1)において、Lが酸素原子を表す化合物(A-1-a)やLが硫黄原子を表す化合物(A-1-b)は以下のようにして製造することができる。
化合物(B-3)は例えば文献記載の方法(Tetrahedron, 60(2004), 1731-1848)と同様にして化合物(B-1)と化合物(B-2)またはその塩から製造できる。具体的には化合物(B-1)を適当な不活性溶媒中、約-20℃から30℃までの範囲の温度で、カルボニルジイミダゾール(CDI)で活性化し、続いて適当な酸や塩基存在下で、約-20℃から、用いた溶媒の沸点までの範囲の温度で、化合物(B-2)と反応させることによって化合物(B-3)を得ることができる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒またはこれらの混合溶媒が挙げられる。適当な酸としては塩化マグネシウムが挙げられる。化合物(B-3)と化合物(B-4)を適当な酸や塩基の存在下、適当な不活性溶媒中または無溶媒で約-20℃から、用いた溶媒の沸点までの範囲の温度で、10分間~48時間反応させることで化合物(A-1-a)を製造することができる。適当な塩基としては、例えばトリエチルアミン、ピリジン等の有機塩基や、tert-ブトキシカリウムなどの金属アルコキシド、炭酸ナトリウム、炭酸カリウム、炭酸セシウム等の無機塩基が挙げられる。適当な酸としてはp-トルエンスルホン酸やメタンスルホン酸、酢酸およびトリフルオロ酢酸などの有機酸や塩酸、硫酸およびリン酸などの無機酸を挙げることができる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)等の非プロトン性極性溶媒またはこれらの混合溶媒が挙げられる。
化合物(A-1-a)を適当な不活性溶媒中または無溶媒で約-20℃から、用いた溶媒の沸点までの範囲の温度で、ローソン試薬と反応させることで化合物(A-1-b)を製造することができる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒などが挙げられる。
製造方法2に記載の化合物(A-1-c)は文献記載の方法(Journal of Heterocyclic Chemistry, 2009, 39)を参考に以下の方法によって製造することができる。
化合物(B-5)に対して、適当な不活性溶媒中、約-78℃から、用いた溶媒の沸点までの範囲の温度で、アセトニトリルに適当な塩基を作用させて発生させたアニオンを反応させることによって化合物(B-6)を得ることができる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒などが挙げられる。適当な塩基としては水素化ナトリウム、水酸化カリウム等の無機塩基、ナトリウムメトキシド、カリウムtert-ブトキシド等の金属アルコキシド等が挙げられる。
化合物(A-1-c)は、製造方法(9)の工程(ii)と同様に、化合物(B-6)と化合物(B-4)を反応させることにより得ることができる。
製造方法3~5に記載の化合物(A-10)、化合物(A-13)および化合物(A-16)は以下に記載の方法によって製造できる。
文献記載の方法(Bioorganic & Medicinal Chemistry Letters, 17 (2007), 5567)を参考にして、化合物(B-7)を、適当な酸や塩基の存在下、適当な不活性溶媒中または無溶媒で約-20℃から、用いた溶媒の沸点までの範囲の温度で、化合物(B-4)と10分間~48時間反応させることで化合物(B-8)を製造することができる。適当な塩基としては、例えばトリエチルアミン、ピリジン等のアミンや、炭酸ナトリウム、炭酸カリウム、炭酸セシウム等の無機塩基が挙げられる。適当な酸としてはp-トルエンスルホン酸やメタンスルホン酸、酢酸およびトリフルオロ酢酸などの有機酸や塩酸、硫酸およびリン酸などの無機酸をあげることができる。適当な不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)等の非プロトン性極性溶媒もしくはこれらの混合溶媒が挙げられる。
化合物(B-8)と化合物(A-2)を製造方法1の工程(i)に記載の方法と同様に反応させることで化合物(A-13)を得ることができる。
化合物(A-13)を、通常行われる一般的方法[例えば、コンプリヘンシブ・オーガニック・トランスフォーメーションズ(Comprehensive Organic Transformations)、アール.シー.ラロック(R. C. Larock)著(1989年)等参照]によって適宜変換することによって、化合物(A-10)や化合物(A-16)に変換することができる。
式(1)で表される化合物のうち、式(A-12-a)で表される化合物またはその塩は、下記の方法によって製造することができる。
化合物(A-3-a)または化合物(A-3-b)またはそれらの塩は、化合物(A-10)またはその塩を化合物(B-10-a)または化合物(B-10-b)またはそれらの塩と反応させることにより得ることができる。反応は、必要に応じ塩基の存在下、また、必要に応じ相間移動触媒の存在下、適当な不活性溶媒中で約-20℃から、用いた溶媒の沸点までの範囲の温度で、10分間~48時間反応させることにより行うことができる。塩基としては、例えばトリエチルアミン、ピリジン等の有機塩基、炭酸ナトリウム、炭酸カリウム、炭酸セシウム、水酸化ナトリウム、水酸化カリウム、水素化ナトリウム、水酸化カリウム等の無機塩基、ナトリウムメトキシド、カリウムtert-ブトキシド等の金属アルコキシド等が挙げられる。相間移動触媒としては、例えば硫酸水素テトラブチルアンモニウムなどが挙げられる。不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒、メタノール、エタノール、イソプロパノール等の低級アルコール、N,N-ジメチルホルムアミド(DMF)、N-メチル-2-ピロリドン(NMP)およびアセトニトリル等の非プロトン性極性溶媒もしくはこれらの混合溶媒が挙げられる。脱離基LGとしては塩素原子や臭素原子およびヨウ素原子などのハロゲン原子やp-トルエンスルホニルオキシ基、ベンゼンスルホニルオキシ基やメタンスルホニルオキシ基などの置換スルホニルオキシ基が好ましい。
製造方法1の工程(ii)と同様にしてアミノ基の脱保護を行うことによって目的化合物(A-12-a)を得ることができる。同一窒素原子上に存在する2つのPG1基が窒素原子とともに環を形成してフタル酸イミドやコハク酸イミドを表す場合は、ヒドラジン1水和物やメチルアミンなどのアミノ化合物と適当な不活性溶媒中または無溶媒で約-20℃から、用いた溶媒の沸点までの範囲の温度で、10分間~48時間反応させることにより行うことができる。不活性溶媒としては、例えばベンゼン、トルエン等の芳香族炭化水素、ジエチルエーテル、テトラヒドロフラン(THF)、1,4-ジオキサン等のエーテル系溶媒および、メタノール、エタノール、イソプロパノール等の低級アルコールもしくはこれらの混合溶媒が挙げられる。
保護基の導入および脱保護は、有機合成化学で常用される方法(例えば、上記のプロテクティブ・グループス・イン・オーガニック・シンセシス(Protective Groups in Organic Synthesis) 参照)またはそれらに準じた方法により行うことができる。
前記製造方法における中間体および目的化合物は、有機合成化学で常用される精製方法、例えば中和、濾過、抽出、洗浄、乾燥、濃縮、再結晶、各種クロマトグラフィー等により、単離精製することができる。また、中間体においては、特に精製することなく次の反応に供することも可能である。
式(1)で表される化合物の薬学上許容される塩を取得するには、化合物(1)が薬学上許容される塩の形で得られる場合そのまま精製すればよく、一方、遊離の形で得られる場合、適当な有機溶媒に溶解もしくは懸濁させ、酸または塩基を加えて通常の方法により塩を形成させればよい。例えば水、メタノール、エタノール、アセトン等の溶媒中で、薬学上許容される酸又はアルカリと混合することで、塩にすることができる。
また、式(1)で表される化合物およびその薬学上許容される塩は、水との水和物またはエタノールなどの各種溶媒との溶媒和物として存在することもあるが、これら水和物や溶媒和物も本発明に包含される。
結晶として得られる式(1)で表される化合物およびその薬学上許容される塩には、結晶多形が存在する場合があり、その結晶多形も本発明に包含される。
非経口投与には、有効成分は水、生理食塩水、油、ブドウ糖水溶液などの生理的に許容し得る担体に溶解または懸濁し、補助剤として乳化剤、安定化剤、浸透圧調整用塩、または緩衝剤を必要に応じて含有してもよい。
実施例および参考例において以下の略号を使用することがある。
Et:エチル
n-Bu:ノルマルブチル
n-Pent:ノルマルペンチル
n-Hex:ノルマルヘキシル
n-Hep:ノルマルヘプチル
Boc:tert-ブトキシカルボニル
DMSO:ジメチルスルホキシド
THF:テトラヒドロフラン
DMF;N,N-ジメチルホルムアミド
CDI:1,1’-カルボニルジイミダゾール
Ms:メタンスルホニル
Bn:ベンジル
TFA:トリフルオロ酢酸
DBU:1,8-ジアザビシクロ[5.4.0]ウンデカ-7-エン
PTLC:分取薄層クロマトグラフィー
ObsMS[M+1]:観測されたプロトン化分子
参考例1
tert-ブチル{[1-(シクロペンチルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(cyclopentylmethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
化合物(Ia)(142g,0.75mol)のTHF(750mL)溶液に21~23℃でCDI(134g,0.83mol)を少しずつ15分間で加えた。反応混合物を室温で1.5時間攪拌後、塩化マグネシウム(92.8g,0.98mol)とマロン酸エチルカリウム(166g,0.98mmol)を加えて、反応混合物を50℃で2時間攪拌した。室温に冷却後、冷却して内温25℃以下に保ちながら水(1.5L)を加えた。溶液をトルエン(2L)で抽出し、全有機層を5%炭酸カリウム(1.5L)、水(1.5Lで2回)、5%硫酸水素カリウム(1.5Lおよび1.0Lの2回)および水(1.5L)の順で洗浄した。有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去することで化合物(IIa)(183g,91%)を黄褐色油状物として得た。
(シクロペンチルメチル)ヒドラジン 二塩酸塩(82.1g,0.43mol)およびトリエチルアミン(108g,1.1mol)のエタノール(855mL)溶液を55℃で攪拌し均一溶液になったことを確認後、化合物(IIa)(108.5g,0.41mol)を加え、反応混合物を65℃で約1時間攪拌した。室温に冷却後、5%硫酸水素カリウム(584g)を加えて、さらに水(876mL)を加えて、全体の重量が1567gになるまでエタノールを減圧留去した。濃縮残渣を酢酸エチル(1.4Lおよび0.95Lの2回)で抽出し、全有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣に酢酸エチル(332mL)を加えて加温し、固形物の溶解を確認後、45℃まで冷却して、化合物(IIIa)の種晶を加えた。混合溶液を内温43~45℃で1時間攪拌後、n-ヘキサン(332mL)を内温43~45℃に保ちながら45分間で滴下し、混合溶液をそのまま1時間攪拌した。その後、3時間で10℃までゆっくり冷却しながら攪拌し、ひきつづき内温4~10℃で1時間攪拌後、生じた沈殿をろ取し、ろ上物を冷却したn-ヘキサン/酢酸エチル(1:1)混合溶液(116mL)で2回洗浄後、得られた粉末を減圧乾燥することで化合物(IIIa)(92.5g,70%)を白色固体として得た。
1H-NMR (300 MHz, CDCl3) δ: 1.20-1.75 (8H, m), 1.46 (9H, s), 2.23-2.35 (1H, m), 2.84 (3H, br s), 3.20 (2H, s), 3.55 (2H, d, J = 7.5 Hz), 4.10 (2H, br s).
参考例2
tert-ブチル {[1-(シクロプロピルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(cyclopropylmethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル {[1-(シクロブチルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(cyclobutylmethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル {[1-(シクロヘキシルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(cyclohexylmethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル メチル{[5-オキソ-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}カルバメート
tert-Butyl methyl{[5-oxo-1-(tetrahydro-2H-pyran-2-ylmethyl)-4,5-dihydro-
1H-pyrazol-3-yl]methyl}carbamate
tert-ブチル {[1-(1-シクロペンチルエチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(1-cyclopentylethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル {[1-(1-シクロヘキシルエチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(1-cyclohexylethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル {[1-(1-シクロヘキシルプロピル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(1-cyclohexylpropyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル {[1-(ビシクロ[2.2.1]ヘプト-2-イルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(bicyclo[2.2.1]hept-2-ylmethyl)-5-oxo-4,5-dihydro-1H-
pyrazol-3-yl]methyl}methylcarbamate
tert-ブチル メチル{[1-(7-オキサビシクロ[2.2.1]ヘプト-2-イルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチル}カルバメート
tert-Butyl methyl{[1-(7-oxabicyclo[2.2.1]hept-2-ylmethyl)-5-oxo-4,5-
dihydro-1H-pyrazol-3-yl]methyl}carbamate
tert-ブチル メチル{[1-(2-オキサビシクロ[2.2.2]オクト-3-イルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチル}カルバメート
tert-Butyl methyl{[1-(2-oxabicyclo[2.2.2]oct-3-ylmethyl)-5-oxo-4,5-
dihydro-1H-pyrazol-3-yl]methyl}carbamate
tert-ブチル ({1-[(4,4-ジフルオロシクロヘキシル)メチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)メチルカルバメート
tert-Butyl ({1-[(4,4-difluorocyclohexyl)methyl]-5-oxo-4,5-dihydro-1H-
pyrazol-3-yl}methyl)methylcarbamate
tert-ブチル ({1-[(1-フルオロシクロヘキシル)メチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)メチルカルバメート
tert-Butyl ({1-[(1-fluorocyclohexyl)methyl]-5-oxo-4,5-dihydro-1H-pyrazol-
3-yl}methyl)methylcarbamate
tert-ブチル {[1-(2-シクロペンチルエチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(2-cyclopentylethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル [(1-ブチル-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル)メチル]メチルカルバメート
tert-Butyl [(1-butyl-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)methyl]methyl-carbamate
tert-ブチル メチル[(5-オキソ-1-ペンチル-4,5-ジヒドロ-1H-ピラゾール-3-イル)メチル]カルバメート
tert-Butyl methyl[(5-oxo-1-pentyl-4,5-dihydro-1H-pyrazol-3-yl)methyl]-carbamate
tert-ブチル [(1-ヘキシル-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル)メチル]メチルカルバメート
tert-Butyl [(1-hexyl-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)methyl]methyl-carbamate
tert-ブチル [(1-ヘプチル-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル)メチル]メチルカルバメート
tert-Butyl [(1-heptyl-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)methyl]methyl-carbamate
tert-ブチル メチル{[5-オキソ-1-(ペンタン-3-イル)-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}カルバメート
tert-Butyl methyl{[5-oxo-1-(pentan-3-yl)-4,5-dihydro-1H-pyrazol-3-yl]-methyl}carbamate
tert-ブチル メチル{[1-(2-メチルプロピル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}カルバメート
tert-Butyl methyl{[1-(2-methylpropyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}carbamate
tert-ブチル {[1-(2,2-ジメチルプロピル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(2,2-dimethylpropyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル {[1-(3,3-ジメチルブチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(3,3-dimethylbutyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル {[1-(2-エチルブチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(2-ethylbutyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]methyl}-methylcarbamate
tert-ブチル メチル{[1-(3-メチルブチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}カルバメート
tert-Butyl methyl{[1-(3-methylbutyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}carbamate
tert-ブチル メチル{[5-オキソ-1-(4,4,4-トリフルオロブチル)-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}カルバメート
tert-Butyl methyl{[5-oxo-1-(4,4,4-trifluorobutyl)-4,5-dihydro-1H-pyrazol-
3-yl]methyl}carbamate
tert-ブチル {[1-(3-メトキシ-3-メチルブチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl {[1-(3-methoxy-3-methylbutyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-
yl]methyl}methylcarbamate
tert-ブチル メチル({1-[(1-メチルシクロヘキシル)メチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)カルバメート
tert-Butyl methyl({1-[(1-methylcyclohexyl)methyl]-5-oxo-4,5-dihydro-1H-
pyrazol-3-yl}methyl)carbamate
tert-ブチル メチル({1-[(2-メチルシクロヘキシル)メチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)カルバメート
tert-Butyl methyl({1-[(2-methylcyclohexyl)methyl]-5-oxo-4,5-dihydro-1H-
pyrazol-3-yl}methyl)carbamate
tert-ブチル メチル({1-[(3-メチルシクロヘキシル)メチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)カルバメート
tert-Butyl methyl({1-[(3-methylcyclohexyl)methyl]-5-oxo-4,5-dihydro-1H-
pyrazol-3-yl}methyl)carbamate
tert-ブチル メチル({1-[(4-メチルシクロヘキシル)メチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)カルバメート
tert-Butyl methyl({1-[(4-methylcyclohexyl)methyl]-5-oxo-4,5-dihydro-1H-
pyrazol-3-yl}methyl)carbamate
tert-ブチル {1-[1-(シクロペンチルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]エチル}メチルカルバメート
tert-Butyl {1-[1-(cyclopentylmethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-ethyl}methylcarbamate
1H-NMR (300 MHz, CDCl3) δ: 1.14-1.87 (20H, m), 2.32 (1H, m), 2.68 (3H, s), 3.17 (2H, m), 3.58 (2H, d, J = 7.5 Hz), 5.11 (1H, br s).
参考例32
tert-ブチル {1-[1-(シクロヘキシルメチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]エチル}メチルカルバメート
tert-Butyl {1-[1-(cyclohexylmethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-ethyl}methylcarbamate
tert-ブチル {1-[1-(2-シクロペンチルエチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]エチル}メチルカルバメート
tert-Butyl {1-[1-(2-cyclopentylethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-ethyl}methylcarbamate
tert-ブチル {1-[1-(2-シクロヘキシルエチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]エチル}メチルカルバメート
tert-Butyl {1-[1-(2-cyclohexylethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-ethyl}methylcarbamate
tert-ブチル {1-[1-(2-エチルブチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]エチル}メチルカルバメート
tert-Butyl {1-[1-(2-ethylbutyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]ethyl}-methylcarbamate
tert-ブチル [(1-ベンジル-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル)メチル]メチルカルバメート
tert-Butyl [(1-benzyl-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)methyl]methyl-carbamate
化合物(Ib)(1.32g,6.3mmol)の酢酸(13mL)およびトルエン(6.3mL)混合溶液に化合物(IIb)(1.00g,6.3mmol)の水(6.3mL)溶液を加え、反応混合物を80℃で4時間、120℃で3時間、130℃で3時間攪拌した。溶媒を減圧留去後、濃縮残渣に水(3mL)を加えて生じた固体をろ取し、得られた固体にトルエン(5mL)を加えて1時間加熱還流還流後、ゆっくり0℃に冷却して0℃で1時間攪拌後、固形物をろ取し、減圧乾燥することで化合物(IIIb)(919mg,59%)を得た。
化合物(IIIb)(710mg,2.9mmol)および炭酸カリウム(418mg,3.0mmol)のジメチルホルムアミド(8.6mL)溶液に室温でベンジルブロミド(360μL,3.0mmol)を加え、反応混合物を室温で1時間攪拌した。塩をろ別し、溶媒を減圧留去して得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン/酢酸エチル)で精製して、化合物(IVb)の粗生成物を得た。続いて化合物(IVb)を精製することなくテトラヒドロフラン(14mL)に溶解させて、室温で水素化リチウムアルミニウム(131mg,3.4mmol)を少しずつ加え、反応混合物を30分間攪拌した。反応溶液に水(150μL)、2mol/L水酸化ナトリウム水溶液(150μL)および水(450μL)を加え、室温で20分間攪拌して生じた沈殿をセライトろ過にてろ去した。ろ液を濃縮後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=1:1~酢酸エチル)で精製して、化合物(Vb)(608mg,72%)を得た。
化合物(Vb)(607mg,2.1mmol)およびトリエチルアミン(282μL,4.2mmol)のジクロロメタン(6.2mL)溶液に0℃でメタンスルホニルクロライド(239μL,3.1mmol)を加え、反応混合物をそのまま30分間攪拌した。ひきつづき40%メチルアミン-メタノール溶液(6.2mL)を少しずつ加え、反応混合物をゆっくり室温に昇温させながら1夜間攪拌した。飽和重曹水を加えて10%メタノール-クロロホルムで抽出し、有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去することで化合物(VIb)の粗生成物を得た。これをさらに精製することなくトリエチルアミン(282μL,4.2mmol)とともにジクロロメタン(10mL)に溶解させて、室温でジ-tert-ブチル ジカーボネート(900mg,4.1mmol)を加え、反応混合物を室温で30分間攪拌した。飽和重曹水を加えてクロロホルムで抽出し、有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去することで得た濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=95:5~60:40)で精製して、化合物(VIIb)(643mg,76%)を得た。
化合物(VIIb)(300mg,0.74mmol)をメタノール(2mL)中で10%パラジウム炭素(30mg)を用いて室温で1時間常圧水素添加反応を行った。触媒をセライトろ過で除き、ろ液を濃縮することで標記化合物(VIIIb)(243mg,定量的)を得た。
1H-NMR (300 MHz, CDCl3) δ: 1.45 (9H, s), 2.84 (3H, br s), 3.25 (2H, br s), 4.09 (2H, br s), 4.82 (2H, s), 7.27-7.37 (5H, m).
tert-ブチル {[5-オキソ-1-(2-フェニルエチル)-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカルバメート
tert-Butyl methyl{[5-oxo-1-(2-phenylethyl)-4,5-dihydro-1H-pyrazol-3-yl]-methyl}carbamate
1H-NMR (300 MHz, CDCl3) δ: 1.47 (9H, s), 2.85 (3H, br s), 2.99 (2H, br t, J = 7.6 Hz), 3.17 (2H, br s), 3.87-3.92 (2H, m), 4.12 (2H, br s), 7.18-7.32 (5H, m).
シクロヘキシルアルデヒド(38g,339mmol)のメタノール(677mL)溶液にN-Boc-ヒドラジン(44.8g,339mmol)を室温で加え、反応混合物を室温で3時間攪拌した。溶媒を減圧留去し、得られた濃縮残渣にヘキサン(100mL)を加えて懸濁させ、生じた沈殿をろ取することで化合物(1c)(55.9g)を白色固体として得た。ろ液を濃縮し、濃縮残渣にn-ヘキサン(30mL)を加えて生じた沈殿をろ取し、ろ上物をn-ヘキサン(15mL)で洗浄することで化合物(1c)(14.3g,合計70.2g,91%)を白色固体として得た。
水素化シアノホウ素ナトリウム(12.5g,189mmol)のメタノール(430mL)および酢酸(40mL)溶液に、氷浴で冷却して内温15℃以下に保ちながら化合物(Ic)(42.8g,189mmol)を10分間で加え、反応混合物を30分間攪拌後、ゆっくり室温に昇温させながら30分間攪拌した。再び氷浴で冷却しながら2mol/L水酸化ナトリウム水溶液(50mL)でpH8に調整してクロロホルム(300mLおよび50mLの2回)で抽出した。全有機層を飽和重曹水(200mL)および飽和食塩水(200mL)で洗浄し、無水硫酸ナトリウムで乾燥後、溶媒を減圧留去することで化合物(IIc)(46.3g)の粗生成物を油状物として得た。これを精製することなくメタノール(400mL)に溶解させ、55℃で濃塩酸(100mL)を30分間で滴下した。反応混合物を55~60℃で1時間攪拌後、室温に冷却して溶媒を減圧留去した。濃縮残渣にメタノール(200mL)を加えて減圧留去することを2回行った後、濃縮残渣に酢酸エチル(200mL)を加えて室温で攪拌し、生じた沈殿をろ取することで標記化合物(IIIc)(39.4g)を白色粉末として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 0.90 (2H, br dd, J = 22.6, 11.7 Hz), 1.09-1.26 (3H, m), 1.55-1.78 (6H, m), 2.72 (2H, br d, J = 4.4 Hz).
参考例39
(1-シクロヘキシルエチル)ヒドラジン 二塩酸塩
(1-Cyclohexylethyl)hydrazine dihydrochloride
(1-シクロヘキシルプロピル)ヒドラジン 二塩酸塩
(1-Cyclohexylpropyl)hydrazine dihydrochloride
ペンタン-3-イルヒドラジン 二塩酸塩
Pentan-3-ylhydrazine dihydrochloride
文献記載の方法(Tetrahedron,1996,52(42),13513)に従って製造したα-ケトエステル(Id)(887mg,4.8mmol)とtert-ブチル カルバゼート(636mg,4.8mmol)のトルエン(5mL)溶液を1日間加熱還流した。室温に冷却後、溶媒を減圧留去することで化合物(IId)の粗生成物を得た。これをさらに精製することなくメタノール(24mL)と酢酸(2.4mL)に溶解させて、水浴で室温に保ちながらシアン化水素ナトリウム(603mg,9.6mmol)を加え、反応混合物を1夜間加熱還流した。反応溶液を氷浴で冷却しながら水(10mL)を加え、さらに飽和重曹水を加えてクロロホルムで抽出した。有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去することで得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=4:1)で精製して、化合物(IIId)(482mg,33%)を無色油状物として得た。
化合物(IIId)(377mg,1.3mmol)のエタノール(2.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1.9mL)を加え、反応溶液を50℃で35分間攪拌した。さらに4mol/L 塩化水素 1,4-ジオキサン溶液(0.3mL)を加え、反応溶液を50℃で30分間攪拌した。反応溶液を室温に冷却後、溶媒を減圧留去して得られた濃縮残渣にジエチルエーテルを加えてデカンテーションすることで標記化合物(IVd)(238mg,80%)を白色固体として得た。
(シクロペンチルメチル)ヒドラジン 二塩酸塩
(Cyclopentylmethyl)hydrazine dihydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.12-1.26 (2H, m), 1.42-1.65 (4H, m), 1.67-1.81 (2H, m), 2.02-2.17 (1H, m), 2.84 (2H, d, J = 7.3 Hz), 7.16 (5H, br s).
参考例44
(シクロプロピルメチル)ヒドラジン 二塩酸塩
(Cyclopropylmethyl)hydrazine dihydrochloride
(シクロブチルメチル)ヒドラジン 二塩酸塩
(Cyclobutylmethyl)hydrazine dihydrochloride
(シクロヘプチルメチル)ヒドラジン 二塩酸塩
(Cycloheptylmethyl)hydrazine dihydrochloride
(2-シクロヘキシルエチル)ヒドラジン 二塩酸塩
(2-Cyclohexylethyl)hydrazine dihydrochloride
(2-シクロペンチルエチル)ヒドラジン 二塩酸塩
(2-Cyclopentylethyl)hydrazine dihydrochloride
[(4-メチルシクロヘキシル)メチル]ヒドラジン 二塩酸塩
[(4-Methylcyclohexyl)methyl]hydrazine dihydrochloride
[(1-メチルシクロヘキシル)メチル]ヒドラジン 二塩酸塩
[(1-Methylcyclohexyl)methyl]hydrazine dihydrochloride
[(2-メチルシクロヘキシル)メチル]ヒドラジン 二塩酸塩
[(2-Methylcyclohexyl)methyl]hydrazine dihydrochloride
[(4,4-ジフルオロシクロヘキシル)メチル]ヒドラジン 二塩酸塩
[(4,4-Difluorocyclohexyl)methyl]hydrazine dihydrochloride
[(1-フルオロシクロヘキシル)メチル]ヒドラジン 二塩酸塩
[(1-Fluorocyclohexyl)methyl]hydrazine dihydrochloride
(3,3-ジメチルブチル)ヒドラジン 二塩酸塩
(3,3-Dimethylbutyl)hydrazine dihydrochloride
(2,2-ジメチルプロピル)ヒドラジン 二塩酸塩
(2,2-Dimethylpropyl)hydrazine dihydrochloride
(2-エチルブチル)ヒドラジン 二塩酸塩
(2-Ethylbutyl)hydrazine dihydrochloride
(3-メチルブチル)ヒドラジン 二塩酸塩
(3-Methylbutyl)hydrazine dihydrochloride
(ビシクロ[2.2.1]ヘプト-2-イルメチル)ヒドラジン 二塩酸塩
(Bicyclo[2.2.1]hept-2-ylmethyl)hydrazine dihydrochloride
(4,4,4-トリフルオロブチル)ヒドラジン 二塩酸塩
(4,4,4-Trifluorobutyl)hydrazine dihydrochloride
(3-メトキシ-3-メチルブチル)ヒドラジン 二塩酸塩
(3-Methoxy-3-methylbutyl)hydrazine dihydrochloride
(7-オキサビシクロ[2.2.1]ヘプト-2-イルメチル)ヒドラジン 二塩酸塩
(7-Oxabicyclo[2.2.1]hept-2-ylmethyl)hydrazine dihydrochloride
文献記載の方法(Teterahedron Letters,23(50),5299.)を参考に製造した。フラン(3.0mL,41mmol)、アクリル酸エチル(3.00g,30mmol)およびヨウ化亜鉛(2.87g,9.0mmol)の混合溶液を40℃で1日間攪拌した。酢酸エチルで希釈し、シリカゲルおよびセライトの混合物でろ過後、ろ液を濃縮することで化合物(If)の粗生成物(6.34g)を得た。これをさらに精製することなく、メタノール(30mL)中で5%パラジウム炭素(700mg)を用いて1夜間常圧水素添加反応を行った。触媒をセライトろ過で除き、ろ液を減圧濃縮することで化合物(IIf)の粗生成物(3.70g)を得た。さらに精製することなく、テトラヒドロフラン(90mL)に溶解し、0℃で水素化リチウムアルミニウム(1.20g,32mmol)を少しずつ加え、反応混合物をそのまま0℃で30分間攪拌した。反応溶液に水、2mol/L水酸化ナトリウム水溶液および水の順で加え、室温で攪拌して生じた沈殿をセライトろ過にてろ去した。ろ液を濃縮後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル)で精製して、化合物(IIIf)(2.40g,63%)を得た。
化合物(IIIf)(2.40g,19mmol)およびトリエチルアミン(5.2mL,38mmol)のジクロロメタン(30mL)溶液に0℃でメタンスルホニルクロライド(2.2mL,28mmol)を加え、反応溶液を0℃で30分間攪拌した。飽和重曹水を加えてクロロホルムで抽出し、全有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧濃縮した。濃縮残渣をエタノール(19mL)に溶解させて、ヒドラジン1水和物(5.63g,113mmol)を加え、反応混合物を室温で5日間、60℃で8時間攪拌した。室温に冷却後、溶媒を減圧留去し、得られた濃縮残渣に飽和重曹水を加えてクロロホルムで抽出し、全有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をテトラヒドロフラン(16mL)に溶解させて4mol/L 塩化水素 1,4-ジオキサン溶液(16mL)を室温で加えて、混合溶液を室温で1夜間攪拌した。生じた沈殿をろ取し、ろ上物を減圧乾燥することで標記化合物(IVf)(2.91g,87%)を白色粉末として得た。
1H-NMR (400 MHz, DMSO-d6) δ: 1.15-2.07 (7H, m), 2.59-2.82 (1H, m), 2.92-3.72 (1H, m), 4.44-4.49 (2H, m), 5.74 (5H, s).
(2-オキサビシクロ[2.2.2]オクト-3-イルメチル)ヒドラジン 二塩酸塩
(2-Oxabicyclo[2.2.2]oct-3-ylmethyl)hydrazine dihydrochloride
文献記載の方法(Teterahedron,52(21),7321.)を参考に製造した。
銅(II)トリフレート(88mg,0.24mmol)と2,2’-イソプロピリデンビス[(4S)-4-tert-ブチル-2-オキサゾリン](108mg,0.37mmol)のジクロロメタン(5mL)溶液に室温でシクロヘキサジエン(4.7mL,49mmol)のジクロロメタン(10mL)溶液を加え、引き続いて調整したエチル グリオキシレート単量体(5.0g,49mmol)を加えて、反応混合物を室温でそのまま1夜間攪拌した。ジエチルエーテルで希釈してシリカゲルでろ過し、ろ液を濃縮することで化合物(Ig)の粗生成物(2.65g)を得た。これをさらに精製することなく1.58gを用いて、10%パラジウム炭素(158mg)を用いて、メタノール(10mL)中、室温で2.5時間常圧水素添加反応を行った。触媒をセライトろ過でろ別し、ろ液を濃縮後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=90:10~75:25)で精製して、化合物(IIg)(460mg,9%)を得た。
化合物(IIg)(199mg,1.1mmol)のテトラヒドロフラン(10mL)溶液に室温で水素化ホウ素リチウム(70mg,3.2mmol)を加え、反応混合物を室温で1時間攪拌した。反応溶液を0℃で塩化アンモニウム水溶液に滴下し、酢酸エチルで抽出した。全有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去し、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=70:30~30:70)で精製して、化合物(IIIg)(120mg,78%)を得た。
化合物(IIIg)(440mg,3.0mmol)およびトリエチルアミン(878μL,6.3mmol)のジクロロメタン(9mL)溶液に0℃でメタンスルホニルクロライド(366μL,4.7mmol)を加え、反応溶液を0℃で30分間攪拌した。飽和重曹水を加えてクロロホルムで抽出し、全有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧濃縮した。濃縮残渣をエタノール(3mL)に溶解させて、ヒドラジン1水和物(946mg,19mmol)を加え、反応混合物を室温で1夜間、100℃で4時間攪拌した。室温に冷却後、溶媒を減圧留去し、得られた濃縮残渣に飽和重曹水を加えてクロロホルムで抽出し、全有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をテトラヒドロフラン(5mL)に溶解させて4mol/L 塩化水素 ジオキサン溶液(3.5mL)を室温で加えて、混合溶液を室温で30分間、0℃で30分間攪拌した。生じた沈殿をろ取し、ろ上物を減圧乾燥することで標記化合物(IVg)(220mg,31%)を白色粉末として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 1.45-1.92 (9H, m), 2.91 (1H, dd, J = 12.0, 4.7 Hz), 3.07 (1H, dd, J = 11.9, 8.6 Hz), 3.53 (5H, br s), 3.68-3.74 (1H, m), 3.93-3.99 (1H, m).
文献(Synlett,2004,13,2355)の方法を参考に製造した。
N-Boc-ヒドラジン(50g,378mmol)、無水硫酸マグネシウム(10g)、酢酸(25滴)のアセトン(375mL)溶液を2時間加熱還流した。室温まで冷却後、生じた沈殿をろ別し、ろ液を減圧濃縮することで化合物(Ih)(65.1g,定量的)を白色固体として得た。
化合物(Ih)(10g,58mmol)、2-(テトラヒドロピラニル)メチルブロマイド(10mL,81mmol)、水酸化カリウム(4.89g,87mmol)および硫酸テトラブチルアンモニウム(1.97g,5.8mmol)のトルエン(200mL)溶液を9時間加熱還流した。反応混合物に水(200mL)を加えて分液し、水層を酢酸エチル(200mL)で抽出した。全有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン/酢酸エチル)で精製して、化合物(IIh)(9.30g)を得た。これをメタノール(65mL)およびクロロホルム(30mL)の混合溶媒に溶解させて、室温で4mol/L 塩化水素 1,4-ジオキサン溶液(65mL)を加え、反応混合物を50℃で1時間攪拌した。溶媒を減圧留去後、得られた濃縮残渣に酢酸エチル(100mL)に加えて1時間室温で攪拌し、生じた沈殿をろ取し、酢酸エチル(5mL)で2回洗浄後、減圧乾燥することで標記化合物(IIIh)(6.79g,70%)を白色固体として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 1.12-1.28 (1H, m), 1.37-1.59 (4H, m), 1.70-1.85 (1H, m), 2.83-2.94 (2H, m), 3.30-3.42 (1H, m), 3.49-3.60 (1H, m), 3.84-3.94 (1H, m), 7.69 (5H, brs).
参考例64
[(3-メチルシクロヘキシル)メチル]ヒドラジン 二塩酸塩
[(3-Methylcyclohexyl)methyl]hydrazine dihydrochloride
(シクロペンチルメチル)ヒドラジン リン酸塩
(Cyclopentylmethyl)hydrazine phosphate
1H-NMR (400 MHz, DMSO-d6) δ: 1.14-1.19 (2H, m), 1.40-1.55 (4H, m), 1.70-1.75 (2H, m), 2.00-2.10 (1H, m), 2.74 (2H, d, J = 8.0 Hz), 7.15 (6H, br).
(シクロペンチルメチル)ヒドラジン 硫酸塩
(Cyclopentylmethyl)hydrazine sulfate
1H-NMR (400 MHz, DMSO-d6) δ: 1.14-1.21 (2H, m), 1.46-1.58 (4H, m), 1.68-1.75 (2H, m), 1.99-2.07 (1H, m), 2.82 (2H, d, J = 8.0 Hz), 7.95 (5H, br).
(3-メチルブチル)ヒドラジン リン酸塩
(3-Methylbutyl)hydrazine phosphate
1H-NMR (300 MHz, DMSO) δ: 0.85 (d, J = 6.6 Hz, 6H), 1.39 (dd, J = 15.2, 7.2 Hz, 2H), 1.59 (sept, J = 6.6 Hz, 1H), 2.68-2.84 (m, 2H), 7.13 (br s, 6H).
(3-メチルブチル)ヒドラジン 硫酸塩
(3-Methylbutyl)hydrazine sulfate
1H-NMR (400 MHz, DMSO-d6) δ: 0.87 (6H, d, J = 6.6 Hz), 1.36-1.42 (2H, m), 1.55-1.63 (1H, m), 2.88 (2H, t, J = 8.0 Hz), 7.85 (5H, br).
文献記載(Organometallics, 6(10), 1987, 2079)の方法によって合成した化合物(Ihh)(637mg,3.8mmol)のテトラヒドロフラン(8.7mL)溶液に室温でボラン・テトラヒドロフラン錯体(1.1mol/L,8.7mL,9.6mmol)を加え、反応混合物を室温で1夜間攪拌した。メタノール(5mL)を加え、発泡が収まったら溶媒を減圧留去し、得られた濃縮残渣にクロロホルムとメタノールの混合溶液(9:1)に溶解させてシリカゲルでろ過後、ろ液を濃縮した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(クロロホルム:メタノール=99:1→90:10)でカラムすることで化合物(IIhh)(420mg,84%)を無色油状物として得た。
参考例43と同様の方法により化合物(IVhh)を得た。
1H-NMR (300 MHz, CD3OD) δ: 1.51-1.80 (6H, m), 1.93 (2H, m), 3.16 (2H, m), 3.23 (3H, s). 5H消失(NH, NH2, 2HCl)
[(1-メトキシシクロヘキシル)メチル]ヒドラジン 二塩酸塩
[(1-Methoxycyclohexyl)methyl]hydrazine dihydrochloride
1H-NMR (300 MHz, CD3OD) δ: 1.36-1.61 (8H, m), 1.79 (2H, m), 3.07 (2H, s), 3.22 (3H, s). 5H消失(NH, NH2, 2HCl)
参考例71
(3-メトキシブチル)ヒドラジン 二塩酸塩
(3-Methoxybutyl)hydrazine dihydrochloride
(2-シクロプロピルエチル)ヒドラジン 二塩酸塩
(2-Cyclopropylethyl)hydrazine dihydrochloride
マグネシウム(729mg,33mmol)のテトラヒドロフラン(3mL)懸濁溶液に化合物(Ikk)(1.5g)を加えた。引き続き化合物(Ikk)(3・45g)の無水テトラヒドロフラン(40mL)溶液を滴下し、40分間攪拌した。反応混合物にドライアイス(5g)を加え、反応混合物をゆっくり室温に昇温させながら3時間攪拌した。1N塩酸を加え、酢酸エチルで抽出し、有機層を飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥し、溶媒を減圧留去することで化合物(IIkk)の粗生成物(3.80g)を無色油状物として得た。
化合物(IIkk)の粗生成物(2.6g,20mmol相当)をテトラヒドロフラン(40mL)に溶解させて、氷冷しながらボラン・テトラヒドロフラン錯体(0.9N-テトラヒドロフラン溶液,60mmol相当)を加え、反応混合物をそのまま1時間攪拌した。1N塩酸を加えてテトラヒドロフランを減圧留去し、得られた濃縮残渣を酢酸エチルで抽出した。有機層を飽和重曹水、飽和食塩水の順に洗浄し、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去することで化合物(IIIkk)の粗生成物(2.96g)を得た。これをさらに精製することなくトリエチルアミン(3.5mL,25mmol)とともにテトラヒドロフラン(40mL)に溶解させて、氷冷しながらメタンスルホニルクロライド(1.7mL,22mmol)を加え、反応混合物を30分間攪拌した。水を加えて、酢酸エチルで抽出し、有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣(4.35g)をヒドラジン1水和物(6.0g,120mmol)とともにエタノール(20mL)に溶解させて、50℃で3時間攪拌した。室温に冷却後、水を加えてクロロホルムで抽出し、有機層を水で洗浄後、無水硫酸ナトリウムで乾燥した。有機層に4N-塩化水素-1,4-ジオキサン溶液を加えて溶媒を減圧留去し、得られた濃縮残渣に2-プロパノール(10mL)およびn-ヘキサン(100mL)を加えて超音波照射した。得られた沈殿をろ取することで化合物(IVkk)(612mg,10%)を白色粉末として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 0.80 (6H, t, J = 7.5 Hz), 1.18-1.35 (5H, m), 1.45-1.55 (2H, m), 2.86 (2H, d, J = 7.5 Hz), 7.00 (5H, br).
参考例74
tert-ブチル {[1-(2-シクロプロピルエチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカーバメート
tert-Butyl {[1-(2-cyclopropylethyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}methylcarbamate
tert-ブチル ({1-[(1-メトキシシクロペンチル)メチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)メチルカーバメート
tert-Butyl ({1-[(1-methoxycyclopentyl)methyl]-5-oxo-4,5-dihydro-1H-
pyrazol-3-yl}methyl)methylcarbamate
tert-ブチル ({1-[(1-メトキシシクロヘキシル)メチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)メチルカーバメート
tert-Butyl ({1-[(1-methoxycyclohexyl)methyl]-5-oxo-4,5-dihydro-1H-pyrazol-
3-yl}methyl)methylcarbamate
tert-ブチル {[1-(3-メトキシブチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカーバメート
tert-Butyl {[1-(3-methoxybutyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]methyl}-methylcarbamate
tert-ブチル {[1-(3-エチルペンチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}メチルカーバメート
tert-Butyl {[1-(3-ethylpentyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]methyl}-methylcarbamate
tert-ブチル ({1-[2-(1-ヒドロキシシクロペンチル)エチル]-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル}メチル)メチルカーバメート
tert-Butyl ({1-[2-(1-hydroxycyclopentyl)ethyl]-5-oxo-4,5-dihydro-1H-
pyrazol-3-yl}methyl)methylcarbamate
水素化リチウムアルミニウム(1.83g,48mmol)の無水テトラヒドロフラン(mL)懸濁溶液に、文献記載の方法(ジャーナルオブオーガニックケミストリー,69(3),2004,997)によって合成した化合物(Imm)(4.16g,24mmol)の無水テトラヒドロフラン(mL)溶液を加熱還流下で滴下し、反応混合物を1時間加熱還流した。氷浴で冷却しながら飽和硫酸ナトリウム水溶液(7.3mL)を加え、ゆっくり室温に昇温させながら2時間攪拌した。さらに無水硫酸ナトリウムを加えて固形物をろ別し、ろ液を濃縮することで得た濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=1:4→酢酸エチル→クロロホルム:メタノール=10:1)で精製することで化合物(IImm)(1.04g,66%)を無色油状物として得た。
化合物(IImm)(0.97g,7.5mmol)とトリエチルアミン(1.56g,11mmol)のジクロロメタン(15mL)溶液に氷冷しながらメタンスルホニルクロライド(692μL,8.9mmol)を5分間で加え、反応混合物を氷冷下20分間攪拌した。水を加えて、クロロホルムで抽出し、有機層を飽和食塩水で洗浄後、無水硫酸ナトリウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣(1.59g)を精製することなくヒドラジン1水和物(2.2mL,45mmol)とともにエタノール(7.5mL)に溶解させて、50℃で3時間攪拌した。室温に冷却後、水(1mL)を加えてクロロホルムで抽出し、有機層を水で洗浄後、無水硫酸ナトリウムで乾燥した。有機層に4N-塩化水素-1,4-ジオキサン溶液(7.5mL)を加えて溶媒を減圧留去しすることで化合物(IIImm)の粗生成物(2.05g)を得た。これをさらに精製することなくトリエチルアミン(1.3mL,9.0mmol)とともにエタノール(7ml)に溶解させて50℃で10分間攪拌後、参考例1に記載の化合物(IIa)(1.35g,5.2mmol)を加えて、反応混合物を70℃で30分間攪拌した。室温に冷却後、5%硫酸水素カリウム水溶液(50mL)を加えて酢酸エチル(100mL)で抽出し、有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィーによって精製することで標記化合物(IVmm)(217mg,37%)を淡褐色固体として得た。
1H-NMR (CDCl3) δ: 1.43-1.88 (8H, m), 1.47 (9H, s), 1.95 (2H, t, J = 6.9 Hz), 2.87 (3H, s), 3.23 (2H, s), 3.87 (2H, t, J = 6.9 Hz), 4.12 (2H, br s). 1H消失(OH)
tert-ブチル メチル[(5-オキソ-1-{[1-(トリフルオロメチル)シクロプロピル]メチル}-4,5-ジヒドロ-1H-ピラゾール-3-イル)メチル]カーバメート
tert-Butyl methyl[(5-oxo-1-{[1-(trifluoromethyl)cyclopropyl]methyl}-4,5-
dihydro-1H-pyrazol-3-yl)methyl]carbamate
水素化リチウムアルミニウム(903mg,23.8mmol)のテトラヒドロフラン(40mL)懸濁溶液に、化合物(Inn)(2.00g,11.9mmol)を氷冷下滴下し、反応混合物を氷冷下1時間攪拌した。水(0.9mL)、15%水酸化ナトリウム水溶液(0.9mL)を反応混合物に加え、さらに水(4.5mL)を加えて、ゆっくり室温に昇温させながら攪拌し、生じた沈殿をろ別した。ろ液を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去することで化合物(IInn)の粗生成物(1.31g,9.4mmol相当)を得た。これをさらに精製することなくトリエチルアミン(2.0mL,14mmol)とともにテトラヒドロフラン(19mL)溶液に溶解させ、氷冷下メタンスルホニルクロライド(871μL,11mmol)を加え、反応混合物をそのまま1.5時間攪拌した。酢酸エチルおよび水を加えて分液し、有機層を飽和食塩水で洗浄後、無水硫酸ナトリウムで乾燥した。溶媒を減圧留去することで化合物(IIInn)の粗生成物(1.77g)を得た。これをさらに精製することなくヒドラジン・1水和物(2.2mL,45mmol)とともにエタノール(7mL)に溶解させて、反応混合物を℃で3時間攪拌した。室温に冷却後、クロロホルム(40mL)および水(2mL)を加えて分液し、クロロホルム層を水(2mL)で洗浄し、無水硫酸ナトリウムで乾燥した。引き続き、10%塩化水素-メタノール溶液(20mL)を加えて溶媒を減圧留去し、得られた濃縮残渣にジエチルエーテル(3mL)を加えて生じた沈殿をろ取し、減圧乾燥することで化合物(IVnn)(1.00g,44%)を得た。
参考例1に記載の方法と同様にして化合物(Vnn)を得た。
1H-NMR (300 MHz, CDCl3) δ: 0.87-0.95 (m, 2H), 1.00-1.08 (m, 2H), 1.47 (s, 9H), 2.86 (s, 3H), 3.22 (s, 2H), 3.87 (s, 2H), 4.11 (br s, 2H).
参考例80と同様の方法により参考例81~82の化合物を製造した。
tert-ブチル メチル[(5-オキソ-1-{[1-(トリフルオロメチル)シクロブチル]メチル}-4,5-ジヒドロ-1H-ピラゾール-3-イル)メチル]カーバメート
tert-Butyl methyl[(5-oxo-1-{[1-(trifluoromethyl)cyclobutyl]methyl}-4,5-
dihydro-1H-pyrazol-3-yl)methyl]carbamate
tert-ブチル メチル[(5-オキソ-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-4,5-ジヒドロ-1H-ピラゾール-3-イル)メチル]カーバメート
tert-Butyl methyl[(5-oxo-1-{[1-(trifluoromethyl)cyclopentyl]methyl}-4,5-
dihydro-1H-pyrazol-3-yl)methyl]carbamate
参考例83
tert-ブチル メチル{1-[1-(3-メチルブチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]エチル}カーバメート
tert-Butyl methyl{1-[1-(3-methylbutyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-ethyl}carbamate
tert-ブチル メチル{1-[1-(4-メチルペンチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]エチル}カーバメート
tert-Butyl methyl{1-[1-(4-methylpentyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-
yl]ethyl}carbamate
エチル 1-(シクロペンチルメチル)-5-ヒドロキシ-1H-ピラゾール-3-カルボキシレート
Ethyl 1-(cyclopentylmethyl)-5-hydroxy-1H-pyrazole-3-carboxylate
1H-NMR (300 MHz, DMSO) δ: 1.16-1.37 (m, 5H), 1.39-1.68 (m, 6H), 2.22-2.43 (m, 1H), 3.82 (d, J = 7.5 Hz, 2H), 4.19 (q, J = 7.1 Hz, 2H), 5.74 (s, 1H), 11.34 (br s, 1H).
tert-ブチル メチル{[1-(3-メチルブチル)-5-オキソ-4,5-ジヒドロ-1H-ピラゾール-3-イル]メチル}カルバメート
tert-Butyl methyl{[1-(3-methylbutyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]-methyl}carbamate
エチル 5-ヒドロキシ-1-(3-メチルブチル)-1H-ピラゾール-3-カルボキシレート
Ethyl 5-hydroxy-1-(3-methylbutyl)-1H-pyrazole-3-carboxylate
1H-NMR (300 MHz, DMSO) δ: 0.88 (d, J = 6.2 Hz, 6H), 1.24 (t, J = 7.1 Hz, 3H), 1.37-1.53 (m ,1H), 1.57 (dd, J = 14.3, 7.2 Hz, 2H), 3.91 (t, J = 7.2 Hz, 2H), 4.19 (q, J = 7.1 Hz, 2H), 5.74 (s, 1H), 11.37 (br s, 1H).
1-[1-ベンジル-5-(ベンジルオキシ)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[1-Benzyl-5-(benzyloxy)-1H-pyrazol-3-yl]-N-methylmethanamine hydrochloride
ベンジルヒドラジンと化合物(Ib)を用いて参考例31の工程(i)と同様の方法により製造した化合物(IIIb’)(710mg,2.9mmol)および炭酸カリウム(418mg,3.0mmol)のDMF(8.6mL)溶液に室温でベンジルブロミド(360μL,3.0mmol)を加え、反応混合物を室温で1夜間攪拌した。塩をろ別し、溶媒を減圧留去することで化合物(IVb)の粗生成物を得た。これをさらに精製することなくテトラヒドロフラン(14mL)に溶解させて、0℃で水素化リチウムアルミニウム(131mg,3.5mmol)を少しずつ加え、反応混合物を30分間攪拌した。反応溶液に水(150μL)、2mol/L水酸化ナトリウム水溶液(150μL)および水(450μL)を加え、室温で攪拌して生じた沈殿をセライトろ過にてろ去した。ろ液を濃縮後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=50:50~酢酸エチル)で精製して、化合物(Vb)(608mg,72%)を得た。
化合物(Vb)(607mg,2.1mmol)およびトリエチルアミン(282μL,2.0mmol)のジクロロメタン(6.2mL)溶液に0℃でメタンスルホニルクロライド(239μL,3.1mmol)を加え、反応混合物をそのまま30分間攪拌した。ひきつづき40%メチルアミン-メタノール溶液(6.2mL)を少しずつ加え、反応混合物をゆっくり室温に昇温させながら1夜間攪拌した。飽和重曹水を加えてクロロホルムで抽出し、有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去することで粗生成物を得た。さらに精製することなく粗生成物とトリエチルアミン(282μL,2.0mmol)のジクロロメタン(10mL)混合溶液に室温でジ-tert-ブチル ジカーボネート(900mg,4.1mmol)を加え、反応混合物を室温で30分間攪拌した。飽和重曹水を加えてクロロホルムで抽出し、有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去することで得た濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=95:5~60:40)で精製して、化合物(VIIb)(643mg,76%)を得た。
化合物(VIIb)(120mg,0.29mmol)のクロロホルム(0.3mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(0.9mL)を加え、反応溶液を室温で1時間攪拌した。溶媒を減圧留去し、濃縮残渣にジエチルエーテルを加えてデカンテーションし、得られた固体を減圧留去することで標記化合物(VIb’)(102mg,定量的)を白色粉末として得た。
1H-NMR (300 MHz, CD3OD) δ: 2.67 (3H, s), 4.05 (2H, br s), 5.17 (2H, br s), 5.18 (2H, br s), 5.85 (1H, s), 7.17 (2H, dd, J = 7.3, 2.2 Hz), 7.25-7.31 (3H, m), 7.33 (5H, br s).
Obs MS [M+1]: 308.4
1-[5-(ベンジルオキシ)-1-(2-フェニルエチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン
1-[5-(Benzyloxy)-1-(2-phenylethyl)-1H-pyrazol-3-yl]-N-methylmethanamine
1H-NMR (400 MHz, CDCl3) δ: 2.47 (3H, s), 3.06 (2H, t, J = 7.4 Hz), 3.67 (2H, s), 4.15 (2H, t, J = 7.4 Hz), 4.88 (2H, s), 5.49 (1H, s), 7.08 (2H, dt, J = 7.1, 2.3 Hz), 7.17-7.28 (4H, m), 7.32-7.41 (4H, m).
Obs MS [M+1]: 322.4
1-[5-(ベンジルオキシ)-1-(3-フェニルプロピル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン
1-[5-(Benzyloxy)-1-(3-phenylpropyl)-1H-pyrazol-3-yl]-N-methylmethanamine
1H-NMR (400 MHz, CDCl3) δ: 2.04-2.14 (2H, m), 2.46 (3H, s), 2.56-2.62 (2H, m), 3.65 (2H, s), 3.96 (2H, t, J = 7.1 Hz), 5.05 (2H, s), 5.55 (1H, s), 7.12-7.44 (10H, m).
1-[5-(ベンジルオキシ)-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン
1-[5-(Benzyloxy)-1-(cyclopentylmethyl)-1H-pyrazol-3-yl]-N-methyl-methanamine
1H-NMR (400 MHz, CDCl3) δ: 1.20-1.29 (2H, m), 1.47-1.69 (6H, m), 2.35-2.44 (1H, m), 2.45 (3H, br s), 3.64 (2H, s), 3.84 (2H, d, J = 7.6 Hz), 5.05 (2H, s), 5.53 (1H, s), 7.34-7.42 (5H, m).
Obs MS [M+1]: 300.3
1-[5-(ベンジルオキシ)-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン
1-[5-(Benzyloxy)-1-(cyclohexylmethyl)-1H-pyrazol-3-yl]-N-methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 0.94 (2H, dd, J = 23.6, 11.5 Hz), 1.13-1.20 (3H, m), 1.53-1.72 (5H, m), 1.79-1.91 (1H, m), 2.46 (3H, s), 3.64 (2H, s), 3.75 (2H, d, J = 7.3 Hz), 5.05 (2H, s), 5.52 (1H, s), 7.35-7.40 (5H, m).
Obs MS [M+1]: 314.3
1-[5-(ベンジルオキシ)-1-(シクロヘプチルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン
1-[5-(Benzyloxy)-1-(cycloheptylmethyl)-1H-pyrazol-3-yl]-N-methyl-methanamine
1H-NMR (300 MHz, CDCl3) δ: 1.12-1.21 (2H, m), 1.41-1.57 (10H, m), 2.06-2.10 (1H, m), 2.45 (3H, s), 3.64 (2H, s), 3.73 (2H, d, J = 7.5 Hz), 5.05 (2H, s), 5.52 (1H, s), 7.35-7.41 (5H, m).
Obs MS [M+1]: 328.6
1-[5-(ベンジルオキシ)-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン
1-[5-(Benzyloxy)-1-(tetrahydro-2H-pyran-2-ylmethyl)-1H-pyrazol-3-yl]-N-
methylmethanamine
1H-NMR (400 MHz, CDCl3) δ: 1.21-1.34 (1H, m), 1.37-1.61 (4H, m), 1.81 (1H, br d, J = 10.1 Hz), 2.45 (3H, br s), 3.39 (1H, td, J = 11.4, 2.6 Hz), 3.64 (2H, s), 3.66-3.78 (1H, m), 3.85 (1H, dd, J = 13.9, 5.9 Hz), 3.93-4.00 (1H, m), 4.06 (1H, dd, J = 13.8, 6.9 Hz), 5.07 (2H, s), 5.52 (1H, s), 7.33-7.41 (5H, m).
1-{1-ベンジル-5-[(2-クロロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-Benzyl-5-[(2-chlorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
参考例36で製造した化合物(VIIIb)(20mg,0.063mmol)と炭酸セシウム(31mg,0.95mmol)のDMF(0.2mL)溶液に0℃で2-クロロベンジルクロライド(12μL,0.095mmol)を加えて、反応混合物をゆっくり室温に昇温させながら1夜間攪拌した。塩をろ別後、ろ液を濃縮して、得られた濃縮残渣をPTLC(トルエン:酢酸エチル=30:70)で精製して、標記化合物(IIk)(24mg,85%)を得た。
化合物(IIk)(24mg,0.054mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(0.5mL)を加え、反応溶液を室温で30分間攪拌した。溶媒を減圧留去し、濃縮残渣にジエチルエーテルを加えてデカンテーションし、得られた固体を減圧留去することで標記化合物(IIIk)(20mg,97%)を白色粉末として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 2.54 (3H, br s), 4.00 (2H, s), 5.15 (2H, s), 5.26 (2H, s), 6.00 (1H, s), 7.15 (2H, td, 3.9, 2.0 Hz), 7.24-7.45 (5H, m), 7.53 (2H, dt, J = 7.5, 1.7 Hz), 8.91 (2H, br s).
Obs MS [M+1]: 342.3
下記の一般製造法に従って、表4に示すとおり実施例20~40の化合物を製造した。
化合物(IIIm)の一般製造法
参考例4で得られた化合物(Im)および対応するベンジルブロミドまたはベンジルクロライドを用いて化合物(IIIm)を製造した。工程(i)は方法A,B,Cいずれかの方法によって行った。
方法A:
参考例4で製造した化合物(Im)(20mg,0.063mmol)と炭酸セシウム(1.5当量,31mg,0.095mmol)のジメチルホルムアミド(0.2mL)溶液に0℃で対応するベンジルクロライド(1.5当量,0.095mmol)を加え反応混合物をゆっくり室温に昇温させながら2日間攪拌した。塩をろ去後、溶媒を減圧留去することで化合物(IIm)の粗生成物を得た。化合物(IIm)の粗生成物は必要に応じてシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=50:50)やPTLC(トルエン:酢酸エチル=70:30)で精製した。
化合物(Im)(100mg,0.31mmol)と酸化銀(79mg,0.34mmol)のアセトニトリル(1mL)溶液に室温で対応するベンジルブロミド(1.5当量,0.46mmol)のアセトニトリル(2mL)溶液を加え、反応混合物を室温で2時間攪拌した。溶液に酢酸エチルを加えて塩をろ別後、ろ液を濃縮することで化合物(IIm)の粗生成物を得た。化合物(IIm)の粗生成物は必要に応じてシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=50:50)やPTLC(トルエン:酢酸エチル=70:30)で精製した。
化合物(Im)(100mg,0.31mmol)と炭酸セシウム(1.5当量,151mg,0.46mmol)のアセトニトリル(1mL)溶液に室温で対応するベンジルブロミド(1.5当量,0.46mmol)のアセトニトリル(2mL)溶液を加え、反応混合物を室温で18時間攪拌した。溶液に酢酸エチルを加えて塩をろ別後、ろ液を濃縮することで化合物(IIm)の粗生成物を得た。化合物(IIm)の粗生成物は必要に応じてシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=50:50)やPTLC(トルエン:酢酸エチル=70:30)で精製した。
化合物(IIm)をクロロホルム(1mL)に溶解させ、4mol/L 塩化水素 1,4-ジオキサン溶液(2mL)を室温で加え、反応混合物を2時間で攪拌後、溶媒を減圧留去した。得られた残渣にジエチルエーテルを加え、デカンテーション後、得られた固形物を減圧乾燥することで化合物(IIIm)の塩酸塩を得た。また濃縮残渣は必要に応じて逆相液体クロマトグラフィー(0.05%トリフルオロ酢酸-アセトニトリル/0.05%トリフルオロ酢酸/水)によって精製し、得られた化合物(IIIm)の分画を通常の手法によってフリー化することで化合物(IIIm)のフリー塩基を得た。
装置:Parallex Flex(登録商標)(Biotage,Inc)
カラム:YMC Combiprep ODS-A 50×30mm I.D.
移動層 A液:0.07トリフルオロ酢酸-アセトニトリル
B液:0.1%トリフルオロ酢酸-H2O
A液とB液の混合比がA:B=1:99で開始し、11分でA:B=95:5となるようにA液の比率を1分間に8.55%ずつ上昇させた。
移動層流速:40 mL/分
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(Cyclohexylmethyl)-5-[(2-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine
1H-NMR (300 MHz, CDCl3) δ: 7.43 (ddd, 1H, J = 7.5, 7.5, 1.7 Hz), 7.39 - 7.30 (m, 1H), 7.17 (ddd, 1H, J = 7.5, 7.5, 1.1 Hz), 7.10 (ddd, 1H, J = 9.7, 8.4, 1.1 Hz), 5.60 (s, 1H), 5.12 (s, 2H), 3.74 (d, 2H, J = 7.2 Hz), 3.67 (s, 2H), 2.46 (s, 3H), 2.06 (brs, 1H), 1.92 - 1.75 (m, 1H), 1.75 - 1.51 (m, 5H), 1.29 - 1.04 (m, 3H), 1.02 - 0.84 (m, 2H).
1-{1-(シクロヘキシルメチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(Cyclohexylmethyl)-5-[(3-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine
1H-NMR (300 MHz, CDCl3) δ:7.36 (ddd, 1H, J = 7.9, 7.9, 5.8 Hz), 7.18 - 7.00 (m, 3H), 5.56 (s, 1H), 5.05 (s, 2H), 3.76 (d, 2H, J = 7.3 Hz), 3.68 (s, 2H), 2.46 (s, 3H), 1.94 - 1.76 (m, 1H), 1.75 - 1.54 (m, 5H), 1.30 - 1.05 (m, 3H), 1.03 - 0.86 (m, 2H).
1-{1-(シクロヘキシルメチル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(Cyclohexylmethyl)-5-[(4-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine
1H-NMR (300 MHz, CDCl3) δ:7.36 (dd, 2H, J = 8.8, 5.3 Hz), 7.09 (dd, 2H, J = 8.8, 8.8 Hz), 5.56 (s, 1H), 5.01 (s, 2H), 3.73 (d, 2H, J = 7.2 Hz), 3.67 (s, 2H), 2.46 (s, 3H), 2.27 (brs, 1H), 1.92 - 1.75 (m, 1H), 1.75 - 1.52 (m, 5H), 1.28 - 1.04 (m, 3H), 1.01 - 0.84 (m, 2H).
1-{5-[(2-クロロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2-Chlorobenzyl)oxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (400 MHz, DMSO-d6) δ: 0.89 (2H, br dd, J = 23.2, 12.0 Hz), 1.06-1.15 (3H, m), 1.47 (2H, d, J = 12.7 Hz), 1.60 (3H, t, J = 10.4 Hz), 1.71-1.74 (1H, m), 2.52 (3H, br s), 3.71 (2H, d, J = 7.1 Hz), 3.96 (2H, br s), 5.21 (2H, s), 5.93 (1H, s), 7.38-7.45 (2H, m), 7.54 (1H, dd, J = 7.3, 1.5 Hz), 7.60 (1H, dd, J = 6.8, 2.4 Hz), 8.92 (2H, s).
1-{5-[(3-クロロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(3-Chlorobenzyl)oxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (400 MHz, DMSO-d6) δ: 0.92 (2H, br q, J = 11.5 Hz), 1.06-1.19 (3H, m), 1.49 (2H, d, J = 12.4 Hz), 1.56-1.68 (3H, m), 1.69-1.79 (1H, m), 2.51 (3H, br s), 3.75 (2H, d, J = 7.1 Hz), 3.95 (2H, br s), 5.19 (2H, s), 5.89 (1H, s), 7.42-7.46 (3H, m), 7.52 (1H, br s), 9.04 (2H, br s).
1-{5-[(4-クロロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(4-Chlorobenzyl)oxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (400 MHz, DMSO-d6) δ: 0.89 (2H, br dd, J = 22.0, 12.2 Hz), 1.05-1.18 (3H, m), 1.47 (2H, br d, J = 11.5 Hz), 1.53-1.76 (4H, m), 2.51 (3H, br s), 3.72 (2H, d, J = 6.8 Hz), 3.95 (2H, br s), 5.15 (2H, s), 5.85 (1H, s), 7.47 (4H, br d, J = 1.0 Hz), 8.92 (2H, br s).
1-{1-(シクロヘキシルメチル)-5-[(2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(2-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.90 (2H, br q, J = 10.9 Hz), 1.03-1.19 (3H, m), 1.49 (2H, br d, J = 13.2 Hz), 1.54-1.78 (4H, m), 2.35 (3H, s), 2.53 (3H, br s), 3.71 (2H, d, J = 7.2 Hz), 3.97 (2H, s), 5.15 (2H, s), 5.96 (1H, s), 7.19-7.33 (3H, m), 7.40 (1H, br d, J = 7.3 Hz), 9.01 (2H, br s).
1-{1-(シクロヘキシルメチル)-5-[(3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(3-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.92 (2H, br q, J = 11.2 Hz), 1.08-1.21 (3H, m), 1.49 (2H, br d, J = 13.2 Hz), 1.56-1.80 (4H, m), 2.32 (3H, s), 2.50 (3H, br s), 3.73 (2H, d, J = 7.2 Hz), 3.95 (2H, br t, J = 5.0 Hz), 5.12 (2H, s), 5.87 (1H, s), 7.16-7.32 (4H, m), 8.97 (2H, br s).
1-{1-(シクロヘキシルメチル)-5-[(4-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(4-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.90 (2H, br dd, J = 23.0, 11.6 Hz), 1.05-1.17 (3H, m), 1.48 (2H, br d, J = 12.7 Hz), 1.55-1.75 (4H, m), 2.31 (3H, s), 2.51 (3H, br s), 3.71 (2H, d, J = 7.1 Hz), 3.95 (2H, br s), 5.10 (2H, s), 5.89 (1H, s), 7.22 (2H, d, J = 7.8 Hz), 7.33 (2H, d, J = 8.0 Hz), 9.01 (2H, br s).
1-{1-(シクロヘキシルメチル)-5-[(2,4-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(Cyclohexylmethyl)-5-[(2,4-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 0.83-1.02 (2H, m), 1.05-1.29 (3H, m), 1.49-1.91 (6H, m), 2.46 (3H, s), 3.66 (2H, s), 3.72 (2H, d, J = 7.3 Hz), 5.06 (2H, s), 5.57 (1H, s), 6.80-6.96 (2H, m), 7.34-7.46 (1H, m).
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(2-Chloro-4-fluorobenzyl)oxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine
1H-NMR (400 MHz, CDCl3) δ: 0.87-1.01 (2H, m), 1.07-1.28 (3H, m), 1.53-1.94 (6H, m), 2.48 (3H, s), 3.69 (2H, s), 3.75 (2H, d, J = 7.3 Hz), 5.10 (2H, s), 5.60 (1H, s), 7.00-7.07 (1H, m), 7.16-7.1 (1H, m), 7.42-7.48 (1H, m).
1-{1-(シクロヘキシルメチル)-5-[(4-フルオロ-2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(Cyclohexylmethyl)-5-[(4-fluoro-2-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine
1H-NMR (400 MHz, CDCl3) δ: 0.84-0.99 (2H, m), 1.05-1.27 (3H, m), 1.50-1.90 (6H, m), 2.36 (3H, s), 2.48 (3H, s), 3.67 (2H, s), 3.71 (2H, d, J = 7.3 Hz), 4.98 (2H, s), 5.58 (1H, s), 6.87-6.99 (2H, m), 7.28-7.34 (1H, m).
2-[({1-(シクロヘキシルメチル)-3-[(メチルアミノ)メチル]-1H-ピラゾール-5-イル}オキシ)メチル]-5-フルオロベンゾニトリル 塩酸塩
2-[({1-(Cyclohexylmethyl)-3-[(methylamino)methyl]-1H-pyrazol-5-yl}oxy)-methyl]-5-fluorobenzonitrile hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.77-1.00 (2H, m), 1.01-1.22 (3H, m), 1.41-1.53 (2H, m), 1.53-1.68 (3H, m), 1.68-1.82 (1H, m), 2.54 (3H, t, J = 5.3 Hz), 3.73 (2H, d, J = 7.0 Hz), 3.98 (2H, t, J = 5.7 Hz), 5.30 (2H, s), 5.97 (1H, s), 7.68 (1H, ddd, J = 8.6, 8.6, 2.8 Hz), 7.83 (1H, dd, J = 8.6, 5.5 Hz), 8.00 (1H, dd, J = 8.6, 2.8 Hz), 8.95 (2H, brs).
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.80-0.98 (2H, m), 1.03-1.21 (3H, m), 1.42-1.52 (2H, m), 1.54-1.80 (4H, m), 2.52 (3H, t, J = 5.3 Hz), 3.72 (2H, d, J = 7.2 Hz), 3.97 (2H, t, J = 5.6 Hz), 5.20 (2H, s), 5.96 (1H, s), 7.26-7.48 (3H, m), 9.03 (2H, brs).
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.81-1.00 (2H, m), 1.04-1.22 (3H, m), 1.41-1.53 (2H, m), 1.54-1.80 (4H, m), 2.52-2.56 (3H, m), 3.72 (2H, d, J = 7.2 Hz), 3.94-4.03 (2H, m), 5.22 (2H, s), 5.93 (1H, s), 7.36 (1H, t, J = 9.2 Hz), 7.49-7.57 (1H, m), 7.62-7.68 (1H, m), 8.92 (2H, br s).
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロ-5-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(2-fluoro-5-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.79-0.99 (2H, m), 1.02-1.21 (3H, m), 1.40-1.52 (2H, m), 1.52-1.79 (4H, m), 2.29 (3H, s), 2.53 (3H, brs), 3.70 (2H, d, J = 7.0 Hz), 3.96 (2H, t, J = 5.5 Hz), 5.15 (2H, s), 5.96 (1H, s), 7.15 (1H, dd, J = 10.0, 8.5 Hz), 7.21-7.28 (1H, m), 7.35 (1H, dd, J = 7.2, 1.8 Hz), 9.06 (2H, brs).
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロ-5-メトキシベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(2-fluoro-5-methoxybenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (400 MHz, DMSO-d6) δ: 0.83-0.97 (2H, m), 1.03-1.19 (3H, m), 1.43-1.52 (2H, m), 1.53-1.78 (4H, m), 2.53 (3H, brs), 3.71 (2H, d, J = 7.1 Hz), 3.75 (3H, s), 3.97 (2H, t, J = 5.6 Hz), 5.17 (2H, s), 5.94 (1H, s), 6.98 (1H, ddd, J = 8.9, 8.9, 3.7 Hz), 7.09 (1H, dd, J = 6.0, 3.3 Hz), 7.21 (1H, dd, J = 9.3, 9.3 Hz), 8.99 (2H, brs).
1-{5-[(2-クロロ-5-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2-Chloro-5-fluorobenzyl)oxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.84-1.01 (2H, m), 1.04-1.22 (3H, m), 1.43-1.54 (2H, m), 1.55-1.83 (4H, m), 2.53 (3H, brs), 3.75 (2H, d, J = 7.2 Hz), 3.97 (2H, t, J = 5.0 Hz), 5.22 (2H, s), 5.95 (1H, s), 7.33 (1H, ddd, J = 8.5, 8.5, 3.0 Hz), 7.49 (1H, dd, J = 9.1, 3.0 Hz), 7.61 (1H, dd, J = 8.9, 5.0 Hz), 8.97 (2H, brs).
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジクロロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(2,5-dichlorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.83-1.00 (2H, m), 1.05-1.22 (3H, m), 1.43-1.54 (2H, m), 1.54-1.83 (4H, m), 2.53 (3H, brs), 3.74 (2H, d, J = 7.2 Hz), 3.98 (2H, t, J = 5.6 Hz), 5.22 (2H, s), 5.95 (1H, s), 7.52 (1H, dd, J = 8.6, 2.6 Hz), 7.60 (1H, d, J = 8.6 Hz), 7.68 (1H, d, J = 2.6 Hz), 8.98 (2H, brs).
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(2-Chloro-5-methylbenzyl)oxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 7.28 (d, 1H, J = 8.3 Hz), 7.26 (s, 1H), 7.10 (dd, 1H, J = 8.3, 1.7 Hz), 5.59 (s, 1H), 5.11 (s, 2H), 3.77 (d, 2H, J = 7.3 Hz), 3.68 (s, 2H), 2.47 (s, 3H), 2.34 (s, 3H), 1.99 (brs, 1H), 1.96-1.80 (m, 1H), 1.75-1.55 (m, 5H), 1.29-1.05 (m, 3H), 1.05-0.88 (m, 2H).
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(2-Chloro-5-methylbenzyl)oxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine
1H-NMR (400 MHz, CDCl3) δ: 0.91-1.02 (2H, m), 1.08-1.27 (3H, m), 1.59-1.74 (5H, m), 1.82-1.95 (1H, m), 2.46 (3H, s), 3.65 (2H, s), 3.78 (2H, d, J = 7.3 Hz), 3.80 (3H, s), 5.11 (2H, s), 5.56 (1H, s), 6.83 (1H, dd, J = 8.8, 3.1 Hz), 7.02 (1H, d, J = 3.1 Hz), 7.30 (1H, d, J = 8.8 Hz).
参考例4で得られた化合物および対応するベンジルブロミドまたはベンジルクロライドを用いて上記の実施例20~40に記載の方法によって表5に示すとおり実施例41~91の化合物を製造した。
参考例5で得られた化合物および対応するベンジルブロミドまたはベンジルクロライドを用いて上記の実施例20~40に記載の方法によって表6に示すとおり実施例92~114の化合物を製造した。
参考例2、3または9~13で得られた化合物および対応するベンジルブロミドまたはベンジルクロライドを用いて、上記の実施例20~40に記載の方法によって表7に示すとおり実施例115~134の化合物を製造した。
1-[5-(ベンジルオキシ)-1-(シクロプロピルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(cyclopropylmethyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.28-0.34 (2H, m), 0.47-0.54 (2H, m), 1.15-1.27 (1H, m), 2.63 (3H, br s), 3.81 (2H, d, J = 7.0 Hz), 4.09 (2H, br s), 5.09 (2H, s), 6.11 (1H, s), 7.35-7.42 (5H, m), 9.77 (2H, br s).
1-{1-(シクロプロピルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopropylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.28-0.34 (2H, m), 0.49-0.55 (2H, m), 1.15-1.28 (1H, m), 2.64 (3H, br s), 3.81 (2H, d, J = 7.0 Hz), 4.10 (2H, br s), 5.12 (2H, s), 6.14 (1H, s), 7.02-7.10 (2H, m), 7.11-7.18 (1H, m), 9.78 (2H, br s).
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロプロピルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(cyclopropylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.28-0.35 (2H, m), 0.48-0.56 (2H, m), 1.14-1.27 (1H, m), 2.64 (3H, br s), 3.81 (2H, d, J = 7.0 Hz), 4.10 (2H, br s), 5.11 (2H, s), 6.15 (1H, s), 7.06 (1H, br t, J = 9.0 Hz), 7.32 (1H, br ddd, J = 8.7, 4.5, 2.7 Hz), 7.41 (1H, br dd, J = 6.1, 2.7 Hz), 9.79 (2H, br s).
1-[5-(ベンジルオキシ)-1-(シクロブチルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(cyclobutylmethyl)-1H-pyrazol-3-yl]-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.67-1.84 (4H, m), 1.86-1.95 (2H, m), 2.50 (3H, br s), 2.59-2.72 (1H, m), 3.91 (2H, br d, J = 7.2 Hz), 3.93 (2H, br t, J = 5.6 Hz), 5.14 (2H, s), 5.91 (1H, s), 7.33-7.48 (5H, m), 9.10 (2H, br s).
1-{1-(シクロブチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclobutylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.70-1.92 (4H, m), 1.92-2.06 (2H, m), 2.61 (3H, br s), 2.73 (1H, br td, J = 14.8, 7.3 Hz), 3.95 (2H, d, J = 7.3 Hz), 4.09 (2H, br s), 5.11 (2H, s), 6.13 (1H, s), 7.01-7.11 (2H, m), 7.11-7.19 (1H, m), 9.79 (2H, s).
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロブチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(cyclobutylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.70-1.92 (4H, m), 1.94-2.04 (2H, m), 2.61 (3H, br s), 2.69-2.78 (1H, m), 3.95 (2H, d, J = 7.2 Hz), 4.09 (2H, br s), 5.10 (2H, s), 6.13 (1H, s), 7.06 (1H, t, J = 9.0 Hz), 7.33 (1H, ddd, J = 8.8, 4.5, 2.7 Hz), 7.42 (1H, dd, J = 6.2, 2.6 Hz), 9.79 (2H, br s).
参考例1で得られた化合物(IIIa)および対応するベンジルブロミドまたはベンジルクロライドを用いて上記の実施例20~40に記載の方法によって表8に示すとおり実施例135~191の化合物を製造した。
1-{1-(シクロペンチルメチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(Cyclopentylmethyl)-5-[(2-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.11-1.26 (2H, m), 1.46-1.68 (6H, m), 2.24-2.37 (1H, m), 2.70 (3H, s), 3.86 (2H, d, J = 7.6 Hz), 4.14 (2H, s), 5.15(2H, s), 5.91 (1H, s), 7.10 (1H, dd, J = 9.2, 9.2 Hz), 7.17 (1H, dd, J = 7.6, 7.6 Hz), 7.33-7.44 (2H, m), 9.15 (2H, brs).
1-{1-(シクロペンチルメチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(3-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.16-1.27 (2H, m), 1.44-1.61 (6H, m), 2.22-2.34 (1H, m), 2.51 (3H, s), 3.82 (2H, d, J = 7.5 Hz), 3.95 (2H, br t, J = 5.7 Hz), 5.18 (2H, s), 5.85 (1H, s), 7.19 (1H, ddt, J = 12.5, 6.9, 2.3 Hz), 7.26-7.31 (2H, m), 7.42-7.50 (1H, m), 8.94 (2H, br s).
1-{1-(シクロペンチルメチル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(Cyclopentylmethyl)-5-[(4-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.12-1.28 (2H, m), 1.44-1.70 (6H, m), 2.25-2.39 (1H, m), 2.67 (3H, s), 3.86 (2H, d, J = 7.6 Hz), 4.10 (2H, s), 5.03 (2H, s), 5.85(1H, s), 7.08 (2H, dd, J = 8.8, 8.8 Hz), 7.35 (2H, dd, J = 8.8, 3.2 Hz), 9.58 (2H, brs).
1-{5-[(2-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{5-[(2-Chlorobenzyl)oxy]-1-(cyclopentylmethyl)-1H-pyrazol-3-yl}-N-methyl-methanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.13-1.30 (2H, m), 1.44-1.71 (6H, m), 2.27-2.40 (1H, m), 2.68 (3H, s), 3.88 (2H, d, J = 7.6 Hz), 4.12 (2H, s), 5.16 (2H, s), 5.90(1H, s), 7.24-7.37 (2H, m), 7.38-7.48 (2H, m), 9.42 (2H, brs).
1-{5-[(3-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(3-Chlorobenzyl)oxy]-1-(cyclopentylmethyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.17-1.27 (2H, m), 1.44-1.61 (6H, m), 2.25-2.34 (1H, m), 2.51 (3H, br s), 3.82 (2H, d, J = 7.5 Hz), 3.96 (2H, br t, J = 5.7 Hz), 5.18 (2H, s), 5.84 (1H, s), 7.39-7.45 (3H, m), 7.51 (1H, br s), 8.89 (2H, br s).
1-{5-[(4-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(4-Chlorobenzyl)oxy]-1-(cyclopentylmethyl)-1H-pyrazol-3-yl}-N-methyl-methanamine
1H-NMR (400 MHz, CDCl3) δ: 1.11-1.29 (2H, m), 1.40-1.68 (6H, m), 2.26-2.42 (1H, m), 2.58 (3H, s), 3.82 (2H, d, J = 7.6 Hz), 4.03 (2H, s), 5.03 (2H, s), 6.02 (1H, s), 7.32 (2H, d, J = 8.4 Hz), 7.35 (2H, d, J = 8.4 Hz).
1-{1-(シクロペンチルメチル)-5-[(2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(Cyclopentylmethyl)-5-[(2-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.11-1.28 (2H, m), 1.46-1.71 (6H, m), 2.25-2.43 (1H, m), 2.34 (3H, s), 2.72 (3H, s), 3.88 (2H, d, J = 7.6 Hz), 4.16 (2H, s), 5.09 (2H, s), 5.93 (1H, s), 7.17-7.37 (4H, m), 9.23 (2H, brs).
1-{1-(シクロペンチルメチル)-5-[(3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(3-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.17-1.27 (2H, m), 1.44-1.61 (6H, m), 2.24-2.34 (4H, m), 2.51 (3H, s), 3.80 (2H, d, J = 7.3 Hz), 3.95 (2H, br t, J = 5.7 Hz), 5.11 (2H, s), 5.86 (1H, s), 7.15-7.31 (4H, m), 8.95 (2H, br s).
1-{1-(シクロペンチルメチル)-5-[(4-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(Cyclopentylmethyl)-5-[(4-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.11-1.27 (2H, m), 1.44-1.71 (6H, m), 2.25-2.42 (1H, m), 2.34 (3H, s), 2.70 (3H, s), 3.88 (2H, d, J = 7.6 Hz), 4.13 (2H, s), 5.05 (2H, s), 5.87 (1H, s), 7.20 (2H, d, J = 7.8 Hz), 7.26 (2H, d, J = 7.8 Hz), 9.18 (2H, brs).
1-{1-(シクロペンチルメチル)-5-[(2,4-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,4-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.04-1.22 (2H, m), 1.36-1.60 (6H, m), 2.17-2.32 (1H, m), 2.59 (3H, s), 3.76 (2H, d, J = 6.8 Hz), 4.01 (2H, s), 5.00 (2H, s), 5.80 (1H, s), 6.76-6.90 (2H, m), 7.32 (1H, dd, J = 14.4, 8.4 Hz), 9.36 (2H, brs).
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{5-[(2-Chloro-4-fluorobenzyl)oxy]-1-(cyclopentylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.07-1.23 (2H, m), 1.38-1.63 (6H, m), 2.21-2.35 (1H, m), 2.59 (3H, s), 3.78 (2H, d, J = 7.6 Hz), 4.01 (2H, s), 5.04 (2H, s), 5.79 (1H, s), 6.96 (1H, ddd, J = 8.6, 8.6, 2.6 Hz), 7.12 (1H, dd, J = 8.6, 2.6 Hz), 7.36 (1H, dd, J = 8.6, 6.0 Hz), 9.43 (2H, brs).
1-{1-(シクロペンチルメチル)-5-[(4-フルオロ-2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(Cyclopentylmethyl)-5-[(4-fluoro-2-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.05-1.23 (2H, m), 1.37-1.61 (6H, m), 2.20-2.37 (1H, m), 2.27 (3H, s), 2.57 (3H, s), 3.75 (2H, d, J = 7.6 Hz), 3.99 (2H, s), 4.93 (2H, s), 5.78 (1H, s), 6.78-6.91 (2H, m), 7.23 (1H, dd, J = 8.4, 6.0 Hz), 9.46 (2H, brs).
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.10-1.30 (2H, m), 1.45-1.72 (6H, m), 2.20-2.35 (1H, m), 2.51 (3H, t, J = 5.5 Hz), 3.79 (2H, d, J = 7.3 Hz), 3.96 (2H, t, J = 5.7 Hz), 5.19 (2H, s), 5.94 (1H, s), 7.24-7.48 (3H, m), 9.00 (2H, br s).
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(cyclopentylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.15-1.27 (2H, m), 1.46-1.59 (6H, m), 2.27 (1H, q, J = 7.0 Hz), 2.54 (3H, br t, J = 5.6 Hz), 3.80 (2H, d, J = 7.5 Hz), 3.99 (2H, t, J = 5.5 Hz), 5.22 (2H, s), 5.91 (1H, s), 7.36 (1H, t, J = 9.2 Hz), 7.51-7.56 (1H, m), 7.65 (1H, dd, J = 6.5, 2.7 Hz), 8.81 (2H, br s).
1-{1-(シクロペンチルメチル)-5-[(2-フルオロ-5-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(Cyclopentylmethyl)-5-[(2-fluoro-5-methylbenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 1.10-1.30 (2H, m), 1.42-1.71 (6H, m), 2.20-2.42 (1H, m), 2.32 (3H, s), 2.67 (3H, s), 3.85 (2H, d, J = 7.8 Hz), 4.10 (2H, s), 5.08 (2H, s), 5.88 (1H, s), 6.97 (1H, dd, J = 9.6, 9.6 Hz), 7.11-7.23 (2H, m), 9.30 (2H, brs).
1-{5-[(2-クロロ-5-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{5-[(2-Chloro-5-fluorobenzyl)oxy]-1-(cyclopentylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 1.12-1.33 (2H, m), 1.43-1.71 (6H, m), 2.27-2.45 (1H, m), 2.61 (3H, s), 3.87 (2H, d, J = 7.5 Hz), 4.10 (2H, s), 5.10 (2H, s), 5.81 (1H, s), 7.00 (1H, ddd, J = 8.5, 8.5, 3.0 Hz), 7.16 (1H, dd, J = 9.0, 3.0 Hz), 7.36 (1H, dd, J = 8.5, 4.8 Hz), 9.55 (2H, brs).
1-{1-(シクロペンチルメチル)-5-[(2,5-ジクロロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,5-dichlorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 1.11-1.33 (2H, m), 1.40-1.72 (6H, m), 2.27-2.45 (1H, m), 2.60 (3H, s), 3.86 (2H, d, J = 7.5 Hz), 4.03 (2H, s), 5.08 (2H, s), 5.83 (1H, s), 7.26 (1H, dd, J = 8.4, 2.2 Hz), 7.33 (1H, d, J = 8.4 Hz), 7.42 (1H, d, J = 2.2 Hz), 9.57 (2H, brs).
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{5-[(2-Chloro-5-methylbenzyl)oxy]-1-(cyclopentylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine trifluoroacetate
1H-NMR (400 MHz, CDCl3) δ: 1.16-1.31 (2H, m), 1.50-1.73 (6H, m), 2.28-2.43 (1H, m), 2.33 (3H, s), 2.72 (3H, s), 3.89 (2H, d, J = 7.6 Hz), 4.13 (2H, s), 5.04 (2H, s), 5.87 (1H, s), 7.18 (1H, d, J = 8.0 Hz), 7.27 (1H, dd, J = 8.0, 2.0 Hz), 7.35 (1H, d, J = 2.0 Hz), 9.33 (2H, brs).
1-[5-(ベンジルオキシ)-1-(2-シクロペンチルエチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン
1-[5-(Benzyloxy)-1-(2-cyclopentylethyl)-1H-pyrazol-3-yl]-N-methyl-methanamine
1H-NMR (300 MHz, CDCl3) δ: 1.09 (2H, m), 1.41-1.89 (9H, m), 2.67 (3H, s), 4.04 (2H, t, J = 7.2 Hz), 4.20 (2H, s), 5.17 (2H, s), 6.43 (1H, s), 7.42-7.39 (5H, m), 10.06 (2H, s).
Obs MS [M+1]: 314.3
1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(2-Cyclopentylethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 1.07 (2H, m), 1.42-1.84 (9H, m), 2.63 (3H, br s), 3.96 (2H, t, J = 7.2 Hz), 4.11 (2H, br s), 5.13 (2H, s), 6.20 (1H, s), 7.05 (2H, m), 7.15 (1H, m), 9.85 (2H, br s).
Obs MS [M+1]: 350.4
1-{1-(2-シクロペンチルエチル)-5-[(2,4-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(2-Cyclopentylethyl)-5-[(2,4-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 1.07 (2H, s), 1.37-1.80 (7H, m), 1.88 (2H, m), 2.78 (3H, s), 4.15 (2H, t, J = 7.2 Hz), 4.40 (2H, s), 5.30 (2H, s), 6.92 (3H, m), 7.49 (1H, dd, J = 14.7, 8.4 Hz), 10.38 (2H, br s).
Obs MS [M+1]: 350.4
参考例36で得られた化合物および対応するベンジルブロミドを用いて上記の実施例20~40に記載の方法によって表9に示すとおり実施例195~197の化合物を製造した。工程(i)のベンジル化反応は実施例20~40の一般製造法に記載の方法Bを用いて行った。
1-[5-(ベンジルオキシ)-1-(2-フルオロベンジル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(2-fluorobenzyl)-1H-pyrazol-3-yl]-N-methylmethanamine hydrochloride
2-フルオロベンジルブロミド(2.0g,11mmol)とヒドラジン一水和物(3.1mL,63mmol)のエタノール(10mL)溶液を60℃で18時間攪拌した。溶媒を減圧留去し、得られた濃縮残渣をクロロホルム(40mL)で希釈して水(6mL)で2回洗浄し、有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をクロロホルム(6mL)に溶解させ、室温で4mol/L 塩化水素 1,4-ジオキサン溶液(12mL)を加え、溶液を室温で30分間攪拌後、溶媒を減圧留去した。得られた濃縮残渣を酢酸エチル:n-ヘキサン(2:1)混合溶液(20mL)を加えて懸濁させ、生じた沈殿をろ取し、減圧乾燥することで化合物(In)(1.68g,75%)を得た。
化合物(In)(1.0g,4.7mmol)、参考例1の工程(i)で製造した化合物(IIa)(1.22g,4.7mmol)およびトリエチルアミン(1.6mL,11mmol)のエタノール(9mL)溶液を80℃で5時間攪拌した。反応混合物を室温に冷却後、濃縮残渣に5%硫酸水素カリウム水溶液を加えて酢酸エチルで抽出し、全有機層を飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥し、溶媒を減圧留去した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=50:50)で精製して、化合物(IIIn)(970mg,62%)を淡褐色油状物として得た。
化合物(IIIn)(100mg,0.30mmol)および炭酸セシウム(146mg,0.45mmol)のアセトニトリル(1.5mL)溶液に室温でベンジルクロライド(41mg,0.33mmol)を加え、反応混合物を室温で17時間攪拌した。反応混合物を酢酸エチルで希釈し、塩をろ別後、ろ液を減圧留去した。得られた濃縮残渣をさらに精製することなくクロロホルム(1mL)に溶解させて、室温で4mol/L 塩化水素 1,4-ジオキサン溶液(4mL)を加え、溶液を室温で30分間攪拌後、溶媒を減圧留去した。得られた濃縮残渣を酢酸エチル:n-ヘキサン(5:1)混合溶液を加えて懸濁させ、生じた沈殿をろ取し、減圧乾燥することで標記化合物(62mg,59% 2工程の収率)を淡褐色粉末として得た。
Obs MS [M+1]: 350.4
参考例15~26で得られた化合物および対応するベンジルクロライドまたはベンジルブロマイドを用いて、実施例20~40に記載の方法と同様の方法によって表11に示すとおり実施例241~275の化合物を製造した。工程(i)のベンジル化は、実施例20~40の一般製造法に記載の方法BまたはCを用いて行った。
Obs MS [M+1]: 274.5
Obs MS [M+1]: 310.4
Obs MS [M+1]: 288.3
Obs MS [M+1]: 324.4
1H-NMR (300 MHz, DMSO-d6) δ: 0.77-0.84 (3H, m), 1.14-1.25 (6H, m), 1.59-1.69 (2H, m), 2.53 (3H, br t, J = 5.3 Hz), 3.88 (2H, br t, J = 7.0 Hz), 3.96 (2H, br t, J = 5.9 Hz), 5.16 (2H, s), 5.85 (1H, s), 7.35-7.47 (5H, m), 8.84 (2H, br s).
Obs MS [M+1]: 302.5
1H-NMR (300 MHz, DMSO-d6) δ: 0.76-0.83 (3H, m), 1.12-1.23 (6H, m), 1.57-1.68 (2H, m), 2.53 (3H, br t, J = 5.3 Hz), 3.87 (2H, br t, J = 6.8 Hz), 3.97 (2H, br t, J = 5.5 Hz), 5.20 (2H, s), 5.92 (1H, s), 7.26-7.39 (2H, m), 7.40-7.47 (1H, m), 8.91 (2H, br s).
Obs MS [M+1]: 338.4
1H-NMR (300 MHz, DMSO-d6) δ:0.75-0.83 (3H, m), 1.10-1.24 (6H, m), 1.57-1.68 (2H, m), 2.52 (3H, br s), 3.86 (4H, br t, J = 6.8 Hz), 3.97 (4H, br s), 5.20 (2H, s), 5.92 (1H, s), 7.35 (1H, t, J = 9.2 Hz), 7.49-7.56 (1H, m), 7.65 (1H, dd, J = 6.2, 2.6 Hz), 8.90 (2H, br s).
Obs MS [M+1]: 354.5
Obs MS [M+1]: 316.6
Obs MS [M+1]: 352.4
1H-NMR (300 MHz, CDCl3) δ: 0.73 (6H, t, J = 7.3 Hz), 1.75 (2H, m), 1.88 (2H, m), 2.62 (3H, s), 4.06 (1H, m), 4.17 (2H, s), 5.13 (2H, s), 6.25 (1H, s), 7.39 (5H, m), 9.89 (2H, br s).
Obs MS [M+1]: 324.4
Obs MS [M+1]: 324.7
Obs MS [M+1]: 340.4
1-[5-(ベンジルオキシ)-1-(2-メチルプロピル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(2-methylpropyl)-1H-pyrazol-3-yl]-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.82 (6H, d, J = 6.8 Hz), 1.98-2.09 (1H, m), 2.52 (3H, br s), 3.71 (2H, d, J = 7.2 Hz), 3.96 (2H, br s), 5.14 (2H, d, J = 12.5 Hz), 5.84 (1H, s), 7.35-7.46 (5H, m), 8.80 (2H, s).
Obs MS [M+1]: 274.5
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(2-メチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(2-methylpropyl)-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.79 (7H, d, J = 6.6 Hz), 1.96-2.09 (1H, m), 2.52 (3H, br t, J = 5.3 Hz), 3.69 (2H, d, J = 7.3 Hz), 3.97 (2H, br t, J = 5.5 Hz), 5.19 (2H, s), 5.94 (1H, s), 7.26-7.39 (2H, m), 7.40-7.47 (1H, m), 8.95 (2H, s).
Obs MS [M+1]: 310.4
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2-メチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(2-methylpropyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.79 (6H, d, J = 6.6 Hz), 1.97-2.08 (1H, m), 2.54 (3H, br t, J = 5.1 Hz), 3.69 (2H, d, J = 7.2 Hz), 3.98 (2H, br t, J = 5.0 Hz), 5.20 (2H, s), 5.91 (1H, s), 7.35 (1H, t, J = 9.4 Hz), 7.49-7.56 (1H, m), 7.65 (1H, dd, J = 6.4, 2.9 Hz), 8.83 (2H, br s).
Obs MS [M+1]: 326.4
1-[5-(ベンジルオキシ)-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(2,2-dimethylpropyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.89 (9H, s), 2.52 (3H, br t, J = 5.0 Hz), 3.68 (2H, br s), 3.96 (2H, br t, J = 4.7 Hz), 5.14 (2H, s), 5.90 (1H, s), 7.32-7.48 (5H, m), 8.99 (2H, br s).
Obs MS [M+1]: 288.3
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(2,2-dimethylpropyl)-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.86 (9H, s), 2.52 (3H, br t, J = 5.1 Hz), 3.67 (2H, s), 3.96 (2H, br t, J = 5.1 Hz), 5.17 (2H, s), 5.98 (1H, s), 7.26-7.39 (2H, m), 7.41-7.47 (1H, m), 9.07 (2H, br s).
Obs MS [M+1]: 324.4
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(2,2-dimethylpropyl)-1H-pyrazol-3-
yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.86 (9H, s), 2.52 (3H, br d, J = 5.1 Hz), 3.66 (2H, s), 3.96 (2H, br t, J = 5.3 Hz), 5.18 (2H, s), 5.98 (1H, s), 7.35 (1H, t, J = 9.2 Hz), 7.49-7.55 (1H, m), 7.66 (1H, dd, J = 6.1, 2.6 Hz), 9.06 (2H, br s).
Obs MS [M+1]: 340.4
1-[5-(ベンジルオキシ)-1-(2-エチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(2-ethylbutyl)-1H-pyrazol-3-yl]-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.81 (6H, t, J = 7.4 Hz), 1.14-1.28 (4H, m), 1.65-1.79 (1H, m), 2.53 (3H, br s), 3.79 (2H, br d, J = 6.8 Hz), 3.97 (2H, br t, J = 5.8 Hz), 5.16 (2H, s), 5.87 (1H, s), 7.36-7.47 (5H, m), 8.87 (2H, br s).
Obs MS [M+1]: 302.5
1-{5-[(3-クロロベンジル)オキシ]-1-(2-エチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(3-Chlorobenzyl)oxy]-1-(2-ethylbutyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
Obs MS [M+1]: 336.4
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(2-エチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(2-ethylbutyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
Obs MS [M+1]: 338.4
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2-エチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(2-ethylbutyl)-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
Obs MS [M+1]: 354.4
1-[5-(ベンジルオキシ)-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(3,3-dimethylbutyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.88 (9H, s), 1.53-1.58 (2H, m), 2.52 (3H, br s), 3.88-3.98 (4H, m), 5.18 (2H, s), 5.89 (1H, s), 7.37-7.48 (5H, m), 8.94 (2H, br s).
Obs MS [M+1]: 302.5
1-{5-[(3-クロロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(3-Chlorobenzyl)oxy]-1-(3,3-dimethylbutyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.90 (9H, s), 1.53-1.59 (2H, m), 2.52 (3H, br s), 3.90-3.97 (4H, m), 5.20 (2H, s), 5.90 (1H, br s), 7.40-7.47 (3H, m), 7.53 (1H, br s), 9.04 (2H, br s).
Obs MS [M+1]: 336.4
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(3,3-dimethylbutyl)-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.87 (9H, s), 1.51-1.56 (2H, m), 2.52 (3H, br s), 3.86-3.92 (2H, m), 3.96 (2H, br t, J = 5.1 Hz), 5.22 (2H, s), 5.96 (1H, br s), 7.27-7.39 (2H, m), 7.40-7.47 (1H, m), 9.01 (2H, br s).
Obs MS [M+1]: 338.4
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(3,3-dimethylbutyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 0.87 (9H, s), 1.51-1.56 (2H, m), 2.53 (3H, t, J = 4.5 Hz), 3.87-3.92 (2H, m), 3.97 (2H, br t, J = 5.7 Hz), 5.23 (2H, s), 5.95 (1H, s), 7.37 (1H, t, J = 9.3 Hz), 7.50-7.56 (1H, m), 7.66 (1H, dd, J = 6.3, 2.7 Hz), 8.95 (2H, br s).
Obs MS [M+1]: 354.3
1-[5-(ベンジルオキシ)-1-(3-メチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(3-methylbutyl)-1H-pyrazol-3-yl]-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.90 (6H, d, J = 6.4 Hz), 1.44-1.57 (1H, m), 1.59-1.65 (2H, m), 2.61 (3H, br s), 3.95 (2H, t, J = 7.3 Hz), 4.09 (2H, br s), 5.09 (2H, s), 6.11 (1H, s), 7.34-7.41 (5H, m), 9.78 (2H, br s).
Obs MS [M+1]: 288.3
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.91 (6H, d, J = 6.6 Hz), 1.45-1.68 (3H, m), 2.63 (3H, br s), 3.96 (2H, br t, J = 7.3 Hz), 4.10 (2H, br s), 5.13 (2H, s), 6.15 (1H, s), 7.02-7.10 (2H, m), 7.12-7.18 (1H, m), 9.80 (2H, s).
Obs MS [M+1]: 324.4
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.91 (6H, d, J = 6.4 Hz), 1.47-1.67 (3H, m), 2.63 (3H, br s), 3.95 (2H, br t, J = 7.2 Hz), 4.10 (2H, br s), 5.11 (2H, s), 6.11 (1H, d, J = 7.0 Hz), 7.03-7.09 (1H, m), 7.28-7.35 (1H, m), 7.42 (1H, dd, J = 6.2, 2.4 Hz), 9.77 (2H, d, J = 0.9 Hz).
Obs MS [M+1]: 340.4
1-[5-(ベンジルオキシ)-1-(4,4,4-トリフルオロブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(4,4,4-trifluorobutyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 2.04 (4H, m), 2.62 (3H, s), 4.01 (2H, m), 4.09 (2H, br s), 5.10 (2H, s), 6.15 (1H, s), 7.39 (5H, m), 9.81 (2H, br s).
Obs MS [M+1]: 328.3
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4,4,4-トリフルオロブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(4,4,4-trifluorobutyl)-1H-pyrazol-3-yl}-
N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 2.04 (4H, m), 2.62 (3H, s), 4.01 (2H, m), 4.09 (2H, br s), 5.13 (2H, s), 6.18 (1H, br s), 7.03-7.09 (2H, m), 7.14 (1H, m), 9.86 (2H, br s)
Obs MS [M+1]: 364.2
1-[5-(ベンジルオキシ)-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(3-methoxy-3-methylbutyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.08 (6H, s), 1.76-1.83 (2H, m), 2.52 (3H, br t, J = 5.5 Hz), 3.05 (3H, s), 3.88-3.97 (4H, m), 5.16 (2H, s), 5.87 (1H, s), 7.35-7.47 (5H, m), 8.93 (2H, br s).
Obs MS [M+1]: 318.2
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(3-methoxy-3-methylbutyl)-1H-pyrazol-3-
yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.07 (6H, s), 1.75-1.83 (2H, m), 2.53 (3H, br t, J = 4.4 Hz), 3.04 (3H, s), 3.87-3.99 (4H, m), 5.21 (2H, s), 5.93 (1H, s), 7.29-7.38 (2H, m), 7.44 (1H, dd, J = 8.7, 5.6 Hz), 8.94 (2H, s).
Obs MS [M+1]: 354.4
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(3-methoxy-3-methylbutyl)-1H-
pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, DMSO-d6) δ: 1.08 (6H, s), 1.75-1.82 (2H, m), 2.53 (3H, br t, J = 5.1 Hz), 3.04 (3H, s), 3.86-3.99 (4H, m), 5.21 (2H, s), 5.93 (1H, s), 7.35 (1H, t, J = 9.3 Hz), 7.49-7.56 (1H, m), 7.66 (1H, dd, J = 6.3, 2.7 Hz), 8.94 (2H, s).
Obs MS [M+1]: 370.3
参考例1で得られた化合物および対応するベンジルクロライドまたはベンジルブロミドを用いて上記の実施例20~40に記載の方法によって表12に示すとおり実施例276~282の化合物を製造した。工程(i)は実施例20~40の一般製造法に記載の方法Cによって行った。
1-{1-(シクロペンチルメチル)-5-[(2,3,4-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,3,4-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-
N-methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 1.19 (2H, m), 1.60-1.75 (6H, m), 2.41 (1H, m), 2.69 (3H, s), 3.95 (2H, d, J = 8.0 Hz), 4.24 (2H, s), 5.22 (2H, s), 6.60 (1H, s), 7.05 (1H, m), 7.25 (1H, m), 10.14 (2H, br s).
1-{1-(シクロペンチルメチル)-5-[(2,3,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,3,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-
N-methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 1.20 (2H, m), 1.45-1.70 (6H, m), 2.36 (1H, m), 2.61 (3H, s), 3.86 (2H, d, J = 8.0 Hz), 4.11 (2H, s), 5.15 (2H, s), 6.22 (1H, s), 6.90-7.00 (2H, m), 9.82 (2H, br s).
1-{1-(シクロペンチルメチル)-5-[(2,3,6-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,3,6-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-
N-methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 1.16 (2H, m), 1.44-1.65 (6H, m), 2.31 (1H, m), 2.60 (3H, s), 3.78 (2H, d, J = 8.0 Hz), 4.09 (2H, s), 5.16 (2H, s), 6.19 (1H, s), 6.89 (1H, m), 7.18 (1H, m), 9.78 (2H, br s).
1-{1-(シクロペンチルメチル)-5-[(2,6-ジフルオロ-3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,6-difluoro-3-methylbenzyl)oxy]-1H-pyrazol-
3-yl}-N-methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 1.16 (2H, m), 1.40-1.65 (6H, m), 2.23 (3H, s), 2.31 (1H, m), 2.61 (3H, s), 3.78 (2H, d, J = 8.0 Hz), 4.10 (2H, s), 5.14 (2H, s), 6.20 (1H, s), 6.79-6.85 (1H, m), 7.13-7.22 (1H, m), 9.82 (2H, br s).
1-{1-(シクロペンチルメチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-
N-methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 1.19 (2H, m), 1.50-1.70 (6H, m), 2.38 (1H, m), 2.63 (3H, s), 3.88 (2H, d, J = 8.0 Hz), 4.15 (2H, s), 5.11 (2H, s), 6.35 (1H, s), 6.94-7.02 (1H, m), 7.24-7.32 (1H, m), 9.97 (2H, br s).
1-{1-(シクロペンチルメチル)-5-[(2,4,6-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,4,6-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-
N-methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 1.16 (2H, m), 1.45-1.70 (6H, m), 2.30 (1H, m), 2.60 (3H, s), 3.77 (2H, d, J = 8.0 Hz), 4.08 (2H, s), 5.09 (2H, s), 6.15 (1H, s), 6.71 (2H, dd, J = 8.0, 8.0 Hz), 9.76 (2H, br s).
1-{5-[(2-クロロ-4,5-ジフルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2-Chloro-4,5-difluorobenzyl)oxy]-1-(cyclopentylmethyl)-1H-pyrazol-
3-yl}-N-methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 1.20 (2H, m), 1.45-1.70 (6H, m), 2.32 (1H, m), 2.63 (3H, s), 3.88 (2H, d, J = 8.0 Hz), 4.12 (2H, s), 5.12 (2H, s), 6.24 (1H, s), 7.24-7.38 (2H, m), 9.89 (2H, br s).
N-メチル-1-{1-(3-メチルブチル)-5-[2,4,5-トリフルオロベンジル]オキシ]-1H-ピラゾール-3-イル}メタンアミン 塩酸塩
N-Methyl-1-{1-(3-methylbutyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}methanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 0.88 (6H, d, J = 6.0 Hz), 1.40-1.70 (5H, m), 2.59 (3H, s), 3.91 (2H, d, J = 6.0 Hz), 4.06 (2H, s), 5.06 (2H, s), 6.11 (1H, s), 6.93-7.01 (1H, m), 7.22-7.35 (1H, m).
1-{1-(3,3-ジメチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(3,3-Dimethylbutyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-
N-methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 0.90 (9H, s), 1.60-1.65 (2H, m), 2.59 (3H, s), 3.89-3.94 (2H, m), 4.07 (2H, s), 5.07 (2H, s), 6.13 (1H, s), 6.93-7.02 (1H, m), 7.25-7.35 (1H, m), 9.77 (2H, br s).
1-{1-(4-メトキシベンジル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(4-Methoxybenzyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 2.58 (3H, s), 3.76 (3H, s), 4.06 (2H, s), 5.03 (2H, s), 5.03 (2H, s), 6.13 (1H, s), 6.80 (2H, d, J = 8.0 Hz), 6.90-6.96 (1H, m), 7.08 (2H, d, J = 8.0 Hz), 7.23-7.29 (1H, m), 9.79 (2H, br s).
N-メチル-1-{1-(4-メチルベンジル)-5-[2,4,5-トリフルオロベンジル]オキシ]-1H-ピラゾール-3-イル}メタンアミン 塩酸塩
N-Methyl-1-{1-(4-methylbenzyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-
3-yl}methanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 2.29 (3H, s), 2.58 (3H, s), 4.06 (2H, s), 5.03 (2H, s), 5.05 (2H, s), 6.14 (1H, s), 6.88-6.96 (1H, m), 7.01 (2H, d, J = 8.0 Hz), 7.08 (2H, d, J = 8.0 Hz), 7.21-7.26 (1H, m), 9.80 (2H, br s).
2-({3-[(メチルアミノ)メチル]-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-1-イル}メチル)ベンゾニトリル 塩酸塩
2-({3-[(Methylamino)methyl]-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-1-
yl}methyl)benzonitrile hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 2.61 (3H, s), 4.07 (2H, s), 5.07 (2H, s), 5.32 (2H, s), 6.19 (1H, s), 6.88-6.96 (1H, m), 7.06-7.16 (2H, m), 7.38 (1H, dd, J = 8.0, 8.0 Hz), 7.52 (1H, dd, J = 8.0, 8.0 Hz), 7.64 (1H, d, J = 8.0 Hz), 9.85 (2H, br s).
1-[5-(ベンジルオキシ)-1-(1-シクロペンチルエチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(1-cyclopentylethyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
参考例6で得られた化合物(Ir)(40mg,0.12mmol)と炭酸セシウム(81mg,0.25mmol)のアセトニトリル(0.6mL)溶液に室温で対応するベンジルクロライド(21μL,0.19mmol)を加え、反応混合物を室温で3時間攪拌した。塩をろ別後、ろ液を濃縮し、得られた濃縮残渣をPTLC(n-ヘキサン:酢酸エチル=70:30)で精製して、化合物(IIr)(33mg,64%)を得た。
化合物(IIr)をクロロホルム(0.6mL)に溶解させ、4mol/L 塩化水素 1,4-ジオキサン溶液(0.6mL)を室温で加え、反応混合物を室温で30分間攪拌後、溶媒を減圧留去した。得られた残渣にジエチルエーテルを加えてデカンテーションし、得られた固体を減圧乾燥することで標記化合物(IIIr)(26mg,95%)を淡褐色粉末として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 0.90-1.03 (1H, m), 1.14-1.27 (2H, m), 1.31 (3H, d, J = 6.6 Hz), 1.34-1.63 (4H, m), 1.67-1.80 (1H, m), 2.16-2.30 (1H, m), 2.50 (3H, br s), 3.95 (2H, br , J = 5.6 Hz), 3.99-4.08 (1H, m), 5.14 (2H, s), 5.86 (1H, s), 7.32-7.46 (5H, m), 8.92 (2H, br s).
参考例6で得られたケトン化合物および対応するベンジルクロライドを用いて実施例288と同様の方法によって実施例289~291の化合物を製造した。
1-{5-[(3-クロロベンジル)オキシ]-1-(1-シクロペンチルエチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(3-Chlorobenzyl)oxy]-1-(1-cyclopentylethyl)-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1-{1-(1-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(1-Cyclopentylethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(1-シクロペンチルエチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(1-cyclopentylethyl)-1H-pyrazol-3-
yl}-N-methylmethanamine hydrochloride
参考例7で得られた化合物および対応するベンジルクロライドまたはベンジルブロミドから実施例288と同様の方法によって実施例292~295の化合物を製造した。
1-[5-(ベンジルオキシ)-1-(1-シクロヘキシルエチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(1-cyclohexylethyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
Obs MS [M+1]: 328.3
1-{1-(1-シクロヘキシルエチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(1-Cyclohexylethyl)-5-[(2-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
Obs MS [M+1]: 346.5
1-{1-(1-シクロヘキシルエチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(1-Cyclohexylethyl)-5-[(3-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
Obs MS [M+1]: 346.2
1-{1-(1-シクロヘキシルエチル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(1-Cyclohexylethyl)-5-[(4-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
Obs MS [M+1]: 346.2
参考例7で得られた化合物および対応するベンジルブロミドまたはベンジルクロライドを用いて上記の実施例20~40に記載の方法と同様にして表13に示すとおり実施例296~308の化合物を製造した。
実施例288と同様の方法によって実施例309および310の化合物を製造した。
1-[5-(ベンジルオキシ)-1-(1-シクロヘキシルプロピル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(1-cyclohexylpropyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
Obs MS [M+1]: 342.3
1-[1-(1-シクロヘキシルプロピル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-{1-(1-Cyclohexylpropyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
Obs MS [M+1]: 378.5
参考例31~35で得られた化合物および対応するベンジルクロライドあるいはベンジルブロマイドを用いて実施例20~40に記載の方法と同様の方法によって表14に示すとおり実施例311~327の化合物を製造した。工程(i)のベンジル化は、実施例20~40の一般製造法に記載の方法Cと同様に行った。
2-{5-(ベンジルオキシ)-3-[(メチルアミノ)メチル]-1H-ピラゾール-1-イル}-2-シクロヘキシルエタノール 塩酸塩
2-{5-(Benzyloxy)-3-[(methylamino)methyl]-1H-pyrazol-1-yl}-2-cyclohexyl-ethanol hydrochloride
参考例42で得られた化合物(Is)(238mg,1.0mmol)とトリエチルアミン(147μL,1.1mmol)のエタノール(8mL)溶液に室温で参考例1の工程(i)で得られた化合物(IIa)(262mg,1.0mmol)を加え、反応混合物を80℃で16時間攪拌後、さらにトリエチルアミン(147μL,1.1mmol)を加え、反応混合物を80℃で3.5時間攪拌した。室温に冷却後、溶液を5%硫酸水素カリウム水溶液(20mL)に注ぎ、酢酸エチルで抽出した。有機層を乾燥後、溶媒を減圧留去し、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=50:50)で精製して、化合物(IIs)(189mg,47%)を褐色油状物として得た。
化合物(IIs)(50mg,0.13mmol)と炭酸セシウム(82mg,0.25mmol)のアセトニトリル(0.65mL)溶液に室温でベンジルクロライド(22μL,0.19mmol)を加え、反応混合物を室温で2.5時間攪拌した。酢酸エチルで希釈し、塩をろ別後、ろ液を濃縮し、得られた濃縮残渣をPTLC(n-ヘキサン:酢酸エチル=7:3)で精製して、化合物(IIIs)(26mg,42%)を得た。
化合物(IIIs)(26mg,0.054mmol)のテトラヒドロフラン(0.3mL)溶液に0℃で水素化リチウムアルミニウム(7mg,0.18mmol)を加え、反応混合物を10分間攪拌後、さらに0℃で水素化リチウムアルミニウム(12mg,0.32mmol)を加え、反応混合物を10分間攪拌後、0℃で水素化リチウムアルミニウム(10mg,0.31mmol)を加え、反応混合物を40分間攪拌後、飽和硫酸ナトリウム水溶液を加えた。ろ過し、ろ液を濃縮後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(酢酸エチル)で精製して、化合物(IVs)(29mg,定量的)を得た。
化合物(IVs)(29mg,mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(0.5mL)を加え、反応溶液を室温で1時間攪拌した。溶媒を減圧留去することで標記化合物(Vs)(8.3mg,40%)を褐色油状物として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 0.71-1.83 (11H, m), 2.53 (3H, br s), 3.76 (2H, m), 3.92-4.01 (3H, m), 4.58 (1H, br s), 5.14 (2H, s), 5.79 (1H, s), 7.35-7.45 (5H, m), 8,73 (2H, br s).
2-シクロヘキシル-2-{5-(2,5-ジフルオロベンジル)オキシ]-3-[(メチルアミノ)メチル]-1H-ピラゾール-1-イル}-2-シクロヘキシルエタノール 塩酸塩
2-Cyclohexyl-2-{5-[(2,5-difluorobenzyl)oxy]-3-[(methylamino)methyl]-1H-
pyrazol-1-yl}ethanol hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.76-1.33 (6H, m), 1.55-1.99 (5H, m), 2.65 (3H, s), 3.82 (1H, m), 3.95-4.17 (4H, m), 5.12 (2H, s), 6.05 (1H, s), 7.05 (2H, m), 7.14 (1H, m), 9.57 (1H, br s), 9.81 (1H, br s).
1-[5-(ベンジルオキシ)-1-(1-シクロヘキシル-2-フルオロエチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(1-cyclohexyl-2-fluoroethyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
実施例328の工程(iii)で製造した化合物(IVs)(40mg,0.090mmol)のテトラヒドロフラン(1mL)溶液に0℃でパーフルオロブタンスルホニルフルオライド(32μL,0.18mmol)を加え、引き続いてDBU(27μL,0.18mmol)を0℃加え、反応混合物を0℃で80分間攪拌し、ゆっくり室温に昇温させながら3時間攪拌した。飽和重曹水を加えて酢酸エチルで抽出し、有機層を5%硫酸水素カリウムで洗浄後、溶媒を減圧留去した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=4:1)で精製して、化合物(It)(31mg,59%)を油状物として得た。
化合物(It)(31mg,0.070mmol)のクロロホルム(0.4mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(0.5mL)を加え、反応溶液を室温で1時間攪拌した。溶媒を減圧留去して得られた濃縮残渣にジエチルエーテルを加えてデカンテーションすることで標記化合物(IIt)(24mg,90%)を白色粉末として得た。
1H-NMR (300 MHz, CDCl3) δ: 0.89 (1H, m), 0.96-1.33 (5H, m), 1.57-1.96 (5H, m), 2.59 (3H, s), 4.10 (2H, s), 4.27 (1H, m), 4.71 (1H, ddd, J = 45.8, 9.7, 4.0 Hz), 4.82 (1H, ddd, J = 48.2, 8.9, 8.9 Hz), 5.09 (2H, s), 6.10 (1H, s), 7.39 (5H, m), 9.77 (2H, br s).
参考例27~30で得られた化合物および対応するベンジルブロミドまたはベンジルクロライドを用いて上記の実施例20~40に記載の方法によって表15に示すとおり実施例331~339の化合物を製造した。
1-[5-(ベンジルオキシ)-1-(3,4-ジヒドロ-2H-クロメン-2-イルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-(3,4-dihydro-2H-chromen-2-ylmethyl)-1H-pyrazol-3-yl]-N-methylmethanamine hydrochloride
クロマン-2-イルメチルアルコール(Iu)を用いて、参考例42記載の方法と同様にして化合物(IIu)を得た。
実施例198の工程(ii)~(iv)に記載の方法と同様にして目的化合物(Vu)を得た。
1H-NMR (400 MHz, DMSO-d6) δ: 1.62-1.73 (1H, m), 1.94-2.02 (1H, m), 2.54 (3H, br t, J = 5.2 Hz), 2.66-2.83 (2H, m), 3.99 (2H, br t, J = 5.6 Hz), 4.13 (1H, dd, J = 14.1, 5.1 Hz), 4.25 (1H, dd, J = 14.3, 6.7 Hz), 4.32-4.39 (1H, m), 5.20 (2H, s), 5.91 (1H, s), 6.65 (1H, br d, J = 8.0 Hz), 6.81 (1H, br t, J = 7.0 Hz), 7.05 (2H, br t, J = 7.6 Hz), 7.33-7.48 (5H, m), 8.96 (2H, br s).
1-{5-[(3-クロロベンジル)オキシ]-1-(3,4-ジヒドロ-2H-クロメン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(3-Chlorobenzyl)oxy]-1-(3,4-dihydro-2H-chromen-2-ylmethyl)-1H-
pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (400 MHz, DMSO-d6) δ: 1.64-1.74 (1H, m), 1.96-2.03 (1H, m), 2.54 (3H, br t, J = 4.3 Hz), 2.69-2.84 (2H, m), 3.98 (2H, br t, J = 5.2 Hz), 4.16 (1H, dd, J = 14.0, 5.0 Hz), 4.26 (1H, dd, J = 14.4, 6.8 Hz), 4.33-4.40 (1H, m), 5.21 (2H, s), 5.90-5.96 (1H, m), 6.65 (1H, br d, J = 8.0 Hz), 6.81 (1H, br t, J = 7.4 Hz), 7.01-7.08 (2H, m), 7.41-7.47 (3H, m), 7.54 (1H, s), 9.01 (2H, br s).
N-({1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メチル)シクロプロパンアミン
N-({1-(Cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-methyl)cyclopropanamine
1H-NMR (300 MHz, CDCl3) δ: 0.35-0.46 (4H, m), 0.87-1.04 (2H, m), 1.09-1.30 (3H, m), 1.54-1.94 (6H, m), 2.15-2.25 (1H, m), 3.73-3.79 (4H, m), 5.09 (2H, s), 5.53 (1H, s), 6.97-7.18 (3H, m).
実施例343
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N,N-ジメチルメタンアミン
1-{1-(Cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N,N-
dimethylmethanamine
N-({1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メチル)エタンアミン
N-({1-(Cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-methyl)ethanamine
N-({1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メチル)プロパン-1-アミン
N-({1-(Cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-methyl)propan-1-amine
N-({1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メチル)プロパン-2-アミン
N-({1-(Cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-methyl)propan-2-amine
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-methanamine hydrochloride
実施例1の工程(i)~(iii)に記載の方法と同様にして得られた化合物(Iw)(190mg,0.59mmol)とトリエチルアミン(164μL,1.2mmol)のジクロロメタン(3mL)溶液に0℃でメタンスルホニルクロライド(68μL,0.88mmol)を加え、反応混合物を0℃で25分間攪拌後、さらにメタンスルホニルクロライド(9μL,0.12mmol)を加えて0℃で5分間攪拌した。反応混合物に飽和重曹水を加え、酢酸エチルで抽出した。全有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去することで得た濃縮残渣を、そのまま精製することなくDMF(1.2mL)に溶解させて、アジ化ナトリウム(77mg,1.2mmol)を室温で加えて、反応混合物を室温で1.5時間攪拌した。反応溶液に水(5mL)を加えてトルエンで抽出し、全有機層を水洗後、溶媒を減圧留去することで化合物(IIw)の粗生成物(186mg)を得た。化合物(IIw)をテトラヒドロフラン(3mL)に溶解させて、室温でトリフェニルホスフィン(186mg,0.71mmol)および水(0.6mL)を加え、反応混合物を室温で1夜間攪拌した。溶媒を減圧留去後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(クロロホルム:メタノール=99:1~10:1)で精製して、化合物(IIIw)のフリー塩基(61mg)を得た。これをクロロホルム(0.4mL)に溶解させて、4mol/L 塩化水素 1,4-ジオキサン溶液(0.4mL)を加えた。溶媒を減圧留去後、濃縮残渣にジエチルエーテルを加えて生じた沈殿をろ取し、ろ上物をジエチルエーテル(10mL)で洗浄後、減圧乾燥することで標記化合物(IIIw)(70mg,33%)を淡褐色固体として得た。
1H-NMR (300 MHz, CDCl3) δ: 1.21 (2H, m), 1.45-1.77 (6H, m), 2.50 (1H, m), 4.10 (2H, d, J = 8.1 Hz), 4.60 (2H, br s), 5.40 (2H, s), 6.97 (1H, s), 7.07 (2H, m), 7.26 (1H, m), 9.16 (3H, br s).
Obs MS [M+1]: 322.4
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}メタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-methanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.88 (6H, d, J = 6.6 Hz), 1.50 (1H, m), 1.67 (2H, m), 4.07 (2H, m), 4.43 (2H, s), 5.27 (2H, s), 6.59 (1H, s), 7.06 (2H, m), 7.26 (1H, m), 8.98 (3H, s).
Obs MS [M+1]: 310.4
1-{1-(シクロヘキシルメチル)-5-[ジフルオロ(フェニル)メトキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[difluoro(phenyl)methoxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
参考例4で得られた化合物(Ix)(100mg,0.31mmol)と炭酸セシウム(151mg,0.46mmol)のアセトニトリル(2mL)溶液に、文献記載の方法(Synthetic Communications. 1999, 855-862.)により製造した化合物(IIx)(96mg,0.46mmol)のアセトニトリル(1mL)溶液を加え、反応溶液を50℃で1日間攪拌した。室温に冷却後、酢酸エチルで希釈し、塩をろ別後、ろ液を濃縮して得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=94:6~73:27)で精製して、化合物(IIIx)(49mg,36%)を黄色油状物として得た。
化合物(IIIx)(47mg,0.11mmol)のクロロホルム(1mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1mL)を加え、反応溶液を30分間攪拌した。溶液を減圧濃縮することで標記化合物(IVx)(43mg,定量的)を黄色油状物として得た。
1H-NMR (300 MHz, CD3OD) δ: 0.90-1.07 (2H, m), 1.13-1.27 (3H, m), 1.51-1.77 (5H, m), 1.81-1.96 (1H, m), 2.72 (3H, s), 3.88 (2H, d, J = 7.2 Hz), 4.13 (2H, s), 6.19 (1H, t, J = 1.8 Hz), 7.51-7.66 (3H, m), 7.68-7.76 (2H, m).
Obs MS [M+1]: 350.4
1-{5-[1-(3-クロロフェニル)エトキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[1-(3-Chlorophenyl)ethoxy]-1-(cyclohexylmethyl)-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
参考例4で製造した化合物を用いて、実施例20~40の一般製造方法を用いて標記化合物(55mg,45%)を淡黄色油状物として得た。ベンジル化は、実施例20~40の一般製造方法に記載の方法Bを用いた。
1H-NMR (300 MHz, CD3OD) δ: 0.93-1.10 (2H, m), 1.15-1.31 (3H, m), 1.49-1.93 (6H, m), 1.66 (3H, d, J = 6.4 Hz), 2.63 (3H, s), 3.84 (2H, dd, J = 7.3, 3.1 Hz), 3.97 (2H, s), 5.32 (1H, q, J = 6.5 Hz), 5.58 (1H, s), 7.26-7.39 (3H, m), 7.40-7.43 (1H, m).
Obs MS [M+1]: 362.5
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-4-フルオロ-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-4-fluoro-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
参考例4で製造した化合物(Iy)(500mg,1.6mmol)と炭酸セシウム(756mg,2.3mmol)のアセトニトリル(3mL)溶液に室温で2,5-ジフルオロベンジルブロミド(377mg,2.3mmol)のアセトニトリル(2mL)溶液を加え、反応混合物を室温で15時間攪拌した。溶液に酢酸エチルを加えて塩をろ別後、ろ液を濃縮して得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン~n-ヘキサン:酢酸エチル=80:20)で精製して、化合物(IIy)(518mg,74%)を淡黄色油状物として得た。
化合物(IIy)(40mg,0.089mmol)のジメチルホルムアミド(5mL)溶液に氷冷しながらSelectfluor(登録商標)(38mg,0.11mmol)の水(0.5mL)溶液を加え、反応混合物を氷冷下1時間攪拌後、ゆっくり室温に昇温させながら1夜間攪拌した。水(20mL)を加えて酢酸エチルで抽出し、全有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=96:4~75:25)で精製して、化合物(IIIy)(19mg,44%)を無色油状物として得た。
化合物(IIIy)(19mg,0.040mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1mL)を加え、反応溶液を30分間攪拌した。溶液を減圧濃縮することで標記化合物(17mg,定量的)を白色固体として得た。
1H-NMR (300 MHz, CD3OD) δ: 0.82-1.00 (2H, m), 1.07-1.25 (3H, m), 1.44-1.55 (2H, m), 1.59-1.82 (4H, m), 2.72 (3H, s), 3.71 (2H, d, J = 7.3 Hz), 4.15 (2H, s), 5.36 (2H, s), 7.13-7.30 (3H, m).
Obs MS [M+1]: 368.4
1-{4-クロロ-1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{4-Chloro-1-(cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
実施例351の工程(i)で得られた化合物(IIy)(40mg,0.089mmol)のDMF(0.5mL)溶液に氷冷下、N-クロロコハク酸イミド(14mg,0.11mmol)を加えて、反応混合物を氷冷下1時間攪拌後、ゆっくり室温に昇温させながら1夜間攪拌した。水(20mL)を加えて酢酸エチルで抽出し、全有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン~n-ヘキサン:酢酸エチル=83:17)で精製して、化合物(IIz)(33mg,76%)を無色油状物として得た。
化合物(IIz)(33mg,0.067mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1mL)を加え、反応溶液を30分間攪拌した。溶液を減圧濃縮することで標記化合物(IIIz)(28mg,定量的)を無色油状物として得た。
1H-NMR (300 MHz, CD3OD) δ: 0.73-0.90 (2H, m), 0.99-1.16 (3H, m), 1.36-1.47 (2H, m), 1.49-1.71 (4H, m), 2.66 (3H, s), 3.62 (2H, d, J = 7.3 Hz), 4.05 (2H, s), 5.31 (2H, s), 7.06-7.20 (3H, m).
Obs MS [M+1]: 384.3
1-{4-ブロモ-1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{4-Bromo-1-(cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-
yl}-N-methylmethanamine hydrochloride
化合物(IIy)(400mg,0.89mmol)のDMF(4mL)溶液に氷冷下、N-ブロモコハク酸イミド(174mg,0.98mmol)を加えて、反応混合物をゆっくり室温に昇温させながら1夜間攪拌した。水(40mL)を加えて酢酸エチルで抽出し、全有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン~n-ヘキサン:酢酸エチル=83:17)で精製して、化合物(IIaa)(333mg,71%)を無色油状物として得た。
化合物(IIaa)(25mg,0.047mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1mL)を加え、反応溶液を30分間攪拌した。溶液を減圧濃縮することで標記化合物(IIIaa)(23mg,定量的)を無色油状物として得た。
1H-NMR (300 MHz, CD3OD) δ: 0.82-1.03 (2H, m), 1.09-1.26 (3H, m), 1.45-1.57 (2H, m), 1.59-1.82 (4H, m), 2.75 (3H, s), 3.73 (2H, d, J = 7.2 Hz), 4.13 (2H, s), 5.39 (2H, d, J = 1.1 Hz), 7.14-7.29 (3H, m).
Obs MS [M+1]: 428.3
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-4-メチル-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclohexylmethyl)-5-[(2,5-difluorobenzyl)oxy]-4-methyl-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
実施例353の工程(i)で製造した化合物(IIaa)(50mg,0.095mmol)およびビス(トリ-tert-ブチルホスフィン)パラジウム(0)(9.7mg,0.019mmol)のテトラヒドロフラン(1mL)溶液に塩化メチル亜鉛(2.0mol/Lテトラヒドロフラン溶液,62μL,0.12mmol)を室温で加え、反応混合物を室温で30分間攪拌した。水および飽和塩化アンモニウム水溶液(10mL)を加え、酢酸エチルで抽出した。全有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去することで得られた濃縮残渣を逆相液体クロマトグラフィーで精製して、化合物(IIbb)(23mg,51%)を無色油状物として得た。逆相クロマトグラフィーによる精製は実施例20~40に記載の条件を用いて実施した。
化合物(IIbb)(23mg,0.049mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1mL)を加え、反応溶液を30分間攪拌した。溶液を減圧濃縮することで標記化合物(IIIbb)(19mg,97%)を白色固体として得た。
1H-NMR (300 MHz, CD3OD) δ: 0.82-1.01 (2H, m), 1.09-1.28 (3H, m), 1.46-1.57 (2H, m), 1.60-1.83 (4H, m), 2.02 (3H, s), 2.71 (3H, s), 3.69 (2H, d, J = 7.3 Hz), 4.08 (2H, s), 5.17 (2H, d, J = 1.1 Hz), 7.13-7.27 (3H, m).
Obs MS [M+1]: 364.5
1-[1-ベンジル-5-(ベンジルスルファニル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[1-Benzyl-5-(benzylsulfanyl)-1H-pyrazol-3-yl]-N-methylmethanamine hydrochloride
参考例36で得られた化合物(VIIIb)(100mg,0.32mmol)とローソン試薬(2,4-ビス(4-メトキシフェニル)-1,3-ジチア-2,4-ジホスフェタン 2,4-ジスルフィド)(127mg,0.32mmol)のトルエン(2mL)溶液を100℃で30分間攪拌した。続いてベンジルブロミド(56μL,0.47mmol)と炭酸カリウム(131mg,0.95mmol)を加えて、反応混合物を100℃で1時間攪拌した。室温に冷却後、塩をろ別し、ろ液を濃縮後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=4:1)で精製して、化合物(IIIcc)(40mg,30%)を得た。
化合物(IIIcc)(20mg,0.047mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1mL)を加え、反応混合物を30分間攪拌した。溶媒を減圧留去し、濃縮残渣にジエチルエーテルを加えてデカンテーションし、得られた固形物を減圧乾燥することで標記化合物(IVcc)(19mg,定量的)を白色固体として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 9.13 (brs, 2H), 7.37-7.23 (m, 6H), 7.14 (brd, 1H, J = 6.4 Hz), 7.06 (brd, 2H, J = 6.8 Hz), 6.59 (s, 1H), 5.24 (s, 2H), 4.06 (s, 2H), 4.02 (s, 2H), 2.53-2.47 (s, 3H).
1-[5-(ベンジルスルファニル)-1-(3-フェニルプロピル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzylsulfanyl)-1-(3-phenylpropyl)-1H-pyrazol-3-yl]-N-methyl-methanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ 9.87 (brs, 2H), 7.32-7.16 (m, 6H), 7.15-7.08 (m, 4H), 6.78 (s, 1H), 4.14 (s, 2H), 3.91 (s, 2H), 3.85 (t, 2H, J = 7.2 Hz), 2.58 (s, 3H), 2.49 (t, 2H, J = 7.2 Hz), 1.94 (tt, 2H, J = 7.2, 7.2Hz).
N-ベンジル-1-(シクロヘキシルメチル)-3-[(メチルアミノ)メチル]-1H-ピラゾール-5-アミン 二塩酸塩
N-Benzyl-1-(cyclohexylmethyl)-3-[(methylamino)methyl]-1H-pyrazol-5-amine dihydrochloride
カリウム tert-ブトキシド(9.90g,88mmol)のTHF(170mL)懸濁溶液に0℃でアセトニトリル(3.62g,88 mmol)を加えて反応溶液をゆっくり室温に昇温させながら30分間攪拌した。再び0℃に冷却して化合物(Idd)(13.8g,68mmol)のテトラヒドロフラン(50mL)を加え、反応混合物をゆっくり室温に昇温させながら2時間攪拌した。さらにカリウム tert-ブトキシド(2.28g,26mmol)を加えて反応混合物を4時間攪拌後、50℃で30分攪拌した。溶液を0℃に冷却後、5%硫酸水素カリウム水溶液(300mL)を加えて酢酸エチルで抽出した。無水硫酸ナトリウムで乾燥後、溶媒を減圧留去し、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン/酢酸エチル)で精製して、化合物(IIdd)(10.2g,72%)を黄色油状物として得た。
シクロヘキシルメチルヒドラジン 2塩酸塩(948mg,4.7mmol)および炭酸カリウム(1.43g,19.4mmol)のエタノール(10mL)溶液に室温で化合物(IIdd)(1.00g,4,7mmol)のエタノール(15mL)溶液を室温で加え、反応混合物を室温で1時間攪拌後、50℃で2時間攪拌した。室温に冷却後、混合物に水を加えて酢酸エチルで抽出し、有機層を飽和重曹水および飽和食塩水で洗浄後、無水硫酸ナトリウムで乾燥した。溶媒を減圧留去して、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン/酢酸エチル)で精製して、化合物(IIIdd)(923mg,61%)を淡黄色固体として得た。
化合物(IIIdd)(88mg,0.27mmol)およびピリジン(65mg,0.82mmol)のジクロロメタン(3mL)溶液に室温でベンゾイルクロライド(46mg,0.33mmol)を加えて、反応混合物を室温で1夜間攪拌した。反応溶液を酢酸エチルで希釈し、5%硫酸水素カリウム水溶液、飽和重曹水および飽和食塩水で洗浄後、無水硫酸ナトリウムで乾燥した。溶媒を減圧留去後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン/酢酸エチル)で精製して、化合物(IVdd)(105mg,90%)を黄色油状物として得た。
化合物(IVdd)(63mg,0.15mmol)のTHF(3mL)溶液に0℃でボラン・ジメチルスルフィド錯体(0.59mmol)を加え、反応溶液を70℃で3.5時間攪拌した。反応溶液を0℃に冷却してメタノールを加え、30分間加熱還流した。室温に冷却後、溶媒を減圧留去し、得られた濃縮残渣に5%硫酸水素カリウム水溶液を加えて、酢酸エチルで抽出し、全有機層を飽和重曹水および飽和食塩水の順に洗浄して無水硫酸ナトリウムで乾燥した。溶媒を減圧留去後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン/酢酸エチル)で精製して、化合物(Vdd)(31mg,51%)を無色油状物として得た。
化合物(Vdd)(31mg,0.075mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1mL)を加え、反応溶液を室温で25分間攪拌した。溶媒を減圧留去し、得られた濃縮残渣に少量のジエチルエーテルを加えてデカンテーションすることで標記化合物(VIdd)(30mg,定量的)を白色粉末として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 0.90-1.25 (5H, m), 1.50-1.90 (6H, m), 2.50 (3H,br s), 3.78 (2H, d, J= 7.3 Hz), 3.82-3.90 (2H, m), 4.20 (2H, s), 5.39 (1H, s), 5.80 (2H, br s), 7.20-7.36 (5H, m), 8.87 (2H, br s).
Obs MS [M+1]: 313.8
N-ベンジル-1-(シクロヘキシルメチル)-N-メチル-3-[(メチルアミノ)メチル]-1H-ピラゾール-5-アミン 二塩酸塩
N-Benzyl-1-(cyclohexylmethyl)-N-methyl-3-[(methylamino)methyl]-1H-pyrazol-5-amine dihydrochloride
実施例357の工程(iv)で製造した化合物(Vdd)(47mg,0.11mmol)のDMF(1mL)溶液に室温で水素化ナトリウム(60% 油状懸濁,6.8mg,0.17mmol)とヨウ化メチル(24mg,0.17mmol)を室温で加え、反応溶液を室温で1夜間攪拌した。5%硫酸水素カリウム水溶液を加えて酢酸エチルで抽出し、全有機層を水、飽和食塩水で洗浄後、無水硫酸ナトリウムで乾燥した。溶媒を減圧留去後、濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン/酢酸エチル)で精製して、化合物(Iee)(41mg,86%)を無色油状物として得た。
化合物(Iee)(41mg,0.097mmol)のクロロホルム(0.5mL)溶液に室温で4mol/L 塩化水素 1,4-ジオキサン溶液(1mL)を加え、反応溶液を室温で1時間攪拌した。溶媒を減圧留去することで標記化合物(IIee)(44mg,定量的)を無色油状物として得た。
1H-NMR (300 MHz, CDCl3) δ: 0.90-1.05 (2H, m), 1.10-1.30 (3H, m), 1.43-1.55 (2H, m), 1.60-1.80 (3H, m), 1.95-2.10 (1H, m), 2.67 (3H, br s), 2.73 (3H, s), 3.90 (2H, d, J= 6.0 Hz), 4.13 (2H, s), 4.24 (2H, br s), 6.57 (1H, s), 7.23-7.40 (5H, m), 10.12 (2H, br s).
Obs MS [M+1]: 327.5
参考例20、21、22、24、78に記載の化合物および、対応するベンジルクロライドまたはベンジルブロマイドを用いて、実施例20~40に記載の方法と同様の方法によって表17に示すとおり実施例369~402の化合物を製造した。
1-{1-(2,2-ジメチルプロピル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(2,2-Dimethylpropyl)-5-[(4-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 0.92 (9H, s), 2.67 (3H, s), 3.73 (2H, s), 4.08 (2H, s), 5.01 (2H, s), 5.82 (1H, s), 7.08 (2H, m), 7.35 (2H, m), 9.39 (2H, br s).
1-{5-[(2,4-ジフルオロベンジル)オキシ]-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(2,4-Difluorobenzyl)oxy]-1-(2,2-dimethylpropyl)-1H-pyrazol-3-yl}-N-
methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 0.93 (9H, s), 1.92 (1H, br s), 2.46 (3H, s), 3.67 (2H, s), 3.69 (2H, s), 5.05 (2H, s), 5.60 (1H, s), 6.83-6.94 (2H, m), 7.40 (1H, m).
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(2-Chloro-4-fluorobenzyl)oxy]-1-(2,2-dimethylpropyl)-1H-pyrazol-3-
yl}-N-methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 0.95 (9H, s), 2.47 (3H, s), 3.67 (2H, s), 3.73 (2H, s), 5.10 (2H, s), 5.59 (1H, s), 7.03 (1H, td, J = 8.3, 2.6 Hz), 7.18 (1H, dd, J = 8.4, 2.6 Hz), 7.45 (1H, dd, J = 8.5, 6.0 Hz). 1H消失(NH)
1-{1-(2,2-ジメチルプロピル)-5-[(4-フルオロ-2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{1-(2,2-Dimethylpropyl)-5-[(4-fluoro-2-methylbenzyl)oxy]-1H-pyrazol-3-
yl}-N-methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 0.91 (9H, s), 2.35 (3H, s), 2.71 (3H, s), 3.70 (2H, s), 4.11 (2H, s), 5.00 (2H, s), 5.87 (1H, s), 6.87-6.96 (2H, m), 7.30 (1H, m), 9.48 (2H, s).
1-{1-(2,2-ジメチルプロピル)-5-[(2-フルオロ-5-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(2,2-Dimethylpropyl)-5-[(2-fluoro-5-methylbenzyl)oxy]-1H-pyrazol-3-
yl}-N-methylmethanamine
1H-NMR (CDCl3) δ: 0.94 (9H, s), 2.33 (3H, s), 2.46 (3H, s), 3.66 (2H, s), 3.71 (2H, s), 5.06 (2H, s), 5.59 (1H, s), 6.97 (1H, t, J = 9.0 Hz), 7.13 (1H, m), 7.21 (1H, m). 1H消失(NH)
1-{1-(2,2-ジメチルプロピル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{1-(2,2-Dimethylpropyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 0.93 (9H, s), 2.64 (3H, s), 3.74 (2H, s), 4.13 (2H, s), 5.08 (2H, s), 6.24 (1H, s), 7.00 (1H, m), 7.30 (1H, m), 9.88 (2H, br s).
1-{5-[(2-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2-Fluorobenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.90 (6H, d, J = 6.6 Hz), 1.52 (1H, m), 1.72 (2H, q, J = 7.2 Hz), 2.73 (3H, t, J = 5.1 Hz), 4.10 (2H, t, J = 7.4 Hz), 4.31 (2H, s), 5.29 (2H, s), 6.67 (1H, s), 7.13 (1H, t, J = 9.3 Hz), 7.21 (1H, t, J = 7.4 Hz), 7.38-7.49 (2H, m), 10.22 (2H, br s).
1-{5-[(3-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(3-Fluorobenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-methyl-methanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.91 (6H, d, J = 6.6 Hz), 1.52 (1H,m), 1.65 (2H, q, J = 7.2 Hz), 2.62 (3H, s), 3.98 (2H, t, J = 7.3 Hz), 4.11 (2H, s), 5.10 (2H, s), 6.18 (1H, s), 7.03-7.18 (3H, m), 7.36 (1H, m), 9.82 (2H, s).
1-{5-[(4-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(4-Fluorobenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-methyl-methanamine
1H-NMR (400 MHz, CDCl3) δ: 0.90 (6H, d, J = 6.3 Hz), 1.53 (1H, m), 1.63 (2H, m), 2.46 (3H, s), 3.64 (2H, s), 3.92 (2H, t, J = 7.4 Hz), 5.01 (2H, s), 5.52 (1H, s), 7.08 (2H, t, J = 8.2 Hz), 7.36 (2H, m). 1H消失(NH)
1-{5-[(2,4-ジフルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(2,4-Difluorobenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-methyl-methanamine
1H-NMR (400 MHz, CDCl3) δ: 0.89 (6H, d, J = 6.6 Hz), 1.53 (1H, m), 1.63 (2H, m), 1.83 (1H, br s), 2.46 (3H, s), 3.66 (2H, s), 3.91 (2H, t, J = 7.4 Hz), 5.07 (2H, s), 5.58 (1H, s), 6.84-6.93 (2H, m), 7.40 (1H, m).
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン トリフルオロ酢酸塩
1-{5-[(2-chloro-4-fluorobenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-
methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 0.89 (6H, d, J = 6.4 Hz), 1.50 (1H, m), 1.62 (2H, dt, J = 6.8, 6.8 Hz), 2.66 (3H, s), 3.94 (2H, t, J = 7.4 Hz), 4.07 (2H, s), 5.11 (2H, s), 5.84 (1H, s), 7.02 (1H, td, J = 8.3, 2.5 Hz), 7.19 (1H, dd, J = 8.4, 2.6 Hz), 7.43 (1H, dd, J = 8.6, 6.1 Hz), 9.46 (2H, br s).
1-{5-[(4-フルオロ-2-メチルベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(4-fluoro-2-methylbenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-
methylmethanamine
1H-NMR (400 MHz, CDCl3) δ: 0.89 (6H, d, J = 6.6 Hz), 1.53 (1H, m), 1.62 (2H, m), 1.85 (1H, br s), 2.37 (3H, s), 2.48 (3H, s), 3.67 (2H, s), 3.90 (2H, t, J = 7.4 Hz), 5.00 (2H, s), 5.59 (1H, s), 6.87-6.96 (2H, m), 7.31 (1H, dd, J = 8.3, 5.9 Hz).
1-{5-[(2-フルオロ-5-メチルベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(2-fluoro-5-methylbenzyl)oxy]-1-(3-methylbutyl)-1H-pyrazol-3-yl}-N-
methylmethanamine
1H-NMR (400 NHz, CDCl3) δ: 0.91 (6H, d, J = 6.6 Hz), 1.55 (1H, m), 1.64 (2H, dt, J = 6.8, 6.8 Hz), 1.75 (1H, br s), 2.35 (3H, s), 2.46 (3H, s), 3.65 (2H, s), 3.93 (2H, t, J = 7.4 Hz), 5.08 (2H, s), 5.58 (1H, s), 6.97 (1H, t, J = 9.0 Hz), 7.10-7.14 (1H, m), 7.21 (1H, dd, J = 7.0, 1.8 Hz).
参考例77に記載の化合物および、対応するベンジルクロライドまたはベンジルブロマイドを用いて、実施例20~40に記載の方法と同様の方法によって表18に示すとおり実施例403~406の化合物を製造した。
参考例2、3および74記載の化合物および、対応するベンジルクロライドまたはベンジルブロマイドを用いて、実施例20~40に記載の方法と同様の方法によって表19に示すとおり実施例407~426の化合物を製造した。
1H-NMR (300 MHz, CDCl3) δ: -0.02 (2H, m), 0.38 (2H, m), 0.60 (1H, m), 1.63 (2H, m), 2.63 (3H, s), 4.00 (2H, t, J = 6.7 Hz), 4.11 (2H, s), 5.13 (2H, s), 6.17 (1H, s), 7.02-7.10 (2H, m), 7.21 (1H, m), 9.81 (2H, br s).
1H-NMR (300 MHz, CDCl3) δ: -0.02 (2H, m), 0.38 (2H, m), 0.60 (1H, m), 1.63 (2H, m), 2.63 (3H, s), 4.00 (2H, t, J = 6.5 Hz), 4.11 (2H, s), 5.11 (2H, s), 6.16 (1H, s), 7.06 (1H, t, J = 9.0 Hz), 7.32 (1H, m), 7.42 (1H, m), 9.78 (2H, br s).
1H-NMR (300 MHz, CDCl3) δ: -0.03 (2H, m), 0.36 (2H, m), 0.59 (1H, m), 1.64 (2H, m), 2.34 (3H, s), 2.66 (3H, s), 4.05 (2H, t, J = 6.3 Hz), 4.16 (2H, s), 5.13 (2H, s), 6.30 (1H, s), 6.98 (1H, t, J = 9.0 Hz), 7.15 (1H, m), 7.23 (1H, m), 9.90 (2H, br s).
1H-NMR (CDCl3) δ: -0.05 (2H, m), 0.38 (2H, m), 0.58 (1H, m), 1.62 (2H, m), 2.67 (3H, s), 4.01 (2H, t, J = 7.0 Hz), 4.07 (2H, s), 5.05 (2H, s), 5.84 (1H, s), 6.99 (1H, td, J = 9.6, 6.4 Hz), 7.26 (1H, m), 9.48 (2H, br s).
参考例69および70記載の化合物および、対応するベンジルクロライドまたはベンジルブロマイドを用いて、実施例20~40に記載の方法と同様の方法によって表20に示すとおり実施例427~434の化合物を製造した。
1-(2-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-3-[(メチルアミノ)メチル]-1H-ピラゾール-1-イル}エチル)シクロペンタノール 塩酸塩
1-(2-{5-[(5-Chloro-2-fluorobenzyl)oxy]-3-[(methylamino)methyl]-1H-pyrazol-1-yl}ethyl)cyclopentanol hydrochloride
参考例79に記載の化合物(IVmm)(100mg,0.30mmol)と炭酸セシウム(163mg,0.50mmol)のアセトニトリル(1.2mL)溶液に室温で2-フルオロ-5-クロロベンジルクロライド(70μL,0.44mmol)を加え、反応混合物を室温で4日間攪拌した。酢酸エチルで希釈して塩をろ別し、溶媒を減圧留去して得た濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=1:2)で精製することで化合物(Irr)(53mg,37%)を無色油状物として得た。
化合物(Irr)(21mg,0.044mmol)のクロロホルム(0.4mL)溶液に室温で4N-塩化水素-1,4-ジオキサン溶液(0.6mL)を加え、反応混合物を室温で50分間攪拌した。溶媒を減圧留去し、得られた濃縮残渣にジエチルエーテルを加えて析出物をろ取し、減圧乾燥することで標記化合物(IIrr)(16mg,87%)を淡褐色固体として得た。
1H-NMR (300 MHz, CDCl3) δ: 1.47 (2H, m), 1.61 (2H, m), 1.80 (4H, m), 2.03 (2H, t, J = 6.5 Hz), 2.64 (3H, s), 4.08 (2H, s), 4.14 (2H, t, J = 6.7 Hz), 5.12 (2H, s), 6.15 (1H, s), 7.06 (1H, t, J = 9.0 Hz), 7.32 (1H, m), 7.43 (1H, m), 9.79 (2H, br s). 1H消失(OH)
1-(2-{5-[(2,5-ジフルオロベンジル)オキシ]-3-[(メチルアミノ)メチル]-1H-ピラゾール-1-イル}エチル)シクロペンタノール 塩酸塩
1-(2-{5-[(2,5-Difluorobenzyl)oxy]-3-[(methylamino)methyl]-1H-pyrazol-1-yl}-ethyl)cyclopentanol hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.47 (2H, m), 1.61 (2H, m), 1.78 (2H, m), 2.04 (2H, m), 2.33 (2H, m), 2.64 (3H, s), 4.09 (2H, s), 4.16 (2H, m), 5.14 (2H, s), 6.18 (1H, s), 7.03-7.09 (2H, d, m), 7.18 (1H, m), 9.81 (2H, br s). 1H消失(OH)
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-[2-(1-メトキシシクロペンチル)エチル]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-[2-(1-methoxycyclopentyl)ethyl]-1H-
pyrazol-3-yl}-N-methylmethanamine hydrochloride
実施例435に記載の化合物(Irr)(38mg,0.079mmol)のジメチルホルムアミド(0.4mL)溶液に室温で水素化ナトリウム(55%suspension,12mg,0.28mmol)を加え、さらにヨウ化メチル(20μL,0.31mmol)を室温で加えて、反応混合物を室温で1夜間攪拌した。5%硫酸水素カリウム水溶液を加え、酢酸エチルで抽出し、有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=1:2)で精製することで化合物(Iss)(26mg,66%)を淡黄色油状物として得た。
実施例1の工程(V)に記載の方法と同様にして標記化合物(IIss)を得た。
1H-NMR (300 MHz, CDCl3) δ: 1.47 (2H, m), 1.55-1.74 (4H, m), 1.83 (2H, m), 2.02 (2H, m), 2.63 (3H, t, J = 5.0 Hz), 3.13 (3H, s), 4.01 (2H, m), 4.09 (2H, s), 5.12 (2H, s), 6.15 (1H, s), 7.05 (1H, t, J = 9.0 Hz), 7.29-7.34 (1H, m), 7.45 (1H, dd, J = 6.2, 2.4 Hz), 9.82 (2H, br s).
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-[2-(1-メトキシシクロペンチル)エチル]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-[2-(1-methoxycyclopentyl)ethyl]-1H-
pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.39 (2H, m), 1.62 (2H, m), 1.67 (2H, m), 1.83 (2H, m), 2.02 (2H, m), 2.62 (3H, t, J = 5.0 Hz), 3.12 (3H, s), 4.01 (2H, m), 4.09 (2H, s), 5.13 (2H, s), 6.15 (1H, s), 7.00-7.11 (2H, dd, m), 7.18 (1H, m), 9.82 (2H, br s).
参考例80~82記載の化合物および、対応するベンジルクロライドまたはベンジルブロマイドを用いて、実施例20~40に記載の方法と同様の方法によって表21に示すとおり実施例439~449の化合物を製造した。
1-[5-(ベンジルオキシ)-1-{[1-(トリフルオロメチル)シクロプロピル]メチル}-1H-ピラゾール-3-イル]-N-メチルメタンアミン トリフルオロ酢酸塩
1-[5-(Benzyloxy)-1-{[1-(trifluoromethyl)cyclopropyl]methyl}-1H-pyrazol-3-
yl]-N-methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 0.82-0.91 (m, 2H), 0.97-1.10 (m, 2H), 2.61 (s, 3H), 4.02 (s, 2H), 4.16 (s, 2H), 5.06 (s, 2H), 5.77 (s, 1H), 7.32-7.48 (m, 5H), 9.56 (br s, 2H).
1-(5-[(4-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロプロピル]メチル}-1H-ピラゾール-3-イル]-N-メチルメタンアミン トリフルオロ酢酸塩
1-(5-[(4-Fluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclopropyl]methyl}-1H-
pyrazol-3-yl)-N-methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 0.82-0.92 (m, 2H), 0.97-1.08 (m, 2H), 2.62 (s, 3H), 4.03 (s, 2H), 4.15 (s, 2H), 5.02 (s, 2H), 5.77 (s, 1H), 7.08 (t, J = 8.6 Hz, 2H), 7.37 (dd, J = 8.6, 5.3 Hz, 2H), 9.51 (br s, 2H).
1-(5-[(2,5-ジフルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロプロピル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン トリフルオロ酢酸塩
1-(5-[(2,5-Difluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclopropyl]methyl}-1H-pyrazol-3-yl)-N-methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 0.83-0.93 (m, 2H), 0.97-1.06 (m, 2H), 2.63 (s, 3H), 4.04 (s, 2H), 4.17 (s, 2H), 5.10 (s, 2H), 5.81 (s, 1H), 6.99-7.19 (m, 3H), 9.51 (br s, 2H).
1-(5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロプロピル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン トリフルオロ酢酸塩
1-(5-[(5-Chloro-2-fluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclopropyl]-methyl}-1H-pyrazol-3-yl)-N-methylmethanamine trifluoroacetate
1H-NMR (300 MHz, CDCl3) δ: 0.84-0.94 (m, 2H), 0.99-1.08 (m, 2H), 2.63 (s, 3H), 4.04 (s, 2H), 4.17 (s, 2H), 5.09 (s, 2H), 5.82 (s, 1H), 7.06 (t, J = 9.1 Hz, 1H), 7.29-7.37 (m, 1H), 7.39-7.46 (m, 1H), 9.56 (br s, 2H).
N-メチル-1-(5-[(2,4,5-トリフルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロプロピル]メチル}-1H-ピラゾール-3-イル)メタンアミン 塩酸塩
N-Methyl-1-(5-[(2,4,5-trifluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclo-propyl]methyl}-1H-pyrazol-3-yl)methanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 0.85-0.95 (m, 2H), 0.98-1.07 (m, 2H), 2.60 (t, J = 5.4 Hz, 3H), 4.09 (br s, 2H), 4.16 (s, 2H), 5.09 (s, 2H), 6.14 (s, 1H), 7.00 (dt, J = 9.5, 6.5 Hz, 1H), 7.28-7.37 (m, 1H), 9.84 (br s, 2H).
N-メチル-1-(5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロブチル]メチル}-1H-ピラゾール-3-イル)メタンアミン 塩酸塩
N-methyl-1-(5-[(5-chloro-2-fluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclo-butyl]methyl}-1H-pyrazol-3-yl)methanamine hydrochloride
1H-NMR (300 MHz,CDCl3) δ: 1.53-2.01 (m, 2H), 2.19-2.37 (m, 4H), 2.62 (s, 3H), 4.12 (s, 2H), 4.19 (s, 2H), 5.12 (s, 2H), 6.18 (s, 1H), 7.06 (t, J = 9.0 Hz, 1H), 7.32-7.41 (m, 2H), 9.83 (br s, 2H).
1-[5-(ベンジルオキシ)-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル]-N-メチルメタンアミン 塩酸塩
1-[5-(Benzyloxy)-1-{[1-(trifluoromethyl)cyclopentyl]methyl}-1H-pyrazol-3-
yl]-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.36-1.77 (m, 4H), 1.80-2.08 (m, 4H), 2.61 (s, 3H), 4.09 (s, 4H), 5.09 (s, 2H), 6.09 (s, 1H), 7.35-7.46 (m, 5H), 9.56 (br s, 2H).
1-(5-[(4-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン 塩酸塩
1-(5-[(4-Fluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclopentyl]methyl}-1H-
pyrazol-3-yl)-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.36-1.77 (m, 4H), 1.79-2.05 (m, 4H), 2.61 (s, 3H), 3.96-4.19 (m, 4H), 5.06 (s, 2H), 6.13 (s, 1H), 7.09 (t, J = 8.3 Hz, 2H), 7.32-7.44 (m, 2H), 9.73 (br s, 2H).
1-(5-[(2,5-ジフルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン 塩酸塩
1-(5-[(2,5-Difluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclopentyl]methyl}-1H-pyrazol-3-yl)-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.39-1.73 (m, 4H), 1.80-2.07 (m, 4H), 2.62 (s, 3H), 4.09 (s, 4H), 5.13 (s, 2H), 6.15 (s, 1H), 7.01-7.22 (m, 3H), 9.82 (br s, 2H).
1-(5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン 塩酸塩
1-(5-[(5-Chloro-2-fluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclopentyl]-methyl}-1H-pyrazol-3-yl)-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.38-1.71 (m, 4H), 1.78-2.03 (m, 4H), 2.61 (s, 3H), 4.09 (s, 4H), 5.12 (s, 2H), 6.15 (s, 1H), 7.06 (t, J = 9.0 Hz, 1H), 7.29-7.37 (m, 1H), 7.39-7.47 (m, 1H), 9.73 (br s, 2H).
N-メチル-1-(5-[(2,4,5-トリフルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)メタンアミン
N-Methyl-1-(5-[(2,4,5-trifluorobenzyl)oxy]-1-{[1-(trifluoromethyl)cyclo-pentyl]methyl}-1H-pyrazol-3-yl)methanamine hydrochloride
1H-NMR (300 MHz, CDCl3) δ: 1.40-1.73 (m, 4H), 1.81-2.01 (m, 4H), 2.61 (s, 3H), 4.07 (s, 2H), 4.10 (s, 2H), 5.08 (s, 2H), 6.15 (s, 1H), 6.88-7.08 (m, 2H), 9.78 (br s, 2H).
参考例11記載の化合物および、対応するベンジルクロライドまたはベンジルブロマイドを用いて、実施例20~40に記載の方法と同様の方法によって表22に示すとおり実施例450~453の化合物を製造した。
1-{5-[(2,4-ジフルオロベンジル)オキシ]-1-(2-オキサビシクロ[2.2.2]オクト-3-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
1-{5-[(2,4-Difluorobenzyl)oxy]-1-(2-oxabicyclo[2.2.2]oct-3-ylmethyl)-1H-
pyrazol-3-yl}-N-methylmethanamine
1H-NMR (300 MHz, CDCl3) δ: 1.43-1.68 (6H, m), 1.87-2.05 (3H, m), 2.46 (3H, brs), 3.65 (2H, brs), 3.76 (1H, brs), 3.94 (1H, dd, J = 13.4, 7.0 Hz), 4.06-4.21 (2H, m), 5.08 (2H, s), 5.57 (1H, s), 6.81-6.95 (2H, m), 7.37-7.47 (1H, m).
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(2-オキサビシクロ[2.2.2]オクト-3-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(2-oxabicyclo[2.2.2]oct-3-ylmethyl)-1H-
pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CD3OD) δ: 1.48-1.81 (6H, m), 1.86-2.01 (3H, m), 2.70 (3H, brs), 3.71 (1H, brs), 4.00 (1H, dd, J = 17.3, 9.8 Hz), 4.07 (2H, brs), 4.12-4.22 (2H, m), 5.24 (2H, s), 5.90 (1H, s), 7.10-7.24 (2H, m), 7.28-7.35 (1H, m).
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2-オキサビシクロ[2.2.2]オクト-3-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(2-oxabicyclo[2.2.2]oct-3-ylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
1H-NMR (300 MHz, CD3OD) δ: 1.49-1.78 (6H, m), 1.87-2.03 (3H, m), 2.71 (3H, brs), 3.72 (1H, brs), 4.00 (1H, dd, J = 17.6, 9.9 Hz), 4.06 (2H, brs), 4.11-4.22 (2H, m), 5.24 (2H, s), 5.89 (1H, s), 7.19 (1H, dd, J = 9.2, 9.2 Hz), 7.38-7.45 (1H, m), 7.56 (1H, dd, J = 6.2, 2.6 Hz).
N-メチル-1-{1-(2-オキサビシクロ[2.2.2]オクト-3-イルメチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン 塩酸塩
N-Methyl-1-{1-(2-oxabicyclo[2.2.2]oct-3-ylmethyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}methanamine hydrochloride
1H-NMR (300MHz, CD3OD) δ: 1.47-1.80 (6H, m), 1.85-2.02 (3H, m), 2.71 (3H, brs), 3.70 (1H, brs), 3.98 (1H, dd, J = 17.3, 9.6 Hz), 4.06 (2H, brs), 4.10-4.21 (2H, m), 5.21 (2H, s), 5.90 (1H, s), 7.21-7.33 (1H, m), 7.48-7.58 (1H, m).
参考例33、83および84記載の化合物および、対応するベンジルクロライドまたはベンジルブロマイドを用いて、実施例20~40に記載の方法と同様の方法によって表23に示すとおり実施例454~469の化合物を製造した。
(-)-1-{1-(1-シクロヘキシルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
(-)-1-{1-(1-Cyclohexylethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine
実施例471
(+)-1-{1-(1-シクロヘキシルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン
(+)-1-{1-(1-Cyclohexylethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine
実施例303に記載の化合物(Itt)を、以下の条件を用いた液体カラムクロマトグラフィーを行い、より短い保持時間で溶出する化合物(IItt)および、引き続いて溶出する化合物(IIItt)をいずれも淡褐色油状物として得た。
液体カラムクロマトグラフィー条件を以下に記す。
カラム:CHIRALCEL(登録商標)OZ-H
5cmI.D.×25cm
移動相:アセトニトリル:ジイソプロピルアミン=100:0.1(v/v)
流速:47mL/分
温度:30℃
観測UV波長:268nm
化合物(IItt):
1H-NMR (300 MHz, CDCl3) δ: 0.83 (1H, m), 0.96 (1H, m), 1.06-1.33 (4H, m), 1.41 (3H, d, J = 7.0 Hz), 1.57-1.90 (6H, m), 2.46 (3H, s), 3.66 (2H, s), 3.92-4.02 (1H, m), 5.09 (2H, s), 5.55 (1H, s), 6.98-7.17 (3H, m).
比旋光度:[α]D26-17.3(c.1.47,CHCl3)
化合物(IIItt):
比旋光度:[α]D26+19.2(c.1.03,CHCl3)
(-)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(1-シクロヘキシルエチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
(-)-1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(1-cyclohexylethyl)-1H-pyrazol-3-yl}-N-methylmethanamine
実施例473
(+)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(1-シクロヘキシルエチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン
(+)-1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(1-cyclohexylethyl)-1H-pyrazol-3-yl}-N-methylmethanamine
実施例304に記載の化合物(Iuu)を、以下の条件を用いた液体カラムクロマトグラフィーを行い、より短い保持時間で溶出する化合物(IIuu)および、引き続いて溶出する化合物(IIIuu)をいずれも淡褐色油状物として得た。
液体カラムクロマトグラフィー条件を以下に記す。
カラム:CHIRALCEL(登録商標)OZ-H
5cmI.D.×25cm
移動相:アセトニトリル:ジイソプロピルアミン=100:0.1(v/v)
流速:47mL/分
温度:25℃
観測UV波長:272nm
化合物(IIuu):
1H-NMR (300 MHz, CDCl3) δ: 0.81 (1H, m), 0.96 (1H, m), 1.06-1.28 (4H, m), 1.41 (3H, d, J = 6.8 Hz), 1.48-1.90 (6H, m), 2.46 (3H, s), 3.65 (2H, s), 3.96 (1H, m), 5.08 (2H, s), 5.54 (1H, s), 7.05 (1H, t, J = 9.0 Hz), 7.29 (1H, m), 7.41 (1H, dd, J = 6.2, 2.8 Hz).
比旋光度:[α]D26-13.1(c.1.13,CHCl3)
化合物(IIIuu):
比旋光度:[α]D26+11.6(c.2.04,CHCl3)
(-)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
(-)-1-{5-[(5-chloro-2-fluorobenzyl)oxy]-1-(tetrahydro-2H-pyran-2-ylmethyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
実施例92~114に記載の方法によって製造した化合物(Iww)を、以下の条件を用いた液体カラムクロマトグラフィーを行い、より短い保持時間で溶出する化合物(IIww)および、引き続いて溶出する化合物(IIIww)をいずれも淡褐色油状物として得た。
液体カラムクロマトグラフィー条件を以下に記す。
カラム:CHIRALCEL(登録商標)OZ-H
5cmI.D.×25cm
移動相:アセトニトリル
流速:47mL/分
温度:40℃
観測UV波長:271nm
化合物(IIww):
比旋光度:[α]D26-5.0(c.1.04,CHCl3)
化合物(IIIww):
比旋光度:[α]D26+3.7(c.1.07,CHCl3)
化合物(IIww)を用いて、実施例1の工程(V)に記載の方法と同様にして化合物(IVww)を得た。
1H-NMR (300 MHz, CDCl3) δ: 1.29 (1H, m), 1.43-1.67 (4H, m), 1.84 (1H, m), 2.62 (3H, s), 3.36 (1H, t, J = 10.8 Hz), 3.67 (1H, m), 3.88 (1H, dd, J = 14.1, 4.4 Hz), 3.97 (1H, m), 4.05 (1H, m), 4.09 (2H, s), 5.13 (2H, s), 6.11 (1H, s), 7.04 (1H, t, J = 9.0 Hz), 7.30 (1H, m), 7.47 (1H, dd, J = 6.0, 2.5 Hz), 9.78 (2H, br s).
比旋光度:[α]D26-6.6(c.1.21,CHCl3)
(+)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
(+)-1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(tetrahydro-2H-pyran-2-ylmethyl-)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
実施例の工程(i)に記載の化合物(IIIww)を用いて、実施例1の工程(V)に記載の方法と同様にして化合物(Vww)を得た。
1H-NMR (300 MHz, CDCl3) δ: 1.28 (1H, m), 1.41-1.65 (4H, m), 1.84 (1H, m), 2.61 (3H, s), 3.36 (1H, t, J = 11.1 Hz), 3.66 (1H, m), 3.88 (1H, dd, J = 13.9, 4.8 Hz), 3.97 (1H, m), 4.05 (1H, m), 4.09 (2H, s), 5.13 (2H, s), 6.11 (1H, s), 7.04 (1H, t, J = 9.0 Hz), 7.29 (1H, m), 7.47 (1H, dd, J = 6.1, 2.6 Hz), 9.79 (2H, br s).
比旋光度:[α]D26+6.0(c.1.14,CHCl3)
(-)-1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルエタンアミン
(-)-1-{1-(2-Cyclopentylethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-
yl}-N-methylethanamine
実施例477
(+)-1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルエタンアミン (+)-1-{1-(2-Cyclopentylethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-
yl}-N-methylethanamine
実施例315に記載の化合物(Ixx)のフリー体を、以下の条件を用いた液体カラムクロマトグラフィーを行い、より短い保持時間で溶出する化合物(IIxx)および、引き続いて溶出する化合物(IIIxx)をいずれも淡褐色油状物として得た。
液体カラムクロマトグラフィー条件を以下に記す。
カラム:CHIRALPAK(登録商標)AY-H
5cmI.D.×25cm
移動相:n-ヘキサン:エタノール:ジエチルアミン=95:5:0.1(v/v)
流速:47mL/分
温度:40℃
観測UV波長:268nm
化合物(IIxx):
1H-NMR (300 MHz, CDCl3) δ: 1.09 (2H, m), 1.35 (3H, d, J = 6.8 Hz), 1.44-1.63 (5H, m), 1.69-1.83 (5H, m), 2.37 (3H, s), 3.64 (1H, q, J = 6.7 Hz), 3.94 (2H, t, J = 7.2 Hz), 5.10 (2H, s), 5.52 (1H, s), 6.98-7.11 (2H, m), 7.15 (1H, m).
比旋光度:[α]D26-25.4(c.1.42,CHCl3)
化合物(IIIxx):
比旋光度:[α]D26+25.0(c.1.60,CHCl3)
1-{1-(3-メチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン 塩酸塩
1-{1-(3-Methylbutyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-methanamine hydrochloride
1H-NMR (400 MHz, CDCl3) δ: 0.85 (6H, t, J = 6.4 Hz), 1.42-1.52 (1H, m), 1.64-1.74 (2H, m), 4.15 (2H, br s), 4.60 (2H, br s), 5.37 (2H, br s), 6.90-7.00 (2H, m), 7.48-7.52 (1H, m), 9.06 (3H, br s).
1-{1-(シクロペンチルメチル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン
1-{1-(Cyclopentylmethyl)-5-[(4-fluorobenzyl)oxy]-1H-pyrazol-3-yl}-methanamine
実施例1の工程(i)~(iii)に記載の方法と同様にして製造した化合物(Iyy)(300mg,0.99mmol)、トリフェニルホスフィン(310mg,1.2mmol)およびフタルイミド(160mg,1.1mmol)のテトラヒドロフラン(5mL)溶液に、ジイソプロピルアゾジカルボキシレート(248μL,1.2mmol)を室温で加えて、反応混合物を室温で1夜間攪拌した。溶媒を減圧留去し、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=3:1)で精製することで化合物(IIyy)(550mg)を得た。
化合物(IIyy)(550mg,0.99mmol相当)にメチルアミン(40%メタノール溶液,5mL)を加え、反応混合物を40℃で30分間攪拌した。溶媒を減圧留去後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(クロロホルム:メタノール=10:1)で精製することで化合物(IIIyy)(156mg,52% in 2 steps)を淡褐色油状物として得た。
1H-NMR (300 MHz, CDCl3) δ: 1.16-1.34 (m, 2H), 1.43-1.75 (m, 6H), 2.30-2.48 (m, 1H), 3.76 (s, 2H), 3.83 (d, J = 7.5 Hz, 2H), 5.02 (s, 2H), 5.49 (s, 1H), 7.09 (t, J = 8.6 Hz, 2H), 7.37 (dd, J = 8.6, 5.5 Hz, 2H).
1-{5-[(4-フルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(4-Fluorobenzyl)oxy]-1-(3-fluoro-3-methylbutyl)-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
3-メチル-1,3-ブタンジオール(2.5g,24mmol)および4-N,N-ジメチルアミノピリジン(3.08g,25mmol)のジクロロメタン(96mL)に水浴で冷却しながらp-トルエンスルホニルクロライド(4.80g,25mmol)のジクロロメタン(32mL)溶液を滴下し、反応混合物を室温で22時間攪拌した。さらにトリエチルアミン(3.3mL,24mmol)を加えて反応混合物を100分間攪拌した。水(50mL)およびクロロホルム(30mL)を加えて分液し、有機層を水(50mL×2)、飽和食塩水(50mL)で洗浄後、無水硫酸ナトリウムで乾燥して有機溶媒を減圧留去することで化合物(Iddd)の粗生成物(6.43g)を得た。これをさらに精製することなく、ジ-tert-ブチル ヒドラゾジカルボキシレート(5.57g,24mmol)および炭酸セシウム(9.38g,29mmol)とともにジメチルホルムアミド(24mL)に溶解させて、反応混合物を60℃で3時間攪拌した。室温に冷却後、酢酸エチル(100mL)で希釈して、塩をろ別し、ろ液に酢酸エチル(100mL)を加えて水(40mL)で洗浄した。溶媒を減圧留去後、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=1:1)で精製することで化合物(IIddd)(3.40g,44%)を無色油状物として得た。
化合物(IIddd)(3.40g,10.7mmol)のメタノール(11mL)溶液に濃塩酸(5.3mL)を加え、反応混合物を室温で3時間攪拌した。メタノールを減圧留去後、濃縮残渣にトルエンを加えて溶媒を減圧留去することを3回繰り返すことで化合物(IIIddd)の粗生成物(700mg)を得た。これをさらに精製することなく、トリエチルアミン(1.2mL,8.7mmol)とともにエタノール(7.3mL)に溶解させて45℃で攪拌し、さらに参考例1に記載の化合物(IIa)(863mg,3.3mmol)のエタノール(2mL)溶液を加えて、反応混合物を80℃で2時間攪拌した。室温に冷却後、5%硫酸水素カリウム水溶液を加えて酢酸エチルで抽出した。有機層を無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し、得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(n-ヘキサン:酢酸エチル=1:2→酢酸エチル→クロロホルム:メタノール=10:1)で精製することで化合物(IVddd)(474mg,45%)を淡黄色固体として得た。
化合物(IVddd)および4-フルオロベンジルクロライドを用いて、実施例20~40に記載の方法と同様の方法によって化合物(Vddd)を淡黄色油状物として得た。
化合物(Vddd)(58mg,0.14mmol)およびDBU(62μL,0.41mmol)のジクロロメタン(0.7mL)溶液に、氷冷下でXtalFluor-E(登録商標)(79mg,0.35mmol)を加え、反応混合物を氷冷下20分、引き続いて室温で30分間攪拌した。飽和重曹水を加えてクロロホルムで抽出し、有機層を無水硫酸ナトリウムで乾燥後、溶媒を減圧留去した。得られた濃縮残渣をPTLC(n-ヘキサン:酢酸エチル=1:1)で精製することで化合物(VIddd)(17mg,29%)を無色油状物として得た。
化合物(VIddd)を用いて、実施例1の工程(V)に記載の方法と同様によって化合物(VIIddd)を得た。
1H-NMR (300 MHz, CDCl3) δ: 1.35 (6H, d, J = 21.3 Hz), 2.06 (2H, dt, J = 19.5, 7.5 Hz), 2.61 (3H, s), 4.07 (4H, m), 5.06 (2H, s), 6.13 (1H, s), 7.08 (2H, t, J = 8.4 Hz), 7.38 (2H, m), 9.77 (2H, br s).
Obs MS [M+1]: 324.6
実施例480に記載の方法と同様の方法によって、実施例481~483の化合物を製造した。
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(2,5-Difluorobenzyl)oxy]-1-(3-fluoro-3-methylbutyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
Obs MS [M+1]: 342.3
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{5-[(5-Chloro-2-fluorobenzyl)oxy]-1-(3-fluoro-3-methylbutyl)-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
Obs MS [M+1]: 358.2
1-{1-(3-フルオロ-3-メチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(3-Fluoro-3-methylbutyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-methylmethanamine hydrochloride
Obs MS [M+1]: 360.3
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン リン酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine monophosphate
参考例85に記載の化合物(Izz)(48.0g,200mmol)および炭酸カリウム(41.8g,300mmol)のジメチルホルムアミド(192g)混合溶液に室温で2,5-ジフルオロベンジルクロライド(36.0g,220mmol)を室温で滴下した。反応混合物を室温で5.5時間攪拌した。生じた塩をろ別後、ろ上物をジメチルホルムアミド(48g)で洗浄した。得られたろ液(293g)のうちの73.3g(1/4量)を35℃で水(180g)に1時間で滴下し、そのまま1時間攪拌後、15℃まで冷却してさらに1時間攪拌した。析出物をろ取し、ジメチルホルムアミド(8.4g)と水(25g)の混合溶媒で洗浄し、さらに2-プロパノール(15.6g×2)で洗浄後、減圧乾燥することで化合物(IIzz)(16.6g,90%)を得た。
化合物(IIzz)(35.0g,100mmol)および水素化ホウ素ナトリウム(7.99g,210mmol)のテトラヒドロフラン(175g)懸濁溶液に35-45℃でメタノール(30.8g)を15分間で滴下し、反応混合物を2時間攪拌した。室温に冷却後、トルエン(262.5g)を加えて、3.6%塩酸(262.5g)を40℃以下に保ちながら15分で滴下後、分液した。有機層を水(262.5g×2)で洗浄後、減圧濃縮することで化合物(Iw)の粗生成物(32.1g)を得た。
化合物(Iw)(5.00g,15.5mmol)およびトリエチルアミン(2.35g,23mmol)のテトラヒドロフラン(45.5g)溶液に、10℃以下に保ちながらメタンスルホニルクロライド(2.13g,18.6mmol)を滴下し、反応混合物を5℃付近で1時間攪拌後、ゆっくり室温に昇温させて析出物をろ別することで得られた化合物(IIIzz)の溶液をそのまま次の反応に用いた。40%メチルアミンメタノール溶液(36g)に氷冷下で化合物(IIIzz)の溶液を30分間で滴下し、反応混合物をそのまま1時間攪拌した。トルエン(50g)および水(40)を加えてゆっくり室温に昇温させた後に分液し、有機層を減圧下濃縮した。得られた濃縮残渣(5.09g)に2-プロパノール(39g)およびリン酸(75%,2.10g)を加えて、混合溶液を80℃まで昇温させ、固形物の溶解を目視にて確認後、60-65℃で攪拌し、固形物の析出を確認後、60-65℃で1時間攪拌した。引き続き混合溶液を6時間で3℃まで冷却後、3℃で7時間攪拌し、生じた析出物をろ取し、冷2-プロパノール(5g)で洗浄後、減圧乾燥することで標記化合物(IVzz)(4.81g,72%)を白色結晶性固体として得た。
1H-NMR (300 MHz, DMSO-d6) δ: 1.07-1.30 (m, 2H), 1.35-1.64 (m, 6H), 2.15-2.32 (m ,1H), 2.37 (s, 3H), 3.72 (s, 2H), 3.75 (s, 2H), 5.16 (s, 2H), 5.91 (s, 1H), 6.96 (br s, 4H), 7.22-7.51 (m, 3H).
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン リン酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine monophosphate
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン 塩酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine hydrochloride
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン クエン酸塩
1-{1-(Cyclopentylmethyl)-5-[(2,5-difluorobenzyl)oxy]-1H-pyrazol-3-yl}-N-
methylmethanamine monocitrate
1H-NMR (300 MHz, CD3OD) δ: 1.17-1.35 (m, 2H), 1.46-1.69 (m, 6H), 2.29-2.47 (m, 1H), 2.68 (s, 3H), 2.72 (d, J = 15.4 Hz, 2H), 2.81 (d, J = 15.4 Hz, 2H), 3.88 (d, J = 7.5 Hz, 2H), 4.06 (s, 2H), 5.22 (s, 2H), 5.90 (s, 1H), 7.09-7.32 (m, 3H).
N-メチル-1-{1-(3-メチルブチル)-5-[2,4,5-トリフルオロベンジル]オキシ]-1H-ピラゾール-3-イル}メタンアミン 塩酸塩
N-Methyl-1-{1-(3-methylbutyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}methanamine hydrochloride
N-メチル-1-{1-(3-メチルブチル)-5-[2,4,5-トリフルオロベンジル]オキシ]-1H-ピラゾール-3-イル}メタンアミン 塩酸塩
N-Methyl-1-{1-(3-methylbutyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}methanamine hydrochloride
参考例87に記載の化合物(Iccc)(5.00g,22mmol)および炭酸カリウム(4.58g,33mmol)のジメチルホルムアミド(22mL)混合溶液に室温で2,4,5-トリフルオロベンジルクロライド(4.79g,26.5mmol)を加え、反応混合物を室温で15時間攪拌した。塩をろ別し、ろ上物をジメチルホルムアミド(15mL)で洗浄後、ろ液を水(111mL)に40℃で15分間で滴下した。混合溶液を40℃で1時間攪拌後、2時間で6℃まで冷却して1時間攪拌後、析出物をろ取し、冷却したジメチルホルムアミドと水の混合溶液(1:3,10mL)、冷却した2-プロパノール(10mL)およびn-ヘキサン(20mL)の順に洗浄して、減圧乾燥することで化合物(IIccc)(6.56g,80%)を淡褐色粉末として得た。
水素化リチウムアルミニウム(768mg,20mmol)のテトラヒドロフラン(20mL)懸濁溶液に、化合物(5.00g,13.5mmol)のテトラヒドロフラン(12mL)溶液を内温15℃以下に保ちながら15分で滴下後、反応混合物をそのまま1時間攪拌した。水(0.77mL)、15%水酸化ナトリウム(0.77mL)および水(2.31mL)の順に加え、析出物をセライトろ過でろ別し、ろ液を減圧濃縮することで得た濃縮残渣(4.22g)にトルエン(15mL)を加えて減圧留去することを2回繰り返した。得られた濃縮残渣にトルエン(25mL)およびn-ヘキサン(45mL)を加えて、混合溶液を内温40℃で1時間攪拌し、析出物を確認後、2時間で氷温まで冷却して1時間攪拌後、析出物をろ取し、トルエンとn-ヘキサンの混合溶液(1:4,4mL)で洗浄後、減圧乾燥することで化合物(IIIccc)(3.76g,85%)を白色固体として得た。
化合物(IIIccc)(5.00g,15mmol)およびトリエチルアミン(2.54mL,18mmol)のテトラヒドロフラン(30mL)溶液に、内温15℃以下に保ちながらメタンスルホニルクロライド(1.3mL,16.8mmol)を15分間で滴下し、反応混合物をゆっくり室温まで昇温させながら2時間攪拌した。塩をろ別し、ろ上物をテトラヒドロフラン(5mL×2)で洗浄した。得られたろ液に、5-8℃で40%メチルアミン-メタノール溶液(40mL)を15分間で滴下し、反応混合物を1時間攪拌した。トルエン(40mL)および水(30mL)を加えて室温に昇温させて分液し、有機層を減圧濃縮して得られた濃縮残渣に2-プロパノール(15mL)を加えて減圧濃縮することを2回繰り返した。得られた濃縮残渣(5.54g)を2-プロパノール(15mL)に溶解させ、室温で36%濃塩酸(3.08g,30.5mmol)を加えて溶媒を減圧留去し、濃縮残渣に2-プロパノール(15mL)を加えて減圧濃縮することを2回繰り返した。得られた濃縮残渣(6.16g)に2-プロパノール(20mL)を加えて、内温50℃に加温して固形物の溶解を確認後、35℃まで冷却して析出物を確認した後に、内温35℃付近でn-ヘキサン(40mL)を1時間で滴下した。混合溶液を35℃で1時間攪拌後、2時間で内温5℃まで冷却してそのまま1時間攪拌後、析出物をろ取し、冷却した2-プロパノールとn-ヘキサンの混合溶液(1:4,5mL)で洗浄し、減圧乾燥することで標記化合物(IIIbbb)(3.22g,56%)を白色結晶性固体として得た。
N-メチル-1-{1-(3-メチルブチル)-5-[2,4,5-トリフルオロベンジル]オキシ]-1H-ピラゾール-3-イル}メタンアミン リン酸塩
N-Methyl-1-{1-(3-methylbutyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}methanamine monophosphate
1H-NMR (400 MHz, DMSO-d6) δ: 0.82 (6H, d, J = 6.3 Hz), 1.38-1.42 (1H, m), 1.49 (2H, dt, J = 7.1 Hz, J = 7.1 Hz), 2.37 (3H, s), 3.72 (2H, s), 3.83 (2H, t, J = 7.1 Hz), 5.14 (2H, s), 5.93 (1H, s), 6.13 (4H, br), 7.62-7.69 (1H, m), 7.74-7.78 (1H, m).
N-メチル-1-{1-(3-メチルブチル)-5-[2,4,5-トリフルオロベンジル]オキシ]-1H-ピラゾール-3-イル}メタンアミン クエン酸塩
N-Methyl-1-{1-(3-methylbutyl)-5-[(2,4,5-trifluorobenzyl)oxy]-1H-pyrazol-3-yl}methanamine monocitrate
1H-NMR (400 MHz, DMSO-d6) δ: 0.83 (6H, d, J = 6.4 Hz), 1.38-1.45 (1H, m), 1.51 (2H, dt, J = 6.8 Hz, J = 6.8 Hz), 2.44-2.56 (7H, m), 3.31 (4H, br), 3.87 (2H, t, J = 6.8 Hz), 3.96 (2H, s), 5.17 (2H, s), 5.89 (1H, s), 7.63-7.77 (2H, m), 10.62 (1H, br).
実験にはヒトセロトニントランスポーター(h-SERT)を発現させたCHO細胞(h-SERT/CHO)を用いた。細胞は5% CO2インキュベーター中で、10% FCS、500μg/mL Geneticinおよび100U/mL penicillin-100μg/mL streptmycinを含むF12(すべてSigma Aldrich)にて培養し、SERT buffer(120mmol/L NaClおよび5mmol/L KClを含む50mmol/L Tris-HCl (pH=7.4))にて剥離・採取した細胞をテフロン(登録商標)製ホモジナイザーでホモジナイズした後、遠心操作(50,000×g、30min、4℃)を行なった。沈渣は適量のSERT bufferに再懸濁し、使用まで-80℃で保存した。膜標品中のタンパク質量は、標準物質にウシ血清アルブミン(Sigma Aldrich)を用いて、Dye Reagent Concentrate(BIO-RAD)により定量した。
[3H]citalopram結合の測定はOwensらの方法(Owens M. J. et al., J. Pharm. Exp. Ther., 283, 1305-1322 (1997))に準じて行った。すなわち、SERT bufferで希釈した[3H]citalopram(GEヘルスケア製)(最終濃度約2nmol/L)50μL、h-SERT/CHO膜標品(蛋白量として40μg/well)149μL、およびジメチルスルホキシドに溶解した被験薬溶液1μLを加え全量を200μLとした。この液を室温で60分間反応させた後、0.05%ポリエチレンイミン水溶液でコーティングしたガラス繊維濾紙を用い速やかに低圧吸引ろ過した。ガラス繊維濾紙をSERT buffer 250μLで2回洗浄した後、液体シンチレーター(ACS-II、(Amersham製))もしくはエコシンチA(National Diagnostics社製)4mL入りのプラスチックバイアルに移し、濾紙上に残存する放射活性を液体シンチレーションカウンターを用いて測定した。[3H]citalopramの非特異的結合は1μmol/L clomipramine (Sigma Aldrich製)存在下での結合量とした。
IC50値の算出はHill解析(Hill A. V., J. Physiol., 40, 190-200 (1910))により、結合阻害定数(Ki)の算出は次式によって算出した:
結合阻害定数(Ki)=IC50/(1+S/Kd)
ただし、Sは添加した[3H]citalopram濃度を示す。また、Kd値は[3H]citalopramの結合解離定数であり、別途同じ細胞膜を用いて実施した飽和結合実験より算出された値を用いた。h-SERT結合阻害定数Ki値が小さいほど、ヒトセロトニン再取り込み阻害作用が強いことを意味する。
実験にはヒトセロトニン2C受容体(h-5-HT2C)を発現させたCHO細胞(h-5-HT2C/CHO)を用いた。細胞は5% CO2インキュベーター中で、1% FBS、400μg/mL Geneticin、100U/mL penicillin-100μg/mL streptomycin(ここまですべてSigma Aldrich製)および250μg/mL Zeosin(InvivoGen)を含むUltraCHO Lipuid(登録商標)(BioWhitakker製)にて培養し、50mmol/L Tris-HCl (pH=7.4)にて剥離・採取した細胞を、テフロン(登録商標)製ホモジナイザーでホモジナイズした後、遠心操作(48,000×g、25min、4℃)を行なった。沈渣は適量の50mmol/L Tris-HCl (pH=7.4)に再懸濁し、使用まで-80℃で保存した。膜標品中のタンパク質量は、標準物質にウシ血清アルブミン(Sigma Aldrich製)を用いて、Dye Reagent Concentrate(BIO-RAD製)により定量した。
50mmol/L Tris-HCl (pH=7.4)で希釈した[3H]mesulergine(GEヘルスケア製) (最終濃度約2nM)50μL、h-5-HT2C/CHO膜標品(蛋白量として20μg/well)149μL、およびジメチルスルホキシドに溶解した被験薬溶液1μLを加え全量を200μLとした。この液を37℃で30分間反応させた後、1%ウシ血清アルブミン水溶液でコーティングしたガラス繊維濾紙を用い速やかに低圧吸引ろ過した。ガラス繊維濾紙を50mmol/L Tris-HCl (pH=7.4) 250μLで2回洗浄した後、液体シンチレーター(ACS-II(Amersham製))もしくはエコシンチA(National Diagnostics社製)4mL入りのプラスチックバイアルに移し、濾紙上に残存する放射活性を液体シンチレーションカウンターを用いて測定した。[3H]mesulergineの非特異的結合は10μmol/L SB206553 (Sigma Aldrich製)存在下での結合量とした。
IC50値の算出はHill解析2)により、結合阻害定数(Ki)の算出は次式によって算出した:
結合阻害定数(Ki)=IC50/(1+S/Kd)
ただし、Sは添加した[3H]citalopram濃度を示す。また、Kd値は[3H]citalopramの結合解離定数であり、別途同じ細胞膜を用いて実施した飽和結合実験より算出された値を用いた。5-HT2C結合阻害定数Ki値が小さいほど、ヒトセロトニン2C受容体に対する親和性が高いことを意味する。
実験にはヒトセロトニン2C受容体(h-5-HT2C)を発現させたCHO細胞(h-5-HT2C/CHO)を用いた。細胞は5%CO2インキュベーター中で、1% FBS、400μg/mL Geneticin、100U/mL penicillin-100μg/mL streptomycin(ここまですべてSigma Aldrich製)および250μg/mL Zeosin(InvivoGen製)を含むUltraCHO Lipuid(登録商標)(BioWhitakker製)にて培養した。使用前日に、250μg/mL Trypsin溶液(ナカライテスク製)にて剥離・採取した細胞を、96 well flat clear bottom black polystyrene TC-treated microplates(Corning製)に40000cells/well/60μLで播種し、5%CO2インキュベーター中で16~24時間インキュベーションを行った。
5-HT2C受容体作動性の評価は、FLIPR Calcium 4 Assay kit(Molecular Devices)を用いて行った。すなわち、細胞を播種したplateにFLIPR Calcium 4 Assay kitのComponentAを、100mLのHHBP buffer(1×Hanks buffer,20mmol/L HEPES(いずれもGibco製)で溶解したものを40μL/well添加し、5%CO2インキュベーター中で1時間インキュベーションした。その後、FLIPR TETRA(登録商標)(Molecular Devices製)にセットし、HHBP buffer,2.5mmol/L Probenecid(Sigma製))で希釈した被験物質(添加後の濃度10μmol/L)を20μL/wellで添加し、蛍光を測定した。続いて、被験物質の拮抗作用を確認するため、5-HT溶液(Sigma製、最終濃度0.1nmol/L)を20μL/wellでさらに添加し、蛍光を測定した。
各被験物質の5-HT2C受容体作動性は、10μmol/Lの5-HTによる蛍光増強を100%としたときの増強率として算出した。また、5-HT2C受容体逆作動性は10μmol/LのSB206553(Sigma Aldrich製)による減弱率を-100%としたときの減弱率として算出した。被験物質の5-HT2C受容体作動性の数値が低いほど拮抗作用が高いことを示し、特に被験物質の5-HT2C受容体作動性の数値が0%以下である場合は5-HT2C受容体に対して逆作動作用を持つことを表す。
Claims (17)
- 下記式(1):
R3およびR4は互いに独立して水素原子またはC1-6アルキル基を表し、
R5は置換されていてもよいC4-7アルキル基または-(CR8R9)r-Eを表し、
R6、R7、R8およびR9は互いに独立して水素原子、フッ素原子または置換されていてもよいC1-6アルキル基を表し、
Aは置換されていてもよいC6-10アリール基または置換されていてもよい5~10員のヘテロアリール基を表し、
rは1、2、3または4を表し、
Eは置換されていてもよいC3-8シクロアルキル基、置換されていてもよいC4-8シクロアルケニル基、置換されていてもよい5~10員の飽和ヘテロ環基(当該飽和ヘテロ環基は、環の構成原子として、酸素原子および硫黄原子からなる群より独立して選択される1~3個のヘテロ原子を含む。)、置換されていてもよいC6-10アリール基または置換されていてもよい5~10員のヘテロアリール基を表し、
Lは酸素原子、硫黄原子または-NR10-を表し、
nは1、2または3を表し、
R10は水素原子、C1-6アルキル基またはC3-8シクロアルキル基を表し、
Xは水素原子、フッ素原子で置換されていてもよいC1-6アルキル基またはハロゲン原子を表す。]で表される化合物またはその薬学上許容される塩。 - R1、R2およびR3が互いに独立して水素原子またはメチル基であり、R4が水素原子である請求項1に記載の化合物またはその薬学上許容される塩。
- Aが置換されていてもよいC6-10アリール基である請求項1または2に記載の化合物またはその薬学上許容される塩。
- Xが水素原子である請求項1~3のいずれか一項に記載の化合物またはその薬学上許容される塩。
- Lが酸素原子である請求項1~4のいずれか一項に記載の化合物またはその薬学上許容される塩。
- nが1である請求項1~5のいずれか一項に記載の化合物またはその薬学上許容される塩。
- R1、R3およびR4が水素原子であり、R2がメチル基である請求項1~6のいずれか一項に記載の化合物またはその薬学上許容される塩。
- R6、R7、R8およびR9が水素原子である請求項1~7のいずれか一項に記載の化合物またはその薬学上許容される塩。
- Eが置換されていてもよいC3-8シクロアルキル基、置換されていてもよい5~10員の飽和ヘテロ環基(当該飽和ヘテロ環基は環の構成原子として1~3個の酸素原子を含む。)または置換されていてもよいフェニル基である請求項1~8のいずれか一項に記載の化合物またはその薬学上許容される塩。
- Eが置換されていてもよいC3-8シクロアルキル基である請求項1~9のいずれか一項に記載の化合物またはその薬学上許容される塩。
- rが1または2である請求項1~10のいずれか一項に記載の化合物またはその薬学上許容される塩。
- R5が置換されていてもよいC4-7アルキル基である請求項1~8のいずれか一項に記載の化合物またはその薬学上許容される塩。
- 式(1)で表される化合物が、以下の化合物のいずれかである請求項1に記載の化合物またはその薬学上許容される塩:
1-[5-(ベンジルオキシ)-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-クロロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(3-クロロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(2,4-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(4-フルオロ-2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(2-フルオロ-5-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-クロロ-5-フルオロベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(2,5-ジクロロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロヘキシルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-[5-(ベンジルオキシ)-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(3-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(3-クロロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(3-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(2,4-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-クロロ-4-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(4-フルオロ-2-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(2-フルオロ-5-メチルベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-クロロ-5-フルオロベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(2,5-ジクロロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-クロロ-5-メチルベンジル)オキシ]-1-(シクロペンチルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-[5-(ベンジルオキシ)-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;
1-{5-[(3-クロロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3,3-ジメチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-[5-(ベンジルオキシ)-1-(3-メチルブチル)-1H-ピラゾール-3-イル]-N-メチルメタンアミン;
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-メトキシ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロペンチルメチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(シクロヘキシルメチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルエタンアミン;
N-メチル-1-{1-(3-メチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン;
1-{1-(3,3-ジメチルブチル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(4-フルオロベンジル)-5-[(2-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-フルオロベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(4-フルオロベンジル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-フルオロベンジル)オキシ]-1-(4-メチルベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-メチルベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
N-メチル-1-{1-(4-メチルベンジル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}メタンアミン;
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(4-メトキシベンジル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(4-メトキシベンジル)-5-[(2,4,5-トリフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(シクロプロピルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(4-フルオロベンジル)オキシ]-1-(2-メチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2-メチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{1-(2,2-ジメチルプロピル)-5-[(4-フルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(2,2-ジメチルプロピル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(2-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-{5-[(4-フルオロベンジル)オキシ]-1-(3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
1-(5-[(4-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン;
1-(5-[(2,5-ジフルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン;
1-(5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-{[1-(トリフルオロメチル)シクロペンチル]メチル}-1H-ピラゾール-3-イル)-N-メチルメタンアミン;
(-)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
(+)-1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(テトラヒドロ-2H-ピラン-2-イルメチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;
(-)-1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルエタンアミン;
(+)-1-{1-(2-シクロペンチルエチル)-5-[(2,5-ジフルオロベンジル)オキシ]-1H-ピラゾール-3-イル}-N-メチルエタンアミン;
1-{5-[(2,5-ジフルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン;または、
1-{5-[(5-クロロ-2-フルオロベンジル)オキシ]-1-(3-フルオロ-3-メチルブチル)-1H-ピラゾール-3-イル}-N-メチルメタンアミン。 - 請求項1~13のいずれか一項に記載の化合物またはその薬学上許容される塩を有効成分として含有する医薬。
- うつ病または不安症の治療薬または再発予防薬である請求項14に記載の医薬。
- 請求項1~13のいずれか一項に記載の化合物またはその薬学上許容される塩を有効成分として含有するセロトニン再取り込み阻害剤。
- 請求項1~13のいずれか一項に記載の化合物またはその薬学上許容される塩及び医薬上許容される担体を含有する医薬組成物。
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11806858.4A EP2594559B1 (en) | 2010-07-15 | 2011-07-14 | Pyrazole compound |
US13/810,030 US8569353B2 (en) | 2010-07-15 | 2011-07-14 | Pyrazole compound |
JP2012524589A JP5722891B2 (ja) | 2010-07-15 | 2011-07-14 | ピラゾール化合物 |
ES11806858.4T ES2565193T3 (es) | 2010-07-15 | 2011-07-14 | Compuesto de pirazol |
CA2805219A CA2805219C (en) | 2010-07-15 | 2011-07-14 | Pyrazole compound |
AU2011277426A AU2011277426B2 (en) | 2010-07-15 | 2011-07-14 | Pyrazole compound |
KR1020137003175A KR101891838B1 (ko) | 2010-07-15 | 2011-07-14 | 피라졸 화합물 |
CN201180044504.8A CN103097357B (zh) | 2010-07-15 | 2011-07-14 | 吡唑化合物 |
HK13108359.3A HK1180971A1 (zh) | 2010-07-15 | 2013-07-16 | 吡唑化合物 |
US14/041,246 US8809383B2 (en) | 2010-07-15 | 2013-09-30 | Pyrazole compound |
US14/324,509 US9663472B2 (en) | 2010-07-15 | 2014-07-07 | Pyrazole compound |
US15/491,130 US10087146B2 (en) | 2010-07-15 | 2017-04-19 | Pyrazole compound |
US15/990,026 US10183913B2 (en) | 2010-07-15 | 2018-05-25 | Pyrazole compound |
US16/193,232 US10723703B2 (en) | 2010-07-15 | 2018-11-16 | Pyrazole compound |
US16/903,646 US11312688B2 (en) | 2010-07-15 | 2020-06-17 | Pyrazole compound |
Applications Claiming Priority (2)
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JP2010-160705 | 2010-07-15 | ||
JP2010160705 | 2010-07-15 |
Related Child Applications (2)
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---|---|---|---|
US13/810,030 A-371-Of-International US8569353B2 (en) | 2010-07-15 | 2011-07-14 | Pyrazole compound |
US14/041,246 Division US8809383B2 (en) | 2010-07-15 | 2013-09-30 | Pyrazole compound |
Publications (1)
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WO2012008528A1 true WO2012008528A1 (ja) | 2012-01-19 |
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PCT/JP2011/066091 WO2012008528A1 (ja) | 2010-07-15 | 2011-07-14 | ピラゾール化合物 |
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US (7) | US8569353B2 (ja) |
EP (1) | EP2594559B1 (ja) |
JP (1) | JP5722891B2 (ja) |
KR (1) | KR101891838B1 (ja) |
CN (1) | CN103097357B (ja) |
AU (1) | AU2011277426B2 (ja) |
CA (1) | CA2805219C (ja) |
ES (1) | ES2565193T3 (ja) |
HK (1) | HK1180971A1 (ja) |
TW (1) | TWI515182B (ja) |
WO (1) | WO2012008528A1 (ja) |
Cited By (1)
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WO2018131672A1 (ja) | 2017-01-13 | 2018-07-19 | 大日本住友製薬株式会社 | パーキンソン病に伴う非運動症状の治療薬 |
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EP3109237A1 (en) * | 2015-06-22 | 2016-12-28 | AnaMar AB | Novel 5-ht2 antagonists |
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CA2805219A1 (en) | 2012-01-19 |
KR20130091736A (ko) | 2013-08-19 |
EP2594559B1 (en) | 2016-02-24 |
US9663472B2 (en) | 2017-05-30 |
JP5722891B2 (ja) | 2015-05-27 |
US10723703B2 (en) | 2020-07-28 |
US20130116296A1 (en) | 2013-05-09 |
US20170217902A1 (en) | 2017-08-03 |
HK1180971A1 (zh) | 2013-11-01 |
US8569353B2 (en) | 2013-10-29 |
AU2011277426B2 (en) | 2015-04-23 |
US8809383B2 (en) | 2014-08-19 |
US10183913B2 (en) | 2019-01-22 |
JPWO2012008528A1 (ja) | 2013-09-09 |
CN103097357A (zh) | 2013-05-08 |
US20180273489A1 (en) | 2018-09-27 |
TWI515182B (zh) | 2016-01-01 |
ES2565193T3 (es) | 2016-04-01 |
US20190084938A1 (en) | 2019-03-21 |
US20140031406A1 (en) | 2014-01-30 |
US11312688B2 (en) | 2022-04-26 |
CN103097357B (zh) | 2015-01-28 |
US20200308119A1 (en) | 2020-10-01 |
CA2805219C (en) | 2018-07-03 |
EP2594559A1 (en) | 2013-05-22 |
KR101891838B1 (ko) | 2018-09-28 |
TW201217339A (en) | 2012-05-01 |
US10087146B2 (en) | 2018-10-02 |
AU2011277426A1 (en) | 2013-02-21 |
US20140315971A1 (en) | 2014-10-23 |
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