WO2010005087A1 - アミジン誘導体 - Google Patents
アミジン誘導体 Download PDFInfo
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- WO2010005087A1 WO2010005087A1 PCT/JP2009/062636 JP2009062636W WO2010005087A1 WO 2010005087 A1 WO2010005087 A1 WO 2010005087A1 JP 2009062636 W JP2009062636 W JP 2009062636W WO 2010005087 A1 WO2010005087 A1 WO 2010005087A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
- C07D217/02—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with only hydrogen atoms or radicals containing only carbon and hydrogen atoms, directly attached to carbon atoms of the nitrogen-containing ring; Alkylene-bis-isoquinolines
- C07D217/06—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with only hydrogen atoms or radicals containing only carbon and hydrogen atoms, directly attached to carbon atoms of the nitrogen-containing ring; Alkylene-bis-isoquinolines with the ring nitrogen atom acylated by carboxylic or carbonic acids, or with sulfur or nitrogen analogues thereof, e.g. carbamates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/47—Quinolines; Isoquinolines
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/04—Antihaemorrhagics; Procoagulants; Haemostatic agents; Antifibrinolytic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/08—Plasma substitutes; Perfusion solutions; Dialytics or haemodialytics; Drugs for electrolytic or acid-base disorders, e.g. hypovolemic shock
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
Definitions
- the present invention relates to a novel amidine derivative having an inhibitory activity on activated blood coagulation factor X (hereinafter sometimes abbreviated as FXa), a method for producing the same, a production intermediate thereof, and a pharmaceutical composition containing the amidine derivative. .
- FXa activated blood coagulation factor X
- the present invention also relates to the use of a low-molecular FXa inhibitor, particularly a low-molecular FXa inhibitor having a short blood half-life in an extracorporeal circuit.
- Blood extracorporeal circulation is a circulation circuit that retransmits blood into a living body through a device (for example, an artificial cardiopulmonary device, a blood purification device, etc.) that performs a certain treatment using an artificial blood flow path from the inside of the living body to the outside of the body. Is done by. Extracorporeal blood treatment may be required during blood purification therapy such as hemodialysis, hemofiltration, hemodiafiltration, and plasma exchange, and during cardiopulmonary bypass during open heart surgery.
- a typical example of the blood purification apparatus is a dialyzer.
- Blood extracorporeal circuit consisting of artificial blood flow path and various devices during extracorporeal blood circulation is a foreign substance, and blood coagulates when it comes in contact with it, so it is necessary to take measures to prevent blood coagulation in extracorporeal blood circulation circuit by some method is there.
- anti-blood coagulants such as unfractionated heparin and low molecular weight heparin have been used for the purpose of preventing blood coagulation in this extracorporeal circuit.
- heparin since unfractionated heparin has thrombin inhibitory activity in addition to FXa inhibitory activity, there is a known risk of bleeding tendency and it cannot be used for patients with high bleeding risk.
- low molecular weight heparin is a drug that chemically treats heparin to more selectively inhibit FXa against thrombin and has no thrombin inhibitory activity, thus reducing the risk of bleeding tendency, Used for patients with a tendency.
- low molecular weight heparin since low molecular weight heparin has a long elimination half-life, it is difficult to stop bleeding when bleeding symptoms are observed.
- nafamostat mesylate is used during some extracorporeal circulation such as hemodialysis. Nafamostat mesylate is also used for patients who already have bleeding lesions because of its short elimination half-life in vivo. However, nafamostat mesylate does not have strong inhibitory activity against FXa or thrombin and has a weak anticoagulant effect.
- a patient having an extracorporeal circuit has a blood coagulation problem only when the circuit is used, and is often different from a patient who must always prevent blood coagulation.
- a selective small molecule FXa inhibitor with a short blood half-life can be safely and conveniently used as an anti- (blood) coagulation agent (agent) for preventing blood coagulation for the extracorporeal circuit, and hemostasis after the end of the extracorporeal circulation
- blood coagulation agent agent
- An object of the present invention is to provide a novel amidine derivative or a pharmaceutically acceptable salt thereof.
- the object of the present invention is to provide a method for producing the amidine derivative or a pharmaceutically acceptable salt thereof, and a production intermediate.
- the present invention is also intended to provide an activated blood coagulation factor X inhibitor containing the amidine derivative or a pharmaceutically acceptable salt thereof.
- the present invention is also intended to provide an anti- (blood) coagulant (agent) containing the amidine derivative or a pharmaceutically acceptable salt thereof.
- the present invention also aims to provide a pharmaceutical composition containing the amidine derivative or a pharmaceutically acceptable salt thereof.
- the present invention is also intended to provide a novel anti- (blood) coagulant (agent) or pharmaceutical composition for a blood extracorporeal circuit.
- Another object of the present invention is to provide a novel method for preventing thrombus formation in a blood extracorporeal circuit.
- A′-COO-B ′ [where A ′ and B ′ represent organic groups.
- at least one of the compounds includes an amidino group or guanidino group structure has an excellent activated blood coagulation factor X inhibitory activity, has a short blood half-life, and has an anti-blood circulation circuit resistance. It was found useful as a (blood) coagulant (agent), and the present invention was completed.
- X represents an alkyl group having 1 to 6 carbon atoms or an amino group
- V 1 represents a hydrogen atom, a hydroxyl group, a halogen atom, an optionally substituted alkyl group having 1 to 10 carbon atoms, an optionally substituted alkoxy group having 1 to 10 carbon atoms, or a substituent.
- n represents an integer of 0 to 2
- R 1 represents a group represented by the following formula (2-1) or (2-2).
- m represents an integer of 0 to 2
- R 2 represents a group represented by the following formula (3).
- k represents an integer of 0 to 2
- Ring A represents an aryl group having 6 to 10 carbon atoms, a heteroaryl group having 1 to 10 carbon atoms, a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms, or a cycloalkyl group having 3 to 10 carbon atoms
- V 2 represents a hydrogen atom, a hydroxyl group, a halogen atom, an optionally substituted alkyl group having 1 to 10 carbon atoms, an optionally substituted alkoxy group having 1 to 10 carbon atoms, or a substituent.
- a nitro group, a carboxyl group, an optionally substituted carbamoyl group or an optionally substituted alkoxycarbonyl group having 2 to 10 carbon atoms, W may have an amidino group optionally substituted with an alkyl group having 1 to 6 carbon atoms, a guanidino group optionally substituted with an alkyl group having 1 to 6 carbon atoms, and an imino group at the 1-position.
- An alkyl group having 1 to 6 carbon atoms or a group represented by the following formula (4) is shown.
- Ring B represents a heteroaryl group having 1 to 10 carbon atoms or a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms
- Y 1 represents a single bond, —NH—, optionally substituted by an alkyl group having 1 to 6 carbon atoms, an oxygen atom, a sulfur atom, a methylene group, or —CO—
- Z is a hydrogen atom, a halogen atom, an amidino group optionally substituted with an alkyl group having 1 to 6 carbon atoms, a guanidino group optionally substituted with an alkyl group having 1 to 6 carbon atoms, or an imino group at the 1-position
- Ring A is a phenyl group, a pyridyl group, a thiophenyl group, a piperidyl group or a piperazinyl group
- V 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a carboxyl group, an optionally substituted alkoxy group having 1 to 6 carbon atoms, or an optionally substituted carbon.
- the amidine derivative according to the above [2] which is an alkoxycarbonyl group of 2 to 10, or a pharmaceutically acceptable salt thereof.
- W is a group represented by the formula (4)
- Ring B is a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms
- Y 1 is an oxygen atom, a sulfur atom or a methylene group
- Z is a hydrogen atom, a halogen atom, an amidino group, or an alkyl group having 1 to 6 carbon atoms which may have an imino group at the 1-position.
- Uru salt is a hydrogen atom, a halogen atom, an amidino group, or an alkyl group having 1 to 6 carbon atoms which may have an imino group at the 1-position.
- W is a group represented by the formula (4)
- Ring B is a pyridyl group
- V 3 represents a hydrogen atom or a group represented by the following formula (6),
- R 3 is a hydrogen atom, an optionally substituted alkyl group having 1 to 6 carbon atoms, an optionally substituted cycloalkyl group having 3 to 10 carbon atoms, a carboxyl group, or 2 to 7 alkoxycarbonyl group, an optionally substituted aryl group having 6 to 10 carbon atoms, an optionally substituted heteroaryl group, or a saturated nitrogen-containing aliphatic group having 2 to 8 carbon atoms
- Y 2 represents an oxygen atom, —CO—, —CO 2 —, —SO 2 —, —CONH— or —CH ⁇ CH—
- Y 3 represents — (CH 2 ) i — or — (CH 2 ) i ′ —CUU ′ — (CH 2 ) i ′′ — (wherein U and U ′ are the same or different and each represents a hydrogen atom or a carbon number, 1 to 6 alkyl groups, i, i
- V 3 is a group represented by the formula (6)
- Ring A is a phenyl group, a pyridyl group, a thiophenyl group, a piperidyl group or a piperazinyl group
- V 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a carboxyl group, an optionally substituted alkoxy group having 1 to 6 carbon atoms, or an optionally substituted carbon.
- the amidine derivative according to the above [6] which is an alkoxycarbonyl group of 2 to 10, or a pharmaceutically acceptable salt thereof.
- V 3 is a group represented by the formula (6)
- W is a group represented by the formula (4)
- Ring B is a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms
- Y 1 is an oxygen atom, a sulfur atom or a methylene group
- Z is a hydrogen atom, an amidino group, or an alkyl group having 1 to 6 carbon atoms which may have an imino group at the 1-position.
- V 3 is a group represented by the formula (6)
- W is a group represented by the formula (4)
- Ring B is a pyridyl group
- An activated blood coagulation factor X inhibitor comprising the amidine derivative according to any one of [1] to [9] above or a pharmaceutically acceptable salt thereof.
- the pharmaceutical composition according to the above [11] which is an anticoagulant.
- the present invention also provides an activated blood coagulation factor X inhibitor, an anti- (blood) coagulant (agent), or a pharmaceutical composition containing the amidine derivative or a pharmaceutically acceptable salt thereof.
- the present invention also provides an anti- (blood) coagulant (agent) for an extracorporeal blood circuit containing a low-molecular FXa inhibitor as an active ingredient.
- the present invention also provides a method for preventing thrombus formation in a blood extracorporeal circuit including incorporating a low-molecular FXa inhibitor into a component of the blood extracorporeal circuit.
- the “aryl group” represents a monocyclic to bicyclic aromatic hydrocarbon ring group which may have a substituent, or a phenyl group having a 5- to 8-membered cycloalkyl ring condensed thereto.
- Examples of the “aryl group” include a phenyl group, a naphthyl group, an indanyl group, and a tetrahydronaphthalenyl group.
- it has 6 to 14 carbon atoms, preferably 6 to 10 carbon atoms, more preferably a phenyl group or naphthyl group, and particularly preferably a phenyl group.
- aryl group having 6 to 14 carbon atoms refers to those having 6 to 14 carbon atoms among the above aryl groups
- aryl group having 6 to 10 carbon atoms refers to those having the carbon number among the above aryl groups. It means 6-10.
- heteroaryl group is a 5- to 10-membered monocyclic to bicyclic aromatic heterocyclic group containing 1 to 6 heteroatoms selected from oxygen, sulfur and nitrogen atoms as ring atoms. Indicates.
- heteroaryl group having 1 to 10 carbon atoms refers to the above-mentioned “heteroaryl group” having 1 to 10 carbon atoms
- heteroaryl group having 1 to 9 carbon atoms refers to the above heteroaryl group. Of these, those having 1 to 9 carbon atoms.
- nitrogen-containing heteroaryl group having 1 to 10 carbon atoms refers to the above-mentioned “heteroaryl group having 1 to 10 carbon atoms” having at least one nitrogen atom as a ring atom.
- a “nitrogen-containing aliphatic heterocyclic group” (that is, a nitrogen-containing non-aromatic heterocyclic group) has at least one nitrogen atom as a ring atom, and further has one or more oxygen atoms or sulfur atoms.
- a preferable 4- to 10-membered monocyclic to bicyclic saturated or partially unsaturated aliphatic heterocyclic group is shown.
- nitrogen-containing aliphatic heterocyclic group examples include pyrrolidinyl group, pyrazolidinyl group, imidazolidinyl group, pyrrolinyl group, pyrazolinyl group, imidazolyl group, thiazolidinyl group, piperidyl group, piperidino group, piperazinyl group, quinuclidinyl group, morpholino group , Morpholinyl group, thiomorpholino group, thiomorpholinyl group, homopiperidyl group, homopiperazinyl group, indolinyl group, isoindolinyl group, tetrahydroquinolinyl group, tetrahydroisoquinolinyl group, etc., preferably pyrrolidinyl group, piperidyl group, A piperazinyl group, a tetrahydroquinolinyl group, a tetrahydroisoquinolinyl
- the “nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms” refers to those having 2 to 8 carbon atoms among the above “nitrogen-containing aliphatic heterocyclic groups”.
- the “nitrogen-containing aliphatic heterocyclic group having 1 to 9 carbon atoms” refers to those having 1 to 9 carbon atoms among the above-mentioned “nitrogen-containing aliphatic heterocyclic groups”.
- the “saturated nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms” refers to a saturated one of the above “nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms”.
- Cycloalkyl group refers to an aliphatic hydrocarbon ring group, which may contain a double bond in the ring.
- the “cycloalkyl group” preferably has 3 to 10 carbon atoms, and examples thereof include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclohexenyl group, a cyclopentenyl group, and the like. Particularly preferred is a cyclohexyl group.
- the “cycloalkyl group having 3 to 10 carbon atoms” refers to those having 3 to 10 carbon atoms among the above “cycloalkyl groups”.
- the “cycloalkyl group having 3 to 8 carbon atoms” refers to the above “cycloalkyl group” having 3 to 8 carbon atoms.
- Alkyl group or “alkyl group part” in “alkylthio group”, “alkylamino group”, “alkoxy group”, “alkoxycarbonyl group”, etc. is a linear, branched, cyclic or partially cyclic fatty acid Group hydrocarbon group, for example, methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, sec-butyl group, tert-butyl group, cyclopropylmethyl group, cyclobutyl group, pentyl group, isopentyl group , Neopentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, 1,1-dimethyl-propyl group, cyclopropyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group,
- alkyl group having 1 to 10 carbon atoms is one having 1 to 10 carbon atoms in the above “alkyl group”
- the “alkyl group having 1 to 6 carbon atoms” is one of the above “alkyl groups”. Means one having 1 to 6 carbon atoms.
- Alkylthio group having 1 to 10 carbon atoms means that the alkyl group portion has 1 to 10 carbon atoms in the above “alkyl group portion”, specifically, for example, methylthio group, ethylthio group, Propylthio, isopropylthio, butylthio, isobutylthio, sec-butylthio, tert-butylthio, cyclopropylmethylthio, pentylthio, isopentylthio, neopentylthio, hexylthio, heptylthio, octylthio And nonylthio group, decylthio group, 1,1-dimethyl-propylthio group, cyclopropylthio group, cyclobutylthio group, cyclopentylthio group, cyclohexylthio group, cycloheptylthio group, cyclooc
- Alkylamino group having 1 to 10 carbon atoms refers to an amino group mono- or di-substituted with 1 to 10 carbon atoms in the above “alkyl group moiety”, and specifically includes a methylamino group, Ethylamino, propylamino, isopropylamino, butylamino, isobutylamino, sec-butylamino, tert-butylamino, cyclopropylmethylamino, pentylamino, isopentylamino, neopentylamino Group, hexylamino group, heptylamino group, octylamino group, nonylamino group, decylamino group, (1,1-dimethyl-propyl) amino group, cyclopropylamino group, cyclobutylamino group, cyclopentylamino group, cyclohexylamino group, Mono (
- Amino group dimethylamino group, diethylamino group, dipropylamino group, diisopropylamino group, dibutylamino group, diisobutylamino group, di-sec-butylamino group, di-tert-butylamino group, di (cyclopropylmethyl) amino Group, dipentylamino group, diisopentylamino group, dineopentylamino group, dihexylamino group, N-methyl-N-ethylamino group, N-methyl-N-propylamino group, N-methyl-N-isopropylamino Group, N-methyl-N-butylamino group, N-methyl-N-isobutylamino group, N-methyl-N-sec-butylamino group, N-methyl-N-tert-butylamino group, N-ethyl- N-propylamino group, N-ethyl-N-is
- Alkoxy group having 1 to 10 carbon atoms means an alkyl group portion having 1 to 10 carbon atoms in the above “alkyl group portion”, specifically, a methoxy group, an ethoxy group, a propoxy group. , Isopropoxy group, butoxy group, isobutoxy group, sec-butoxy group, tert-butoxy group, cyclopropylmethoxy group, pentyloxy group, isopentyloxy group, neopentyloxy group, hexyloxy group, heptyloxy group, octyloxy Group, nonyloxy group, decyloxy group, 1,1-dimethyl-propoxy group, cyclopropoxy group, cyclobutoxy group, cyclopentyloxy group, cyclohexyloxy group, cycloheptyloxy group, cyclooctyloxy group and the like. “Alkoxy group having 1 to 6 carbon atoms” refers to
- Alkoxycarbonyl group having 2 to 10 carbon atoms means that the alkyl group portion of the above “alkyl group portion” has 1 to 9 carbon atoms, specifically, methoxycarbonyl group, ethoxycarbonyl group , Propoxycarbonyl group, isopropoxycarbonyl group, butoxycarbonyl group, isobutoxycarbonyl group, sec-butoxycarbonyl group, tert-butoxycarbonyl group, cyclopropylmethoxycarbonyl group, pentyloxycarbonyl group, isopentyloxycarbonyl group, neopentyl Oxycarbonyl group, hexyloxycarbonyl group, heptyloxycarbonyl group, octyloxycarbonyl group, nonyloxycarbonyl group, (1,1-dimethyl-propoxy) carbonyl group, cyclopropoxycarbonyl group, cyclobutoxycarbo Group, cyclopentyloxy group,
- halogen atom examples include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom, preferably a fluorine atom and a chlorine atom.
- Alkylamino group or “carbamoyl group substituted with an alkyl group” (when the substituent is an alkyl group in “optionally substituted carbamoyl group”), “(C 1-6
- the “alkylamino moiety” as a component such as “) an amidino group substituted with an alkyl group” or “a guanidino group substituted with an alkyl group (having 1 to 6 carbon atoms)” includes a monoalkylamino group and a dialkylamino group Is also included.
- the two alkyl groups may be the same as or different from each other, and are bonded to each other to form a ring (for example, a nitrogen-containing heterocyclic ring corresponding to the above “nitrogen-containing heterocyclic group”, etc. (eg, pyrrolidine ring, pyrroline ring). )) May be formed.
- a nitrogen-containing heterocyclic ring corresponding to the above “nitrogen-containing heterocyclic group”, etc. (eg, pyrrolidine ring, pyrroline ring). )
- acyl group moiety as a component such as “acyloxy group” and “acylamino group” include formyl group, alkylcarbonyl group having 2 to 10 carbon atoms (for example, acetyl group, ethylcarbonyl group, propylcarbonyl group, isopropylcarbonyl group).
- acyl group having 1 to 11 carbon atoms such as a carbonyl group, a cyclooctylcarbonyl group, and the like, and an arylcarbonyl group having 2 to 11 carbon atoms (for example, a be
- a substituent preferably (1) a halogen atom, (2) hydroxyl group, (3) an amino group, (4) an alkyl group having 1 to 6 carbon atoms, (5) an alkenyl group having 2 to 6 carbon atoms, (6) an alkynyl group having 2 to 6 carbon atoms, (7) an alkoxy group having 1 to 6 carbon atoms which may be substituted with phenyl, (8) an alkylamino group having 1 to 6 carbon atoms, (9) a cyano group, (10) a guanidino group, (11) a carboxyl group, (12) a carbamoyl group, (13) an acyloxy group having 1 to 6 carbon atoms, (14) an acylamino group having 1 to 6 carbon atoms, (15) a cycloalkyl group having 3 to 8 carbon atoms, (16) an alkylthio group having 1 to 6 carbon atoms, (17) an alkylsulfonamido group having 1 to 6 carbon carbon
- the substituent is more preferably an alkoxy group having 1 to 6 carbon atoms (preferably a methoxy group) which may be substituted with phenyl. Particularly preferred are a methoxy group and a benzyloxy group. There is no particular limitation on the number and position of the substituents.
- the compound represented by the formula (1) or (5) of the present invention includes geometric isomers, tautomers, and optics. It includes a mixture of various stereoisomers such as isomers, isolated isomers, stable isotopes, and radioisotopes.
- X is preferably a methyl group or an amino group, and particularly preferably an amino group.
- V 1 is preferably a hydrogen atom, a lower alkoxy group (eg, an alkoxy group having 1 to 4 carbon atoms) or a halogen atom, and particularly preferably a hydrogen atom.
- n is preferably 0-2.
- m is preferably 0 or 1.
- k is preferably 0 or 1.
- R 1 is a group represented by the formula (2-1)
- k is preferably 0, and when R 1 is a group represented by the formula (2-2), k is preferably 1.
- ring A a phenyl group, a pyridyl group, a thiophenyl group, a naphthyl group, a thienyl group, a piperidyl group, and a piperazinyl group are preferable, and a phenyl group, a naphthyl group, a thienyl group, and a piperidyl group are more preferable, and among them, a phenyl group and a piperidyl group are preferable.
- ring A is preferably a phenyl group, a pyridyl group, a thiophenyl group, a piperidyl group, or a piperazinyl group.
- V 2 is preferably a hydrogen atom, a hydroxyl group, a halogen atom, an optionally substituted alkyl group having 1 to 6 carbon atoms, a carboxyl group, or an optionally substituted substituent having 1 to 6 carbon atoms.
- Methyl group (preferably hydroxymethyl group, carboxymethyl group, methoxymethyl group, benzyloxymethyl group), fluorine atom, chlorine atom, hydroxyl group, methoxy group, carboxyl group, methoxycarbonyl group, ethoxycarbonyl group, carbamoyl group And more preferably a hydrogen atom or an optionally substituted methyl group (preferably a methoxymethyl group, benzyloxymethyl).
- V 2 has a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a carboxyl group, an optionally substituted alkoxy group having 1 to 6 carbon atoms, or a substituent.
- W is preferably an amidino group, a guanidino group, a 1-iminoethyl group, an imino (pyrrolidin-1-yl) methyl group, an imino (pyrrolin-1-yl) methyl group, or a group represented by the formula (4). More preferably, it is group represented by Formula (4).
- Ring B is preferably a heteroaryl group having 1 to 9 carbon atoms or a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms, more preferably a pyrrolidinyl group, piperidyl group, homopiperidyl group, or pyridyl group. More preferred are a piperidyl group, a pyridyl group, and a pyrrolidinyl group. Particularly preferred is a pyridyl group. In another embodiment, ring B is preferably a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms.
- Y 1 is preferably a single bond, —CO—, an oxygen atom, a sulfur atom, or a methylene group, and particularly preferably a single bond, —CO—, or an oxygen atom.
- Z is preferably a hydrogen atom, a halogen atom, an amidino group, or an alkyl group having 1 to 6 carbon atoms which may have an imino group at the 1-position, more preferably a hydrogen atom, a fluorine atom, a chlorine atom,
- An amidino group is an alkyl group having 1 to 6 carbon atoms which may have an imino group at the 1-position (preferably a 1-iminoethyl group).
- Particularly preferred are a hydrogen atom, an amidino group, and an alkyl group having 1 to 6 carbon atoms which may have an imino group at the 1-position (preferably a 1-iminoethyl group).
- V 3 is preferably a group represented by the formula (6).
- R 3 is preferably a cyclohexyl group or a phenyl group, and more preferably a cyclohexyl group.
- Y 2 is preferably —CONH—.
- Y 3 is preferably — (CH 2 ) i — or — (CH 2 ) i ′ —CUU ′ — (CH 2 ) i ′′ — (where i is preferably 0 or 1, and i ′ is preferably Is 0 or 1, i is preferably 0, U is preferably a hydrogen atom, and U ′ is preferably a methyl group), more preferably — (CH 2 ) i — ( Here, i is preferably 0).
- j is preferably 1.
- R 1 , V 1 , X and n in the formula are as defined in the formula (1).
- preferred embodiments of R 1, V 1, X and n are the same as the preferred embodiment described above for R 1, V 1, X and n in the formula (1).
- compounds having FXa inhibitory activity with a molecular weight of 1000 or less include, for example, International Publication WO99 / 52895, International Publication WO99 / 10316, International Publication WO2000 / 59876, International Publication WO2002 / 28827, and International Publication. Examples thereof include compounds shown in WO01 / 74791 pamphlet, international publication WO96 / 16940 pamphlet, international publication WO2002 / 42270 pamphlet, and international publication WO2006 / 83003 pamphlet.
- low molecular FXa inhibitor those that disappear rapidly from the blood are preferable.
- the disappearance from the blood is rapid means that the elimination half-life in the body or the half-life in the plasma stability test shown in Test Example 4 described later is 10 minutes or less, preferably 5 minutes. It means the following.
- FXa selective ones are preferable, and more specifically, in the inhibitory activity evaluation system shown in Test Examples 1 and 2 described later, pIC 50 (FXa) and pIC 50 Those having a large difference in (IIa) are preferred.
- Blood extracorporeal circulation is an artificial blood circulation that passes through a blood circuit constructed outside the living body.
- the “blood extracorporeal circuit” is a blood circuit in extracorporeal blood circulation, for example, a blood circuit formed by connecting a living body and an artificial organ when using the artificial organ. More specifically, for example, those used at the time of cardiopulmonary bypass and hemodialysis are mentioned, and in the present invention, a blood extracorporeal circuit is particularly preferred at the time of hemodialysis.
- Prot represents an amino-protecting group such as tert-butoxycarbonyl group, 1-methylcyclobutoxycarbonyl group, etc., and other symbols are as defined above.
- tert-butyl 7-hydroxy-3,4-dihydroisoquinoline-2 (1H) -carboxylate which has a hydroxyl group and is protected with a suitable protecting group (Prot) that is removed on the nitrogen under acidic conditions.
- the nitrogen-containing heterocycle and the corresponding carboxylic acid derivative are mixed with triethylamine, 4-dimethylaminopyridine (hereinafter, referred to as “neutral”) in a solvent such as dichloromethane, N, N′-dimethylformamide (hereinafter “DMF”), pyridine or the like.
- a solvent such as dichloromethane, N, N′-dimethylformamide (hereinafter “DMF”), pyridine or the like.
- DCC N, N′-dicyclohexylcarbodiimide
- HATU 1-hydroxy-7-azabenzotriazole
- HOAt 1-hydroxy-7-azabenzotriazole
- tert-butyl 7-hydroxy-3,4-dihydroisoquinoline-2 (1H) -carboxylate which has a hydroxyl group and is protected with a suitable protecting group (Prot) that is removed on the nitrogen under acidic conditions.
- the intermediate (8) can be obtained by dissolving the nitrogen-containing heterocycle in a solvent such as dichloromethane and reacting with trifluoromethanesulfonic anhydride in the presence of an organic base such as 2,6-lutidine. .
- the intermediate (8) thus obtained is dissolved in a solvent such as DMF, mixed with an alcohol such as ethanol, a catalyst such as tetrakis (triphenylphosphine) palladium (0), and an organic base such as diisopropylethylamine as necessary.
- the ester derivative (9) can be obtained by heating reaction in the presence of carbon monoxide gas in the presence.
- the alcohol derivative (10) can be obtained by dissolving the ester derivative (9) thus obtained in a solvent such as tetrahydrofuran (hereinafter referred to as THF) and reacting with lithium aluminum hydride.
- THF tetrahydrofuran
- R 1 is a group represented by the formula (2-1), the ring A is a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms, and W is the formula (4)
- ring B is a nitrogen-containing heteroaryl group having 1 to 10 carbon atoms or a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms and Y 1 is a single bond
- the carboxylic acid derivative (12) as an intermediate can be obtained by the method shown.
- X ′ represents a leaving group such as a halogen atom
- ring A ′ represents a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms
- ring B ′ represents a nitrogen-containing heterocycle having 1 to 10 carbon atoms
- a nitrogen-containing heterocyclic compound having a leaving group such as a halogen atom such as chloropyridine in the presence of an organic base such as triethylamine by dissolving a compound having a nitrogen-containing aliphatic heterocyclic ring such as ethyl isonipecotate in a solvent such as xylene.
- Intermediate (11) can be obtained by adding and heating.
- a carboxylic acid derivative (12) can be obtained by hydrolyzing the intermediate (11) thus obtained under acidic conditions.
- R 1 is a group represented by Formula (2-1)
- Ring A is an aryl group having 6 to 10 carbon atoms or a heteroaryl group having 1 to 10 carbon atoms
- W is A group represented by formula (4), wherein ring B is a nitrogen-containing heteroaryl group having 1 to 10 carbon atoms or a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms, and Y 1 is an oxygen atom
- Z is a guanidino group optionally substituted with an alkyl group having 1 to 6 carbon atoms, or an alkyl group having 1 to 6 carbon atoms that may have an imino group at the 1-position
- the carboxylic acid derivative (14) as an intermediate can be obtained by the method.
- Prot ′ represents an amino-protecting group such as benzyloxycarbonyl group, p-nitrobenzylcarbonyl group
- R 4 represents an alkyl group
- ring A ′′ represents an aryl group having 6 to 10 carbon atoms. Or a heteroaryl group having 1 to 10 carbon atoms, and the other symbols are as defined above.
- a nitrogen-containing aliphatic heterocycle protected with an appropriate protecting group (Prot ′) removed by catalytic reduction of palladium with palladium is dissolved in a solvent such as THF and reacted with diethylazodicarboxylic acid (DEAD) and triphenylphosphine.
- a solvent such as THF
- DEAD diethylazodicarboxylic acid
- triphenylphosphine triphenylphosphine
- Carboxylic acid derivative (15) can be obtained by hydrolyzing ester derivative (9) under basic conditions.
- R 1 is a group represented by the formula (2-2), the ring A is a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms, and W is the formula (4)
- ring B is a nitrogen-containing heteroaryl group having 1 to 10 carbon atoms or a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms and Y 1 is a single bond
- the alcohol derivative (17) as an intermediate can be synthesized by the method shown.
- the alcohol derivative (17) can be obtained by dissolving the ester derivative (11) in a solvent such as THF and reacting with lithium aluminum hydride.
- R 1 is a group represented by the formula (2-2), and the ring A is an aryl group having 6 to 10 carbon atoms or a heteroaryl group having 1 to 10 carbon atoms, W is a group represented by the formula (4), ring B is a nitrogen-containing heteroaryl group having 1 to 10 carbon atoms, or a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms, and Y 1 is oxygen
- the alcohol derivative (18) as an intermediate can be obtained by the following method.
- the alcohol derivative (18) can be obtained by dissolving the ester derivative (13) in a solvent such as THF and reacting with lithium aluminum hydride.
- an amidine derivative (20) in which X is an alkyl group having 1 to 6 carbon atoms and a guanidine derivative (21) in which X is an amino group can be synthesized by the following method.
- R 5 represents an alkyl group having 1 to 6 carbon atoms, and other symbols are as defined above].
- an acid such as trifluoroacetic acid or hydrochloric acid / 1,4-dioxane solution
- the intermediate (19) from which the protecting group on nitrogen has been removed can be obtained.
- the intermediate (19) thus obtained is dissolved in a solvent such as ethanol and, if necessary, by reacting the corresponding imidate such as ethylacetimidate in the presence of an organic base such as diisopropylethylamine, 20) can be obtained.
- guanidine derivative (21) can be obtained by allowing 1H-pyrazole-1-carboxamidine to act on intermediate (19), if necessary, in the presence of an organic base such as diisopropylethylamine.
- R 1 is a group represented by formula (2-1), X is an amino group, and ring A is an aryl group having 6 to 10 carbon atoms or heteroaryl having 1 to 10 carbon atoms W is a group represented by formula (4), ring B is a nitrogen-containing heteroaryl group having 1 to 10 carbon atoms, or a nitrogen-containing aliphatic heterocyclic group having 2 to 8 carbon atoms,
- Z is an alkyl group having 1 to 6 carbon atoms having an imino group at the 1-position and Y 1 is an oxygen atom
- the guanidine derivative (23) can be synthesized by the following method.
- the intermediate (21 ′) is dissolved in an alcohol such as ethanol, a solvent such as acetic acid, and the protective group of ring B is removed by catalytic reduction with a palladium catalyst such as palladium / carbon under a hydrogen atmosphere, Intermediate (22) is obtained.
- the intermediate (22) thus obtained is dissolved in a solvent such as ethanol and DMF, and, if necessary, in the presence of an organic base such as diisopropylethylamine, a corresponding imidate such as ethyl acetoimidate is allowed to act on the guanidine.
- a derivative (23) can be obtained.
- R 1 is a group represented by formula (2-2)
- X is an amino group
- ring A is an aryl group having 6 to 10 carbon atoms
- 1 to 10 is a heteroaryl group
- W is a group represented by the formula (4)
- ring B is a nitrogen-containing heteroaryl group having 1 to 10 carbon atoms or a nitrogen-containing aliphatic heterocyclic ring having 2 to 8 carbon atoms
- the guanidine derivative (25) in which Z is an alkyl group having 1 to 6 carbon atoms having an imino group at the 1-position and Y 1 is an oxygen atom can be obtained by the following method.
- R 1 is a group represented by formula (2-1)
- V 3 is a group represented by formula (6)
- R 3 may have a substituent.
- Y 2 is —CONH—
- Y 3 is — (CH 2 ) i —.
- Embedded image Compound (34) in which k is 1, j is 1 and i is 0 can be synthesized by the method shown below.
- Prot ′′ represents a protecting group for a hydroxyl group such as a benzyl group or a p-methoxybenzyl group
- X 2 represents a leaving group such as a halogen atom
- each R independently has a substituent.
- 3-nitrobenzonitrile having a leaving group such as a halogen atom at the 4-position is used by using glycine tert-butyl ester in the presence of an organic base such as triethylamine using an alcohol such as ethanol as a solvent and an intermediate (26 ) Can be obtained.
- An intermediate (27) obtained by reducing the nitro group of this intermediate (26) to an amino group by catalytic reduction with a palladium catalyst such as palladium carbon under a hydrogen atmosphere is dissolved in a solvent such as DMF, and triethylamine is obtained.
- Protective group capable of removing hydroxyl groups such as 2-benzyloxyacetic acid by catalytic reduction with a palladium catalyst in a hydrogen atmosphere using a condensing agent such as HATU or HOAt as necessary in the presence of an organic base such as
- the intermediate (28) can be obtained by allowing a hydroxyacetic acid derivative protected with (Prot ′′) to act.
- the thus obtained (28) is heated under acidic conditions such as acetic acid, methanesulfonic acid, and p-toluenesulfonic acid, and treated with an acid such as trifluoroacetic acid as necessary, whereby a benzimidazole intermediate is obtained.
- (29) can be obtained.
- the intermediate (30) thus obtained is dissolved in a solvent such as DMF and reacted with a corresponding alkylamine and a condensing agent such as HATU or HOAt in the presence of an organic base such as triethylamine. Can be obtained.
- imidate (31) By dissolving (30) thus obtained in an alcohol such as methanol or ethanol as a solvent and reacting with an acid such as hydrochloric acid / 1,4-dioxane solution, or blowing in hydrogen chloride gas as an acid, for example, imidate (31) can be obtained.
- the amidine intermediate (32) can be obtained by using the imidate (31) thus obtained by using an alcohol such as ethanol as the solvent and an ammonium salt such as ammonium carbonate, or by blowing ammonia gas.
- the thus obtained (32) is dissolved in an alcohol such as ethanol as a solvent, and the protective group is removed by catalytic reduction with a palladium catalyst such as palladium / carbon under a hydrogen atmosphere to obtain the alcohol intermediate (33).
- a palladium catalyst such as palladium / carbon under a hydrogen atmosphere
- the compound (33) thus obtained is dissolved in a solvent such as DMF or dichloromethane, and the corresponding carboxylic acid and condensing agent are allowed to act in the presence of a base, or the corresponding carboxylic acid is acid chloride with phosphorus oxychloride or the like.
- the compound (34) can be obtained by allowing the alcohol intermediate (33) to act thereon.
- the salt may be any pharmaceutically acceptable, for example, an acid such as a carboxyl group in the formula.
- an acid such as a carboxyl group in the formula.
- ammonium salts salts with alkali metals such as sodium and potassium, salts with alkaline earth metals such as calcium and magnesium, aluminum salts, zinc salts, triethylamine, ethanolamine , Salts with organic amines such as morpholine, piperidine and dicyclohexylamine, and salts with basic amino acids such as arginine and lysine.
- salts with inorganic acids such as hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, hydrobromic acid, acetic acid, trifluoroacetic acid, citric acid, benzoic acid
- Organic carboxylic acids such as acid, maleic acid, fumaric acid, tartaric acid, succinic acid, tannic acid, butyric acid, hybenzic acid, pamoic acid, enanthic acid, decanoic acid, teocric acid, salicylic acid, lactic acid, oxalic acid, mandelic acid, malic acid
- organic sulfonic acids such as methanesulfonic acid, benzenesulfonic acid, and p-toluenesulfonic acid.
- the compound of the formula (1) or (5) and a necessary acid or base are mixed in an appropriate amount ratio in a solvent or a dispersant, or a cation is obtained from other salt forms. It can also be obtained by exchange or anion exchange.
- the compounds of the present invention also include solvates of the compounds represented by formulas (1) and (5), such as hydrates and alcohol adducts.
- the compound of the present invention can be converted into a prodrug.
- the prodrug in the present invention refers to a compound that is converted in the body to produce the compound of the present invention.
- the active main body contains a carboxyl group or a phosphate group
- their esters and amides can be mentioned.
- the active main body contains an amino group, its amide, carbamate and the like can be mentioned.
- the active main body contains a hydroxyl group, its ester, carbonate, carbamate and the like can be mentioned.
- the compound of the present invention is converted into a prodrug, it may be bound to an amino acid or a saccharide.
- the compounds (1) and (5) which are the compounds of the present invention, or a pharmaceutically acceptable salt thereof may be prepared and administered as it is, or as a pharmaceutical composition according to a conventional method using an ordinary pharmaceutical aid. it can.
- a pharmaceutical composition examples include tablets, powders, injections, lyophilized injections, or pills, granules, capsules, suppositories, solutions, dragees, devoted drugs, syrups, Suspensions, emulsions, lozenges, sublinguals, patches, buccal disintegrants (tablets), inhalants, enemas, ointments, patches, tapes, eye drops and the like.
- the compound or pharmaceutical composition of the present invention is administered into a blood extracorporeal circuit or to a patient.
- Preferred administration methods include direct administration into the blood extracorporeal circuit, intravenous administration, intramuscular administration, subcutaneous administration, and in some cases oral administration, rectal administration, intranasal administration, sublingual administration Is also possible.
- direct administration into the blood extracorporeal circuit it is preferable to administer the blood at a site as close to the body as possible of the circuit for circulating blood outside the body. Is available.
- the administration target is not particularly limited, and examples thereof include mammals (eg, mouse, rat, hamster, rabbit, cat, dog, pig, cow, sheep, horse, monkey, human, etc.).
- mammals eg, mouse, rat, hamster, rabbit, cat, dog, pig, cow, sheep, horse, monkey, human, etc.
- the compound of the present invention or a pharmaceutically acceptable salt thereof or a pharmaceutical composition containing them is provided as an anti- (blood) coagulant (agent) for hemodialysis, and dissolved or dispersed in a dialysate at the time of use.
- the FXa inhibitor composition used in the dialyzer can be provided not only as it is, but also in the form of a dialysate or dialysate concentrate containing the FXa inhibitor.
- the dialysate concentrate include a powder formulation for an artificial kidney, and can be prepared, for example, by concentrating a dialysate containing an FXa inhibitor by lyophilization or the like.
- the dialysate concentrate can be diluted with an appropriate method before use, for example, with purified water to obtain a dialysate.
- the compound of the present invention or the pharmaceutical composition is administered once or continuously in one blood extracorporeal circulation once, or divided into several times as necessary.
- the dose of the compound of the present invention or the pharmaceutical composition is 0.01 mg to 10 g, preferably 1 mg to 1000 mg as the amount of the compound that is an active ingredient per blood per day or the active ingredient per day. It can be appropriately increased or decreased according to the age, weight, symptoms, etc. of the subject.
- the appropriate concentration of the active ingredient compound in the dialysate depends on the compound used, the severity of the disease being treated and the characteristics of the patient being treated, but usually at the appropriate equilibrium of the compounds that can be used.
- the average plasma concentration is in the range of 0.0001 to 1000 ⁇ mol / L, preferably 0.005 to 20 ⁇ mol / L.
- Step 1 Synthesis of 1,2,3,4-tetrahydroisoquinolin-7-ol acetate Acetic acid (200 mL) was added to isoquinolin-7-ol (10.0 g, 68.9 mmol) and 86% platinum oxide (700 mg), The mixture was stirred at room temperature for 40 hours under a hydrogen atmosphere. Insoluble matter was filtered off, and the solvent was distilled off under reduced pressure. To the residue obtained, acetone and diethyl ether were added to precipitate a solid, whereby the title compound was obtained.
- Step 2 Synthesis of tert-butyl 7-hydroxy-3,4-dihydroisoquinoline-2 (1H) -carboxylate 1,2,3,4-tetrahydroisoquinolin-7-ol acetate (12.7 g, 60.5 mmol) Triethylamine (25 mL, 182 mmol) was added to a dichloromethane solution (150 mL), and a solution of ditert-butyl dicarbonate (13.2 g, 60.5 mmol) in dichloromethane (150 mL) was added dropwise under ice cooling, followed by stirring for 1 hour. .
- the residue obtained by evaporating the solvent under reduced pressure was diluted with ethyl acetate, washed with 1N hydrochloric acid, saturated aqueous sodium hydrogen carbonate solution and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.
- the title compound was obtained by adding ethyl acetate and diethyl ether to the obtained residue to precipitate a solid.
- Step 3 tert-Butyl 7-( ⁇ [1- (Pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) -3,4-dihydroisoquinoline-2 (1H) -carboxylate Synthesis of trifluoroacetate After stirring 6 mL of a pyridine solution of 291 mg (1.20 mmol) of 1-pyridin-4-ylpiperidine-4-carboxylic acid and 273 mg (1.32 mmol) of N, N′-dicyclohexylcarbodiimide (hereinafter DCC) at room temperature for 30 minutes , T-butyl 7-hydroxy-3,4-dihydroisoquinoline-2 (1H) -carboxylate (300 mg, 1.20 mmol) was added, and the mixture was further stirred at room temperature overnight.
- DCC N, N′-dicyclohexylcarbodiimide
- the residue obtained by concentrating the reaction solution under reduced pressure was subjected to reverse phase HPLC using octadodecyl group chemically bonded silica gel as a filler, and containing 0.1% (v / v) trifluoroacetic acid, water.
- the title compound was obtained by elution with a mixed solution of acetonitrile and lyophilization of the desired fraction.
- Step 4 2- [Amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl 1- (pyridin-4-yl) piperidine-4-carboxylate Synthesis of ditrifluoroacetate tert- Butyl 7-( ⁇ [1- (pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) -3,4-dihydroisoquinoline-2 (1H) -carboxylate trifluoroacetate (50 mg, 0.097 mmol 4N hydrochloric acid / 1,4-dioxane solution (0.8 mL) was added to 1,4-dioxane solution (0.2 mL) and stirred at room temperature for 1 hour.
- Step 1 Synthesis of ethyl 1- (pyridin-4-yl) piperidine-4-carboxylate
- Ethanol suspension of 1- (pyridin-4-yl) piperidine-4-carboxylic acid (20.0 g, 97.0 mmol) (480 mL) was added dropwise thionyl chloride (7.1 mL, 97.0 mmol), and the mixture was stirred at 50 ° C. overnight.
- the residue obtained by distilling off the solvent under reduced pressure was diluted with dichloromethane, washed with 1N aqueous sodium hydroxide solution and saturated aqueous ammonium chloride solution, dried over anhydrous sodium sulfate, and concentrated under reduced pressure to purify the title compound without purification. Obtained.
- Step 4 [1- (Pyridin-4-yl) piperidin-4-yl] methyl 2- [amino (imino) methyl] -1,2,3,4-tetrahydroisoquinoline-7-carboxylate of ditrifluoroacetate Synthesis The same procedure as in Step 4 of Example 1 was performed using 2-tert-butyl 7- ⁇ [1- (pyridin-4-yl) piperidin-4-yl] methyl ⁇ 3,4-dihydroisoquinoline-2,7 ( 1H) -dicarboxylate (142 mg, 0.314 mmol) was used as starting material to give the title compound.
- Step 1 Synthesis of tert-butyl 7- ⁇ [(trifluoromethyl) sulfonyl] oxy ⁇ -3,4-dihydroisoquinoline-2 (1H) -carboxylate tert-butyl 7-hydroxy-3,4-dihydroisoquinoline-2
- 2,6-lutidine (0.56 mL, 4.81 mmol
- trifluoromethanesulfonic anhydride (0 .742 mL, 4.41 mmol
- Step 3 Synthesis of tert-butyl 7- (hydroxymethyl) -3,4-dihydroisoquinoline-2 (1H) -carboxylate
- 2-tert-butyl 7-ethyl 3 4-Dihydroisoquinoline-2,7 (1H) -dicarboxylate (300 mg, 0.982 mmol) was used as a starting material, and the title compound was obtained without purification.
- Step 4 Synthesis of tert-butyl 7-[( ⁇ [1- (pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) methyl] -3,4-dihydroisoquinoline-2 (1H) -carboxylate
- Step 5 2- [Amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl ⁇ methyl 1- (pyridin-4-yl) piperidin-4-carboxylate of ditrifluoroacetate Synthesis The same procedure as in Step 4 of Example 1 was performed using tert-butyl 7-[( ⁇ [1- (pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) methyl] -3,4-dihydroisoquinoline. -2 (1H) -carboxylate (234 mg, 0.518 mmol) was used as starting material to give the title compound.
- Step 1 Synthesis of tert-butyl 7- ⁇ [4- (pyrrolidin-1-ylcarbonyl) benzoyl] oxy ⁇ -3,4-dihydroisoquinoline-2 (1H) -carboxylate 4- (pyrrolidin-1-ylcarbonyl) Dehydrated pyridine (4 mL) was added to benzoic acid (263 mg, 1.20 mmol) and DCC (273 mg, 1.32 mmol), stirred at room temperature for 30 minutes, and then tert-butyl 7-hydroxy-3,4-dihydroisoquinoline- 2 (1H) -carboxylate (300 mg, 1.20 mmol) was added and stirred at room temperature overnight.
- Step 2 2- [Amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl 4- (pyrrolidin-1-ylcarbonyl) benzoate Synthesis of trifluoroacetate Step 4 of Example 1 and Similar procedure starting with tert-butyl 7- ⁇ [4- (pyrrolidin-1-ylcarbonyl) benzoyl] oxy ⁇ -3,4-dihydroisoquinoline-2 (1H) -carboxylate (154 mg, 0.342 mmol) Using the starting material, the title compound was obtained.
- Step 1 Synthesis of 4-[(benzyloxy) methyl] -1- (pyridin-4-yl) piperidine-4-carboxylic acid
- Ethyl 1- (pyridin-4-yl) piperidine-4-carboxylate (1.0 g, 4.26 mmol) was dissolved in THF (10 mL), and 1.8 M lithium diisopropylamide (2.6 mL) was added dropwise at -78 ° C. After stirring for 30 minutes, benzyloxymethyl chloride (0.6 mL, 4.26 mmol) was added dropwise. After stirring at room temperature for 2 hours, it was post-treated according to a conventional method to obtain an intermediate.
- the obtained intermediate (200 mg, about 0.56 mmol) was dissolved in 6N aqueous sodium hydroxide solution (2 mL), THF (2 mL), and ethanol (1 mL), and stirred at 50 ° C. overnight. After distilling off the solvent, water (3 mL) was added and neutralized with concentrated hydrochloric acid, and the precipitated solid was collected by filtration or extracted with ethyl acetate to obtain the title compound.
- Step 2 tert-Butyl 7-[( ⁇ 4-[(benzyloxy) methyl] -1- (pyridin-4-yl) piperidin-4-yl ⁇ carbonyl) oxy] -3,4-dihydroisoquinoline-2 (1H ) -Carboxylate Synthesis 4-[(Benzyloxy) methyl] -1- (pyridin-4-yl) piperidine-4-carboxylic acid (57 mg, 0.18 mmol), tert-butyl 7-hydroxy-3,4- Dihydroisoquinoline-2 (1H) -carboxylate (75 mg, 0.18 mmol), DCC (57 mg, 0.27 mmol), and DMAP (42 mg) were mixed in dichloromethane (2 mL) and stirred at room temperature overnight.
- Step 3 2- [Amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl 4-[(benzyloxy) methyl] -1- (pyridin-4-yl) piperidin-4-carboxy Synthesis of rate ditrifluoroacetate The same procedure as in Step 4 of Example 1 was carried out using tert-butyl 7-[( ⁇ 4-[(benzyloxy) methyl] -1- (pyridin-4-yl) piperidine-4 -Il ⁇ carbonyl) oxy] -3,4-dihydroisoquinoline-2 (1H) -carboxylate (107 mg) to give the title compound.
- Example 6 2- [amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl 4-methoxymethyl-1- (pyridin-4-yl) piperidine-4-carboxylate ditrifluoro Acetate
- the same operation as in Step 1 of Example 5 was carried out using methoxymethyl chloride instead of benzyloxymethyl chloride to obtain an intermediate, and further the same operations as in Step 2 to Step 3 of Example 5 were performed. This gave the title compound.
- Step 1 Synthesis of tert-butyl 5-bromo-1,3-dihydro-2H-isoindole-2-carboxylate Triethylamine (1) was added to a dichloromethane solution (45 mL) of 5-bromoisoindoline (1.78 g, 9.00 mmol). .25 mL, 9.00 mmol) and ditert-butyl dicarbonate (1.96 g, 9.00 mmol) were added under ice-cooling, and the mixture was stirred at room temperature for 2.5 hours.
- N, N-dimethylethylamine (0.988 mL, 9.00 mmol) was added under ice cooling, and the mixture was stirred at room temperature for 1 hour, and 1N hydrochloric acid was added to the reaction mixture.
- the mixture was extracted with dichloromethane, washed with 1N hydrochloric acid, saturated aqueous sodium hydrogen carbonate solution and saturated brine, and dried over anhydrous magnesium sulfate.
- the residue obtained by concentration under reduced pressure was purified by silica gel chromatography (hexane: ethyl acetate 100: 0 to 92: 8) to give the title compound.
- Step 2 Synthesis of 2-tert-butyl 5-ethyl 1,3-dihydro-2H-isoindole-2,5-dicarboxylate The same procedure as in Step 2 of Example 3 was performed using , 3-Dihydro-2H-isoindole-2-carboxylate (1.71 g, 5.73 mmol) was used as a starting material to give the title compound.
- Step 4 Synthesis of 2-tert-butyl 5- ⁇ [1- (pyridin-4-yl) piperidin-4-yl] methyl ⁇ 1,3-dihydro-2H-isoindole-2,5-dicarboxylate
- 2- (tert-butoxycarbonyl) isoindoline-5-carboxylic acid 138 mg, 0.526 mmol
- [1- (pyridin-4-yl) piperidin-4-yl] methanol (101 mg, 0.526 mmol) was used as a starting material, and the title compound was obtained without purification. Yield 376 mg
- Step 5 [1- (Pyridin-4-yl) piperidin-4-yl] methyl 2- [amino (imino) methyl] isoindoline-5-carboxylate Synthesis of ditrifluoroacetate As in Step 4 of Example 1 Of 2-tert-butyl 5- ⁇ [1- (pyridin-4-yl) piperidin-4-yl] methyl ⁇ 1,3-dihydro-2H-isoindole-2,5-dicarboxylate (376 mg , 0.526 mmol) as the starting material to give the title compound.
- Step 1 Synthesis of tert-butyl 5- (hydroxymethyl) -1,3-dihydro-2H-isoindole-2-carboxylate
- 2-tert-butyl 5-ethyl 1 3-Dihydro-2H-isoindole-2,5-dicarboxylate (300 mg, 1.03 mmol) was used as a starting material, and the title compound was obtained without purification. Yield 247 mg (0.991 mmol) Yield 96% MS (ESI, m / z) 250 [M + H] +
- Step 2 Synthesis of tert-butyl 5-[( ⁇ [1- (pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) methyl] -1,3-dihydro-2H-isoindole-2-carboxylate
- 1- (pyridin-4-yl) piperidine-4-carboxylic acid 82.7 mg, 0.401 mmol
- -Dihydro-2H-isoindole-2-carboxylate 100 mg, 0.401 mmol
- Step 3 ⁇ 2- [Amino (imino) methyl] -isoindoline-5-yl ⁇ methyl 1- (pyridin-4-yl) piperidin-4-carboxylate Synthesis of ditrifluoroacetate Step 4 of Example 1 and A similar procedure was performed for tert-butyl 5-[( ⁇ [1- (pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) methyl] -1,3-dihydro-2H-isoindole-2-carboxyl. The rate (214 mg, 0.401 mmol) was used as starting material to give the title compound.
- Step 3 tert-Butyl 8-( ⁇ [1- (Pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) -1,3,4,5-tetrahydro-2H-2-benzazepine-2-carboxylate
- Step 4 2- [Amino (imino) methyl] -2,3,4,5-tetrahydro-1H-2-benzazepin-8-yl 1- (pyridin-4-yl) piperidine-4-carboxylate ditrifluoroacetic acid Synthesis of salt The same operation as in Step 4 of Example 1 was carried out by using tert-butyl 8-( ⁇ [(1- (pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) -1,3,4, 5-Tetrahydro-2H-2-benzazepine-2-carboxylate (119 mg, 0.228 mmol) was used as a starting material to give the title compound.
- Step 1 Synthesis of ethyl 2- (tert-butoxycarbonyl) -2,3,4,5-tetrahydro-1H-2-benzazepine-8-carboxylate The same procedure as in Step 1 and Step 2 of Example 3 was performed. -Butyl 8-hydroxy-1,3,4,5-tetrahydro-2H-2-benzazepine-2-carboxylate (700 mg, 2.66 mmol) was used as a starting material to give the title compound.
- Step 2 Synthesis of tert-butyl 8- (hydroxymethyl) -1,3,4,5-tetrahydro-2H-2-benzazepine-2-carboxylate
- ethyl 2- (tert-Butoxycarbonyl) -2,3,4,5-tetrahydro-1H-2-benzazepine-8-carboxylate (407 mg, 1.27 mmol) was used as a starting material, and the title compound was obtained without purification.
- Step 3 Tert-butyl 8-[( ⁇ [1- (pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) methyl] -1,3,4,5-tetrahydro-2H-2-benzazepine-2 —Synthesis of Carboxylate
- Step 4 ⁇ 2- [Amino (imino) methyl] -2,3,4,5-tetrahydro-1H-2-benzazepin-8-yl ⁇ methyl 1- (pyridin-4-yl) piperidine-4-carboxylate Synthesis of trifluoroacetate salt The same procedure as in Step 4 of Example 1 was performed using tert-butyl 8-[( ⁇ [1- (pyridin-4-yl) piperidin-4-yl] carbonyl ⁇ oxy) methyl] -1 , 3,4,5-Tetrahydro-2H-2-benzazepine-2-carboxylate (165 mg, 0.291 mmol) was used as a starting material to give the title compound.
- Step 1 Synthesis of 2- (tert-butoxycarbonyl) -2,3,4,5-tetrahydro-1H-2-benzazepine-8-carboxylic acid
- ethyl 2- (tert -Butoxycarbonyl) -2,3,4,5-tetrahydro-1H-2-benzazepine-8-carboxylate 343 mg, 1.07 mmol
- Step 3 [1- (Pyridin-4-yl) piperidin-4-yl] methyl 2- [amino (imino) methyl] -2,3,4,5-tetrahydro-1H-2-benzazepine-8-carboxylate Synthesis of trifluoroacetate salt The same procedure as in Step 4 of Example 1 was performed using 2-tert-butyl 8- ⁇ [1- (pyridin-4-yl) piperidin-4-yl] methyl ⁇ 1,3,4, 5-Tetrahydro-2H-2-benzazepine-2,8-dicarboxylate (156 mg, 0.296 mmol) was used as a starting material to give the title compound.
- Step 1 Synthesis of tert-butyl 7-[(4- ⁇ [1- (tert-butoxycarbonyl) piperidin-4-yl] oxy ⁇ benzoyl) oxy] -3,4-dihydroisoquinoline-2 (1H) -carboxylate 4- ⁇ [1- (tert-Butoxycarbonyl) piperidin-4-yl] oxy ⁇ benzoic acid (200 mg, 0.622 mmol), tert-butyl 7-hydroxy-3,4-dihydroisoquinoline-2 (1H) -carboxy The rate (155 mg, 0.622 mmol), DCC (141 mg, 0.684 mmol), and DMAP (114 mg, 0.933 mmol) were mixed in dichloromethane (3.5 mL) and stirred at room temperature overnight.
- Step 2 2- [Amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl 4-( ⁇ 1- [amino (imino) methyl] piperidin-4-yl ⁇ oxy) benzoate Nitri Synthesis of fluoroacetate tert-butyl 7-[(4- ⁇ [1- (tert-butoxycarbonyl) piperidin-4-yl] oxy ⁇ benzoyl) oxy] -3,4-dihydroisoquinoline-2 (1H) -carboxy To a 1,4-dioxane solution (1.5 mL) of the rate (189 mg, 0.342 mmol) was added 4N hydrochloric acid / 1,4-dioxane solution (6 mL), and the mixture was stirred at room temperature for 3 hours.
- Example 13 2- (1-Iminoethyl) -1,2,3,4-Tetrahydroisoquinolin-7-yl 4- ⁇ [1- (1-Iminoethyl) piperidin-4-yl] oxy ⁇ benzoate ditrifluoroacetate tert-Butyl 7-[(4- ⁇ [1- (tert-butoxycarbonyl) piperidin-4-yl] oxy ⁇ benzoyl) oxy] -3,4-dihydroisoquinoline-2 (1H) -carboxylate (201 mg, 0 .363 mmol) in 1,4-dioxane (1.5 mL) was added 4N hydrochloric acid / 1,4-dioxane solution (6 mL), and the mixture was stirred at room temperature for 3 hours.
- Step 1 Benzyl 4- ⁇ 4-[( ⁇ 2- [amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl ⁇ oxy) carbonyl] phenoxy ⁇ piperidine-1-carboxylate trifluoro Synthesis of acetate salt 4-( ⁇ 1-[(benzyloxy) carbonyl] piperidin-4-yl ⁇ oxy) benzoic acid (170 mg, 0.478 mmol), tert-butyl 7-hydroxy-3,4-dihydroisoquinoline-2 (1H) -carboxylate (119 mg, 0.478 mmol), DCC (109 mg, 0.526 mmol), and DMAP (87.6 mg, 0.717 mmol) were mixed in dichloromethane (2.5 mL) and overnight at room temperature.
- Step 2 2- [amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl 4- ⁇ [1- (1-iminoethyl) piperidin-4-yl] oxy ⁇ benzoate ditrifluoroacetic acid Salt Synthesis Benzyl 4- ⁇ 4-[( ⁇ 2- [Amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl ⁇ oxy) carbonyl] phenoxy ⁇ piperidine-1-carboxylate Tri To a solution of fluoroacetate (166 mg, 0.258 mmol) in acetic acid (5 mL) was added 10% palladium / carbon (20 mg), and the mixture was stirred at room temperature under a hydrogen atmosphere for 2 hours.
- Step 2 4-( ⁇ 1-[(Benzyloxy) carbonyl] piperidin-4-yl ⁇ oxy) benzyl 2- [amino (imino) methyl] -1,2,3,4-tetrahydroisoquinoline-7-carboxylate Tri Synthesis of Fluoroacetate
- Carbonyl) -1,2,3,4-tetrahydroisoquinoline-7-carboxylic acid 73 mg, 0.263 mmol
- Step 3 4- ⁇ [1- (1-Iminoethyl) piperidin-4-yl] oxy ⁇ benzyl 2- [amino (imino) methyl] -1,2,3,4-tetrahydroisoquinoline-7-carboxylate ditrifluoro Synthesis of Acetate
- the same procedure as in Step 2 of Example 14 was performed using 4-( ⁇ 1-[(benzyloxy) carbonyl] piperidin-4-yl ⁇ oxy) benzyl 2- [amino (imino) methyl] -1, 2,3,4-Tetrahydroisoquinoline-7-carboxylate trifluoroacetate (61 mg, 0.0929 mmol) was used as a starting material to give the title compound.
- Step 1 Benzyl 4- ⁇ 4-[( ⁇ 2- [amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl ⁇ methoxy) carbonyl] phenoxy ⁇ piperidine-1-carboxylate trifluoro Synthesis of acetate salt
- the same procedure as in Step 1 of Example 14 was performed using 4-( ⁇ 1-[(benzyloxy) carbonyl] piperidin-4-yl ⁇ oxy) benzoic acid (181 mg, 0.509 mmol), and tert- Butyl 7- (hydroxymethyl) -3,4-dihydroisoquinoline-2 (1H) -carboxylate (134 mg, 0.509 mmol) was used as starting material to give the title compound.
- Step 2 ⁇ 2- [Amino (imino) methyl] -1,2,3,4-tetrahydroisoquinolin-7-yl ⁇ methyl 4- ⁇ [1- (1-iminoethyl) piperidin-4-yl] oxy ⁇ benzoate Synthesis of trifluoroacetate salt The same procedure as in Step 2 of Example 14 was performed using benzyl 4- ⁇ 4-[( ⁇ 2- [amino (imino) methyl] -1,2,3,4-tetrahydroisoquinoline-7- (Il ⁇ methoxy) carbonyl] phenoxy ⁇ piperidine-1-carboxylate trifluoroacetate (225 mg, 0.343 mmol) was used as a starting material to give the title compound.
- Step 1 Synthesis of tert-butyl N- (2- ⁇ [(benzyloxy) acetyl] amino ⁇ -4-cyanophenyl) glycinate 2-Benzyloxyacetic acid (0.10 mL, 0.72 mmol), HOAt (117 mg,. 86 mmol) and HATU (330 mg, 0.86 mmol) were dissolved in DMF (1 mL) and triethylamine (0.15 mL, 1.1 mmol) and stirred for 5 minutes. Thereto was added tert-butyl N- (2-amino-4-cyanophenyl) glycinate (178 mg, 0.72 mmol), and the mixture was stirred overnight.
- Step 2 ⁇ 5- [Amino (imino) methyl] -1- [2- (cyclohexylamino) -2-oxoethyl] -1H-benzimidazol-2-yl ⁇ methyl 1- (pyridin-4-yl) piperidine-4 -Carboxylate Synthesis of ditrifluoroacetate tert-butyl N- (2- ⁇ [(benzyloxy) acetyl] amino ⁇ -4-cyanophenyl) glycinate (0.12 g, 0.37 mmol) in acetic acid (10 mL) Dissolved and stirred at 90 ° C. overnight.
- the obtained compound was dissolved in 4N hydrochloric acid / 1,4-dioxane solution (4.5 mL) and ethanol (0.5 mL) and stirred overnight. After the solvent was distilled off, ethanol (5 mL) and ammonium carbonate (0.12 g, 1.25 mmol) were added and stirred overnight. The insoluble material was filtered off, the solvent was distilled off, and the resulting compound was dissolved in ethanol (10 mL). A catalytic amount of 10% Pd / carbon was added and stirred overnight under a hydrogen atmosphere. After the catalyst was filtered off, the solvent was distilled off to obtain an intermediate.
- Table 1 shows the structural formulas of the compounds described in the examples.
- TFA represents trifluoroacetic acid.
- Test Example 1 Measurement of Activation Factor X Activity Inhibitory Activity Using a 96-well plate (# 3396, Costar) in a 100 mM Tris-HCl buffer solution (130 ⁇ L) containing 0.02% Tween20, 0.1% PEG6000, 0.2M NaCl 0.015 U / ml FXa (10 ⁇ L) and the test compound (10 ⁇ L) were mixed for 10 minutes, and then the chromogenic substrate 0.2 mM S-2222 (50 ⁇ L) was added. Using a microplate reader Benchmark Plus (BIO-RAD), the reaction rate was measured from the change over time in absorbance at 405 nm. The reaction rate of the control was taken as 100%, and the negative logarithm of the concentration at which the reaction rate of the control was suppressed by 50% was taken as the pIC 50 value. The results are shown in Table 2 as pIC 50 (FXa).
- Test Example 2 Measurement of Activation Factor II (FIIa, Thrombin) Inhibitory Activity Using a 96-well plate (# 3396, Costar), 100 mM Tris-HCl buffer containing 0.02% Tween20, 0.1% PEG6000, 0.2M NaCl (130 ⁇ L) was mixed with 0.125 U / mL activated factor IIa (thrombin) (10 ⁇ L) and the test compound (10 ⁇ L) for 10 minutes, and then the chromogenic substrate 0.1 mM S-2238 (50 ⁇ L) was added. Using a microplate reader Benchmark Plus (BIO-RAD), the reaction rate was measured from the change over time in absorbance at 405 nm. The reaction rate of the control was taken as 100%, and the negative logarithm of the concentration at which the reaction rate of the control was suppressed by 50% was taken as the pIC 50 value. The results are shown in Table 2 as pIC 50 (IIa).
- Test Example 3 Measurement of Anticoagulant Activity This test was in accordance with the aPTT measurement method using a fully automatic blood coagulation time measurement device Sysmex CA-1500. Place 10 mg / ml DDVP solution (DDVP standard product, Wako) (4 ⁇ L) and test compound solution (20 ⁇ L) in a sample tube (MS-18, Nippon Medical Science) and human plasma (standard human for blood coagulation test) A sample to which plasma, GCH-100A, and Sysmex (180 ⁇ L) were added was used as a test sample. The test sample (50 ⁇ L) was incubated at 37 ° C.
- Test Example 4 Plasma Stability Evaluation A test compound solution (5 ⁇ L) prepared to 100 ⁇ g / mL was added to human plasma (495 ⁇ L) (final drug solution concentration 1 ⁇ g / mL) and incubated at 37 ° C. 50 ⁇ L was sampled at 0 minutes, 2 minutes, 5 minutes, 10 minutes, 30 minutes, and 60 minutes after the chemical solution was added, and acetonitrile (100 ⁇ L) was added and mixed to stop the reaction.
- the protein was removed by centrifugation at 15000 rpm for 5 minutes, and the supernatant (20 ⁇ L) was diluted with 100 mmol / L ammonium formate solution (pH 4) (180 ⁇ L) to obtain LC / MS / Measurement was performed with MS.
- the half-life was calculated by the following method. That is, the half-life (T 1/2 ) was calculated from the slope of a straight line connecting the two logarithmic conversion values, with the 0 minute value being the theoretical concentration (1000 ng / mL) and the 2 minute value being the lower limit of quantification. The results are shown in Table 2.
- the compound represented by the formula (1) or (5) and a pharmaceutically acceptable salt thereof have high FXa inhibitory activity and anti- (blood) coagulation action, and anti- ( Blood)
- a coagulant As a coagulant (agent), various diseases in which an FXa-dependent coagulation process is involved in the pathology, such as thrombus formation during extracorporeal circulation, cerebral infarction, cerebral thrombus, cerebral embolism, transient ischemic attack (TIA ), Acute and chronic myocardial infarction, unstable angina pectoris, pulmonary embolism, peripheral arterial occlusion, deep vein thrombosis, disseminated intravascular coagulation syndrome, thrombosis after artificial vascular and prosthetic valve replacement, after coronary artery bypass surgery
- Can be used as a therapeutic or preventive agent for reocclusion and restenosis after revascularization such as reocclusion and restenosis, percutaneous transluminal coronary angioplasty (PTCA) or percutaneous
- the compound represented by the formula (1) or (5) and a pharmaceutically acceptable salt thereof are anti- (blood) coagulants (such as hemodialyzers, heart-lung machines, etc.) Agent).
- the compound represented by the formula (1) or (5) and a pharmaceutically acceptable salt thereof disappear rapidly from the blood, that is, have a short half-life in blood, bleeding symptoms are caused during administration.
- the compound represented by the formula (1) or (5) and a pharmaceutically acceptable salt thereof have a low thrombin inhibitory activity, are FXa selective inhibitors, and can be used safely from the viewpoint of bleeding risk. It is an anti (blood) coagulant (agent) that can be used.
- a low molecular weight FXa inhibitor for example, a compound represented by the formula (1) or (5) and a pharmaceutically acceptable salt thereof are anti- (blood) coagulants used in blood extracorporeal circuit / blood extracorporeal circuit ( Agent).
- selective low-molecular-weight FXa inhibitors that rapidly disappear from the blood that is, have a short half-life in blood
- compounds represented by the formula (1) or (5) are used for blood extracorporeal circuits. It can be used safely and conveniently as an anti- (blood) coagulant (agent) for the prevention of blood coagulation, and is useful because it clearly requires less hemostasis treatment and attention after completion of extracorporeal circulation.
- the present invention can also provide a method for preventing thrombus formation in the extracorporeal blood circuit, which includes incorporating a low-molecular FXa inhibitor into a component of the extracorporeal blood circuit.
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Abstract
Description
また、本発明は、低分子FXa阻害剤、特に血中半減期の短い低分子FXa阻害剤の血液体外循環回路における使用などにも関する。
[1] 下記の式(1)で表されるアミジン誘導体又はその医薬的に許容しうる塩:
Xは炭素数1~6のアルキル基又はアミノ基を示し、
V1は水素原子、水酸基、ハロゲン原子、置換基を有していてもよい炭素数1~10のアルキル基、置換基を有していてもよい炭素数1~10のアルコキシ基、置換基を有していてもよい炭素数1~10のアルキルアミノ基、炭素数2~8の含窒素脂肪族複素環基、置換基を有していてもよい炭素数1~10のアルキルチオ基、シアノ基、ニトロ基、カルボキシル基、置換基を有していてもよいカルバモイル基又は置換基を有していてもよい炭素数2~10のアルコキシカルボニル基を示し、
nは0~2の整数を示し、
R1は下記式(2-1)又は(2-2)で表される基を示す。
mは0~2の整数を示し、
R2は下記式(3)で表される基を示す。
kは0~2の整数を示し、
環Aは炭素数6~10のアリール基、炭素数1~10のヘテロアリール基、炭素数2~8の含窒素脂肪族複素環基又は炭素数3~10のシクロアルキル基を示し、
V2は水素原子、水酸基、ハロゲン原子、置換基を有していてもよい炭素数1~10のアルキル基、置換基を有していてもよい炭素数1~10のアルコキシ基、置換基を有していてもよい炭素数1~10のアルキルアミノ基、炭素数2~8の含窒素脂肪族複素環基、置換基を有していてもよい炭素数1~10のアルキルチオ基、シアノ基、ニトロ基、カルボキシル基、置換基を有していてもよいカルバモイル基又は置換基を有していてもよい炭素数2~10のアルコキシカルボニル基を示し、
Wは炭素数1~6のアルキル基で置換されていてもよいアミジノ基、炭素数1~6のアルキル基で置換されていてもよいグアニジノ基、1位にイミノ基を有していてもよい炭素数1~6のアルキル基又は下記式(4)で表される基を示す。
環Bは炭素数1~10のヘテロアリール基、又は炭素数2~8の含窒素脂肪族複素環基を示し、
Y1は単結合、炭素数1~6のアルキル基で置換されていてもよい-NH-、酸素原子、硫黄原子、メチレン基、又は-CO-を示し、
Zは水素原子、ハロゲン原子、炭素数1~6のアルキル基で置換されていてもよいアミジノ基、炭素数1~6のアルキル基で置換されていてもよいグアニジノ基、又は1位にイミノ基を有していてもよい炭素数1~6のアルキル基を示す。)}]〉。
[2] 下記の式(1-2)で表される、上記[1]記載のアミジン誘導体又はその医薬的に許容しうる塩:
[3] 式(3)において、
環Aがフェニル基、ピリジル基、チオフェニル基、ピペリジル基又はピペラジニル基であり、
V2が水素原子、ハロゲン原子、炭素数1~6のアルキル基、カルボキシル基、置換基を有していてもよい炭素数1~6のアルコキシ基、又は置換基を有していてもよい炭素数2~10のアルコキシカルボニル基である、上記[2]記載のアミジン誘導体又はその医薬的に許容しうる塩。
[4] 式(3)において、
Wが式(4)で表される基であり、
環Bが炭素数2~8の含窒素脂肪族複素環基であり、
Y1が酸素原子、硫黄原子又はメチレン基であり、
Zが水素原子、ハロゲン原子、アミジノ基、又は1位にイミノ基を有していてもよい炭素数1~6のアルキル基である、上記[3]記載のアミジン誘導体又はその医薬的に許容しうる塩。
[5] 式(3)において、
Wが式(4)で表される基であり、
環Bがピリジル基であり、
Y1が単結合である、上記[3]記載のアミジン誘導体又はその医薬的に許容しうる塩。
[6] 下記の式(5)で表されるアミジン誘導体又はその医薬的に許容しうる塩:
V3は水素原子又は下記式(6)で表される基を示し、
R3は水素原子、置換基を有していてもよい炭素数1~6のアルキル基、置換基を有していてもよい炭素数3~10のシクロアルキル基、カルボキシル基、炭素数2~7のアルコキシカルボニル基、置換基を有していてもよい炭素数6~10のアリール基、置換基を有していてもよいヘテロアリール基、又は炭素数2~8の飽和の含窒素脂肪族複素環基を示し、
Y2は酸素原子、-CO-、-CO2-、-SO2-、-CONH-又は-CH=CH-を示し、
Y3は-(CH2)i-又は-(CH2)i’-CUU’-(CH2)i”-(ここで、U及びU’は同一又は異なって、それぞれ水素原子、又は炭素数1~6のアルキル基を示し、i、i’及びi”は独立して、それぞれ0~3の整数を示す)を示し、
jは0~3の整数を示す。}
R1は上記[1]と同義である。]。
[7] 式(5)において、
V3が式(6)で表される基であり、
式(3)において、
環Aがフェニル基、ピリジル基、チオフェニル基、ピペリジル基又はピペラジニル基であり、
V2が水素原子、ハロゲン原子、炭素数1~6のアルキル基、カルボキシル基、置換基を有していてもよい炭素数1~6のアルコキシ基、又は置換基を有していてもよい炭素数2~10のアルコキシカルボニル基である、上記[6]記載のアミジン誘導体又はその医薬的に許容しうる塩。
[8] 式(5)において、
V3が式(6)で表される基であり、
式(3)において、
Wが式(4)で表される基であり、
環Bが炭素数2~8の含窒素脂肪族複素環基であり、
Y1が酸素原子、硫黄原子又はメチレン基であり、
Zが水素原子、アミジノ基、又は1位にイミノ基を有していてもよい炭素数1~6のアルキル基である、上記[7]記載のアミジン誘導体又はその医薬的に許容しうる塩。
[9] 式(5)において、
V3が式(6)で表される基であり、
式(3)において、
Wが式(4)で表される基であり、
環Bがピリジル基であり、
Y1が単結合である、上記[7]記載のアミジン誘導体又はその医薬的に許容しうる塩。
[10] 上記[1]~[9]のいずれかに記載のアミジン誘導体又はその医薬的に許容しうる塩を含有する活性化血液凝固第X因子阻害剤。
[11] 上記[1]~[9]のいずれかに記載のアミジン誘導体又はその医薬的に許容しうる塩を含有する医薬組成物。
[12] 抗血液凝固薬である、上記[11]記載の医薬組成物。
[13] 血液体外循環回路用の抗血液凝固薬である、上記[12]記載の医薬組成物。
[14] 血液透析用の抗血液凝固薬である、上記[12]記載の医薬組成物。
[15] 上記[1]~[9]のいずれかに記載のアミジン誘導体又はその医薬的に許容しうる塩を含有する透析液あるいは透析液濃縮物。
[16] 低分子FXa阻害剤を有効成分として含有する血液体外循環回路用の抗血液凝固薬。
[17] 低分子FXa阻害剤が、血液中からの消失が速やかである、上記[16]記載の血液体外循環回路用の抗血液凝固薬。
[18] 低分子FXa阻害剤がFXa選択的阻害剤である、上記[17]記載の血液体外循環回路用の抗血液凝固薬。
[19] 哺乳動物に対して、上記[1]~[9]のいずれかに記載のアミジン誘導体又はその医薬的に許容しうる塩の有効量を投与することを特徴とする、該哺乳動物における血液凝固阻害方法。
「アリール基」は、置換基を有してもよい、単環~2環式芳香族炭化水素環基、あるいはフェニル基に5~8員のシクロアルキル環が縮環したものを示す。該「アリール基」としては、例えば、フェニル基、ナフチル基、インダニル基及びテトラヒドロナフタレニル基が挙げられる。通常、炭素数6~14であり、炭素数6~10のものが好ましく、またフェニル基、ナフチル基がより好ましく、特に好ましくはフェニル基である。「炭素数6~14のアリール基」は、上記アリール基のうち、炭素数が6~14のものをいい、「炭素数6~10のアリール基」は、上記アリール基のうち、炭素数が6~10のものをいう。
(1)ハロゲン原子、
(2)水酸基、
(3)アミノ基、
(4)炭素数1~10、好ましくは炭素数1~6のアルキル基、
(5)炭素数2~10、好ましくは炭素数2~6のアルケニル基(例えば、ビニル基、アリル基、イソプロペニル基、1-ブテニル基、2-ブテニル基、3-ブテニル基、ブタジエニル基、2-メチルアリル基、ヘキサトリエニル基、3-オクテニル基等)、
(6)炭素数2~10、好ましくは炭素数2~6のアルキニル基(例えば、エチニル基、2-プロピニル基、イソプロピニル基、ブチニル基、tert-ブチニル基、3-ヘキシニル基等)、
(7)フェニルで置換されていてもよい炭素数1~6のアルコキシ基、
(8)炭素数1~6のアルキルアミノ基、
(9)シアノ基、
(10)グアニジノ基、
(11)カルボキシル基、
(12)カルバモイル基、
(13)炭素数6~14、好ましくは炭素数6~10のアリール基、
(14)炭素数1~10、好ましくは炭素数1~9のヘテロアリール基、
(15)炭素数3~10、好ましくは炭素数3~8のシクロアルキル基、
(16)炭素数1~9、好ましくは炭素数2~8の含窒素脂肪族複素環基、
(17)炭素数1~10、好ましくは炭素数1~6のアルキルチオ基、
(18)炭素数1~10、好ましくは炭素数1~6のアシルオキシ基、
(19)炭素数1~10、好ましくは炭素数1~6のアシルアミノ基、
(20)炭素数1~10、好ましくは炭素数1~6のアルキルスルホンアミド基(例えば、メチルスルホンアミド基、エチルスルホンアミド基、プロピルスルホンアミド基、イソプロピルスルホンアミド基、ブチルスルホンアミド基、イソブチルスルホンアミド基、sec-ブチルスルホンアミド基、tert-ブチルスルホンアミド基、シクロプロピルメチルスルホンアミド基、ペンチルスルホンアミド基、イソペンチルスルホンアミド基、ネオペンチルスルホンアミド基、ヘキシルスルホンアミド基、ヘプチルスルホンアミド基、オクチルスルホンアミド基、ノニルスルホンアミド基、デシルスルホンアミド基、(1,1-ジメチル-プロピル)スルホンアミド基、シクロプロピルスルホンアミド基、シクロブチルスルホンアミド基、シクロペンチルスルホンアミド基、シクロヘキシルスルホンアミド基、シクロヘプチルスルホンアミド基、シクロオクチルスルホンアミド基等)、
(21)炭素数2~10、好ましくは炭素数2~7のアルコキシカルボニル基、等が挙げられる。
(1)ハロゲン原子、
(2)水酸基、
(3)アミノ基、
(4)炭素数1~6のアルキル基、
(5)炭素数2~6のアルケニル基、
(6)炭素数2~6のアルキニル基、
(7)フェニルで置換されていてもよい炭素数1~6のアルコキシ基、
(8)炭素数1~6のアルキルアミノ基、
(9)シアノ基、
(10)グアニジノ基、
(11)カルボキシル基、
(12)カルバモイル基、
(13)炭素数1~6のアシルオキシ基、
(14)炭素数1~6のアシルアミノ基、
(15)炭素数3~8のシクロアルキル基、
(16)炭素数1~6のアルキルチオ基、
(17)炭素数1~6のアルキルスルホンアミド基、及び
(18)炭素数2~10のアルコキシカルボニル基である。
置換基として、より好ましくは、フェニルで置換されていてもよい炭素数1~6のアルコキシ基(好ましくは、メトキシ基)である。特に好ましくは、メトキシ基、ベンジルオキシ基である。
置換基の数および位置に特に限定はない。
Xとして好ましくはメチル基又はアミノ基であり、特に好ましくはアミノ基である。
V1としては、水素原子、低級アルコキシ基(例、炭素数1~4のアルコキシ基)又はハロゲン原子が好ましく、特に水素原子が好ましい。
nは0~2が好ましい。
式(2-1)において、mは0または1が好ましい。
kは0または1が好ましい。
特に、R1が式(2-1)で表される基である場合、kは0が好ましく、R1が式(2-2)で表される基である場合、kは1が好ましい。
環Aとしては、フェニル基、ピリジル基、チオフェニル基、ナフチル基、チエニル基、ピペリジル基、ピペラジニル基が好ましく、フェニル基、ナフチル基、チエニル基、ピペリジル基がより好ましく、中でもフェニル基、ピペリジル基が特に好ましい。
別の態様として、環Aとしては、フェニル基、ピリジル基、チオフェニル基、ピペリジル基、ピペラジニル基が好ましい。
V2として好ましくは、水素原子、水酸基、ハロゲン原子、置換基を有していてもよい炭素数1~6のアルキル基、カルボキシル基、置換基を有していてもよい炭素数1~6のアルコキシ基、置換基を有していてもよいカルバモイル基、置換基を有していてもよい炭素数2~10のアルコキシカルボニル基であり、より好ましくは、水素原子、置換基を有していてもよいメチル基(好ましくは、ヒドロキシメチル基、カルボキシメチル基、メトキシメチル基、ベンジルオキシメチル基)、フッ素原子、塩素原子、水酸基、メトキシ基、カルボキシル基、メトキシカルボニル基、エトキシカルボニル基、カルバモイル基、さらに好ましくは、水素原子、置換基を有していてもよいメチル基(好ましくは、メトキシメチル基、ベンジルオキシメチル基)である。
別の態様として、V2としては、水素原子、ハロゲン原子、炭素数1~6のアルキル基、カルボキシル基、置換基を有していてもよい炭素数1~6のアルコキシ基、置換基を有していてもよい炭素数2~10のアルコキシカルボニル基が好ましい。
Wとして好ましくは、アミジノ基、グアニジノ基、1-イミノエチル基、イミノ(ピロリジン-1-イル)メチル基、イミノ(ピロリン-1-イル)メチル基、式(4)で表される基であり、より好ましくは式(4)で表される基である。
環Bとして、好ましくは炭素数1~9のヘテロアリール基、又は炭素数2~8の含窒素脂肪族複素環基であり、より好ましくはピロリジニル基、ピペリジル基、ホモピペリジル基、ピリジル基であり、さらに好ましくはピペリジル基、ピリジル基、ピロリジニル基である。特に好ましくは、ピリジル基である。
別の態様として、環Bとしては、炭素数2~8の含窒素脂肪族複素環基が好ましい。
Y1として好ましくは、単結合、-CO-、酸素原子、硫黄原子、メチレン基であり、特に好ましくは、単結合、-CO-、酸素原子である。
Zとして好ましくは、水素原子、ハロゲン原子、アミジノ基、1位にイミノ基を有していてもよい炭素数1~6のアルキル基であり、より好ましくは、水素原子、フッ素原子、塩素原子、アミジノ基、1位にイミノ基を有していてもよい炭素数1~6のアルキル基(好ましくは、1-イミノエチル基)である。特に好ましくは、水素原子、アミジノ基、1位にイミノ基を有していてもよい炭素数1~6のアルキル基(好ましくは、1-イミノエチル基)である。
R1として好ましい形態は、上記式(1)中のR1について前記した好ましい形態と同様である。
V3として好ましくは、式(6)で表される基である。
R3として好ましくは、シクロヘキシル基又はフェニル基であり、より好ましくはシクロヘキシル基である。
Y2として好ましくは、-CONH-である。
Y3として好ましくは、-(CH2)i-又は-(CH2)i’-CUU’-(CH2)i”-(ここで、iとして好ましくは0又は1であり、i’として好ましくは0又は1であり、i”として好ましくは0であり、Uとして好ましくは水素原子であり、U’として好ましくはメチル基である)であり、より好ましくは、-(CH2)i-(ここで、iとして好ましくは0である)である。
jとして好ましくは、1である。
式(1-2)において、R1、V1、X及びnの好ましい形態は、式(1)中のR1、V1、X及びnについて前記した好ましい形態と同様である。
「血液体外循環回路」とは、血液体外循環における血液回路であり、例えば、人工臓器使用時に生体と人工臓器とをつないで作られた血液回路である。より具体的には、例えば人工心肺利用時、血液透析時のものが挙げられ、本発明においては特に血液透析時の血液体外循環回路が好ましい。
例えば、tert-ブチル 7-ヒドロキシ-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレートなどの、水酸基を有し、窒素上が酸性条件で除去される適当な保護基(Prot)で保護された含窒素ヘテロ環と、対応するカルボン酸誘導体を、例えばジクロロメタン、N,N’-ジメチルホルムアミド(以下、DMF)、ピリジンなどの溶媒中、必要に応じてトリエチルアミン、4-ジメチルアミノピリジン(以下、DMAP)のような有機塩基存在下、N,N’-ジシクロヘキシルカルボジイミド(以下、DCC)、O-(7-アザベンゾトリアゾール-1-イル)-1,1,3,3-テトラメチルウロニウム ヘキサフルオロホスフェート(以下、HATU)、1-ヒドロキシ-7-アザベンゾトリアゾール(以下、HOAt)などの縮合剤を作用させることによって、中間体(7)を得ることが出来る。
例えば、tert-ブチル 7-ヒドロキシ-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレートなどの、水酸基を有し、窒素上が酸性条件で除去される適当な保護基(Prot)で保護された含窒素ヘテロ環を、ジクロロメタンなどの溶媒に溶解し、例えば2,6-ルチジンなどの有機塩基存在下、トリフルオロメタンスルホン酸無水物を作用させることによって、中間体(8)を得ることが出来る。
こうして得られた中間体(8)をDMFなどの溶媒に溶解し、エタノールなどのアルコール、テトラキス(トリフェニルホスフィン)パラジウム(0)などの触媒と混合し、必要に応じてジイソプロピルエチルアミンなどの有機塩基存在下、一酸化炭素ガス雰囲気下で加熱反応することにより、エステル誘導体(9)を得ることが出来る。
こうして得られたエステル誘導体(9)をテトラヒドロフラン(以下、THF)などの溶媒に溶解し、水素化リチウムアルミニウムを作用させることにより、アルコール誘導体(10)を得ることが出来る。
例えばイソニペコチン酸エチルなどの含窒素脂肪族複素環を有する化合物をキシレンなどの溶媒に溶解し、トリエチルアミンなどの有機塩基存在下、クロロピリジンなどのハロゲン原子などの脱離基を有する含窒素複素環化合物を加えて加熱することにより、中間体(11)を得ることが出来る。
こうして得られた中間体(11)を酸性条件下で加水分解することにより、カルボン酸誘導体(12)を得ることが出来る。
例えば4-ヒドロキシ安息香酸エチルなどの水酸基を有するアリールカルボン酸エステル又はヘテロアリールカルボン酸エステルと、例えばN-tert-ブトキシカルボニル-4-ヒドロキシピペリジンなどの水酸基を有し窒素上がベンジルオキシカルボニル基などのパラジウムによる接触還元で除去される適当な保護基(Prot’)で保護された含窒素脂肪族複素環を、THFなどの溶媒に溶解し、ジエチルアゾジカルボン酸(DEAD)及びトリフェニルホスフィンを作用させてエーテル誘導体(13)を得る。
こうして得られたエーテル誘導体(13)を、塩基性条件下で加水分解することにより、カルボン酸誘導体(14)を得ることが出来る。
エステル誘導体(9)を塩基性条件下で加水分解することによりカルボン酸誘導体(15)を得ることが出来る。
カルボン酸誘導体(15)、及び対応するアルコール誘導体を、例えばジクロロメタン、DMFなどの溶媒に溶解し、必要に応じてトリエチルアミンなどの有機塩基存在下、DCC、HATUなどの縮合剤を作用させることによって、中間体(16)を得ることが出来る。
エステル誘導体(11)をTHFなどの溶媒に溶解し、水素化リチウムアルミニウムを作用させることにより、アルコール誘導体(17)を得ることが出来る。
エステル誘導体(13)をTHFなどの溶媒に溶解し、水素化リチウムアルミニウムを作用させることにより、アルコール誘導体(18)を得ることが出来る。
中間体(7)又は(16)にトリフルオロ酢酸、塩酸/1,4-ジオキサン溶液などの酸を作用させることにより、窒素上の保護基を除去した中間体(19)を得ることが出来る。
こうして得られた中間体(19)をエタノールなどの溶媒に溶解し、必要に応じてジイソプロピルエチルアミンなどの有機塩基存在下、例えばエチル アセトイミダートなどの対応するイミダートを作用させることにより、アミジン誘導体(20)を得ることが出来る。
同様にして中間体(19)に、必要に応じてジイソプロピルエチルアミンなどの有機塩基存在下、1H-ピラゾール-1-カルボキサミジンを作用させることにより、グアニジン誘導体(21)を得ることが出来る。
中間体(21’)を、エタノールなどのアルコール、酢酸などの溶媒に溶解し、水素雰囲気下で、例えばパラジウム/炭素などのパラジウム触媒による接触還元を行うことにより環Bの保護基を除去し、中間体(22)を得る。
こうして得られた中間体(22)をエタノール、DMFなどの溶媒に溶解し、必要に応じてジイソプロピルエチルアミンなどの有機塩基存在下、例えばエチル アセトイミダートなどの対応するイミダートを作用させることにより、グアニジン誘導体(23)を得ることが出来る。
例えば4位にハロゲン原子などの脱離基を有する3-ニトロベンゾニトリルをエタノールなどのアルコールを溶媒に用い、トリエチルアミンなどの有機塩基存在下、グリシン tert-ブチルエステルを作用させることにより中間体(26)を得ることが出来る。
この中間体(26)のニトロ基を水素雰囲気下、例えばパラジウム炭素などのパラジウム触媒による接触還元などによりアミノ基へと還元した中間体(27)とし、これをDMFなどの溶媒に溶解し、トリエチルアミンなどの有機塩基存在下、必要に応じてHATU、HOAtなどの縮合剤を用いて、例えば2-ベンジルオキシ酢酸などの水酸基が、水素雰囲気下でのパラジウム触媒による接触還元による除去が可能な保護基(Prot”)で保護されたヒドロキシ酢酸誘導体を作用させることにより、中間体(28)を得ることが出来る。
こうして得られた(28)を、酢酸、メタンスルホン酸、p-トルエンスルホン酸などの酸性条件下にて加熱し、必要に応じてトリフルオロ酢酸などの酸で処理することにより、ベンズイミダゾール中間体(29)を得ることが出来る。
こうして得られた中間体(29)を、DMFなどの溶媒に溶解し、トリエチルアミンなどの有機塩基存在下、対応するアルキルアミン及びHATU、HOAtなどの縮合剤を作用させることにより、中間体(30)を得ることが出来る。
こうして得られた(30)を溶媒として例えばメタノールやエタノールなどのアルコールに溶解し、塩酸/1,4-ジオキサン溶液などの酸を作用させるか、或いは酸として例えば塩化水素ガスを吹き込むことによって、イミダート(31)を得ることが出来る。
こうして得られたイミダート(31)を、溶媒として例えばエタノールなどのアルコールを用い、炭酸アンモニウムなどのアンモニウム塩を用いるか、或いはアンモニアガスを吹き込むことによって、アミジン中間体(32)を得ることが出来る。
こうして得られた(32)を、溶媒としてエタノールなどのアルコールに溶解し、水素雰囲気下で例えばパラジウム/炭素などのパラジウム触媒による接触還元により保護基を除去することにより、アルコール中間体(33)を得ることが出来る。
こうして得られた(33)を、DMF、ジクロロメタンなどの溶媒に溶解し、塩基の存在下、対応するカルボン酸及び縮合剤を作用させるか、或いは、対応するカルボン酸をオキシ塩化リンなどにより酸クロライドへと誘導し、そこへアルコール中間体(33)を作用させることにより、化合物(34)を得ることが出来る。
イソキノリン-7-オール(10.0g,68.9mmol)及び86%酸化白金(700mg)に酢酸(200mL)を加え、水素雰囲気下、室温で40時間撹拌した。不溶物を濾別し、減圧下で溶媒を留去して得られた残渣に、アセトン及びジエチルエーテルを加えて固体を析出させることにより、表題化合物を得た。
収量 12.7g(60.5mmol) 収率 88%
1H-NMR (DMSO-d6, 300MHz)δ1.88 (s, 3H), 2.55 (t, 2H), 2.90 (t, 2H), 3.75 (s, 2H), 6.38 (d, 1H), 6.50 (dd, 1H), 6.82 (d, 1H).
1,2,3,4-テトラヒドロイソキノリン-7-オール 酢酸塩(12.7g,60.5mmol)のジクロロメタン溶液(150mL)にトリエチルアミン(25mL,182mmol)を加え、氷冷下、ジtert-ブチル ジカーボネート(13.2g,60.5mmol)のジクロロメタン溶液(150mL)を滴下し、そのまま1時間撹拌した。減圧下溶媒を留去して得られた残渣を酢酸エチルで希釈し、1N塩酸、飽和炭酸水素ナトリウム水溶液及び飽和食塩水で洗浄した後、無水硫酸マグネシウムで乾燥し、減圧下濃縮した。得られた残渣に酢酸エチル及びジエチルエーテルを加えて固体を析出させることにより、表題化合物を得た。
収量 11.1g(44.4mmol) 収率 74%
MS (ESI, m/z) 250 [M+H]+
1H-NMR (DMSO-d6)δ1.40 (s, 9H), 2.61 (t, 2H), 3.48 (t, 2H), 4.36 (s, 2H), 6.50 (s, 1H), 6.55 (dd, 1H), 6.91 (d, 1H).
1-ピリジン-4-イルピペリジン-4-カルボン酸291mg(1.20mmol)及びN,N’-ジシクロヘキシルカルボジイミド(以下、DCC)273mg(1.32mmol)のピリジン溶液6mLを室温で30分間撹拌した後、t-ブチル 7-ヒドロキシ-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート300mg(1.20mmol)を加え、更に室温で一晩撹拌した。反応液を減圧下濃縮して得られた残渣を、オクタドデシル基化学結合型シリカゲルを充填剤とする逆相HPLCに付し、トリフルオロ酢酸を0.1%(v/v)含有する、水とアセトニトリルの混合溶液で溶出し目的のフラクションを凍結乾燥することにより、表題化合物を得た。
収量 349mg(44.4mmol) 収率 53%
MS (ESI, m/z) 438 [M+H]+
1H-NMR (DMSO-d6)δ1.42 (9H, s), 1.71-1.81 (2H, m), 2.11-2.15 (2H, m), 2.77 (2H, t), 3.04-3.12 (1H, m), 3.40 (2H, t), 3.55 (2H, t), 4.18-4.22 (2H, m), 4.49 (2H, s), 6.93-6.97 (2H, m), 7.19-7.25 (3H, m), 8.25 (2H, d).
tert-ブチル 7-({[1-(ピリジン-4-イル)ピペリジン-4-イル]カルボニル}オキシ)-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート トリフルオロ酢酸塩(50mg,0.097mmol)の1,4-ジオキサン溶液(0.2mL)に4N塩酸/1,4-ジオキサン溶液(0.8mL)を加え、室温で1時間撹拌した。減圧下溶媒を留去して得られた残渣を脱水DMF(1mL)に溶解し、1H-ピラゾール-1-カルボキサミジン塩酸塩(16mg,0.109mmol)及びジイソプロピルエチルアミン(0.047mL,0.272mmol)を加え、室温で一晩撹拌した。減圧下濃縮して得られた残渣を工程3と同様に逆相HPLCで精製し、表題化合物を得た。
収量 31.4mg(0.0517mmol) 収率 57%
MS (ESI, m/z) 380 [M+H]+
1H-NMR (DMSO-d6)δ1.72-1.84 (m, 2H), 2.13-2.19 (m, 2H), 2.89-2.94 (m, 2H), 3.06-3.15 (m, 1H), 3.40 (t, 2H), 3.61-3.65 (m, 2H), 4.22 (d, 2H), 4.59 (s, 2H), 6.95 (d, 1H), 7.02 (dd, 1H), 7.24-7.31 (m, 3H), 7.67 (s, 4H), 8.26 (d, 2H).
1-(ピリジン-4-イル)ピペリジン-4-カルボン酸(20.0g,97.0mmol)のエタノール懸濁液(480mL)に、塩化チオニル(7.1mL,97.0mmol)を滴下し、50℃で一晩撹拌した。減圧下溶媒を留去して得られた残渣をジクロロメタンで希釈し、1N水酸化ナトリウム水溶液及び飽和塩化アンモニウム水溶液で洗浄後、無水硫酸ナトリウムで乾燥し、減圧下濃縮して無精製で表題化合物を得た。
収量 21.0g(89.7mmol) 収率 93%
MS (ESI, m/z) 235 [M+H]+
1H-NMR (CDCl3)δ1.26 (t, 3H), 1.72-1.86 (m, 2H), 1.97-2.05 (m, 2H), 2.49-2.58 (m, 1H), 2.93-3.02 (m, 2H), 3.82 (dt, 2H), 4.16 (q, 2H), 6.66 (dd, 2H), 8.25 (dd, 2H).
エチル 1-(ピリジン-4-イル)ピペリジン-4-カルボキシレート(1.00g,4.27mmol)の脱水THF溶液(4mL)を、水素化リチウムアルミニウム(113mg,2.99mmol)の脱水THF(10mL)懸濁液に氷冷下で滴下し、室温で3時間撹拌した。水素化リチウムアルミニウム(30mg)を加えて、更に室温で1時間撹拌した後、氷冷下、水(0.15mL)、15%水酸化ナトリウム水溶液(0.15mL)及び水(0.45mL)を順に加え、室温で一晩撹拌した。不溶物を濾別し、減圧下濃縮して無精製で表題化合物を得た。
収量 356mg(1.85mmol) 収率 43%
MS (ESI, m/z) 193 [M+H]+
1H-NMR (DMSO-d6)δ1.13 (qd, 2H), 1.55-1.75 (m, 3H), 2.79 (td, 2H), 3.26 (t, 2H), 3.88-3.95 (m, 2H), 4.48 (t, 1H), 6.77-6.79 (m, 2H), 8.09-8.12 (m, 2H).
[1-(ピリジン-4-イル)ピペリジン-4-イル]メタノール(55.5mg,0.288mmol)、2-(tert-ブトキシカルボニル)-1,2,3,4-テトラヒドロイソキノリン-7-カルボン酸(80.0mg,0.288mmol)及びHATU(110mg,0.288mmol)にDMF(1.9mL)を加え、室温で3日間撹拌した。減圧下濃縮した後、ジクロロメタンで希釈し、飽和炭酸水素ナトリウム水溶液及び飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥し、減圧下溶媒を留去して、無精製で表題化合物を得た。
収量 142mg(0.314mmol) 収率 定量的
MS (ESI, m/z) 452 [M+H]+
実施例1の工程4と同様の操作を、2-tert-ブチル 7-{[1-(ピリジン-4-イル)ピペリジン-4-イル]メチル} 3,4-ジヒドロイソキノリン-2,7(1H)-ジカルボキシレート(142mg,0.314mmol)を出発原料に用いて行い、表題化合物を得た。
収量 134mg(0.216mmol) 収率 75%
MS (ESI, m/z) 394 [M+H]+
1H-NMR (DMSO-d6)δ1.33 (q, 2H), 1.91 (d, 2H), 2.20 (br s, 1H), 3.00 (t, 2H), 3.21 (t, 2H), 3.63 (t, 2H), 4.19 (d, 2H), 4.28 (d, 2H), 4.66 (s, 2H), 7.21 (d, 2H), 7.41 (d, 1H), 7.54 (s, 4H), 7.76 (s, 1H), 7.84 (d, 1H), 8.22 (d, 2H), 13.36 (brs, 1H).
tert-ブチル 7-ヒドロキシ-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(1.00g,4.01mmol)のジクロロメタン溶液(20mL)に、氷冷下、2,6-ルチジン(0.56mL,4.81mmol)及びトリフルオロメタンスルホン酸無水物(0.742mL,4.41mmol)を加え、室温で3.5時間撹拌した。反応液に1N塩酸を加えた後、ジクロロメタンで抽出し、1N水酸化ナトリウム水溶液及び飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥し、減圧下濃縮して無精製で表題化合物を得た。
収量1.59g(4.17mmol) 収率 定量的
MS (ESI, m/z) 367 [(M-Me)+H]+
tert-ブチル 7-{[(トリフルオロメチル)スルホニル]オキシ}-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(1.50g,3.93mmol)のDMF溶液(20mL)に、エタノール(4mL)、テトラキス(トリフェニルホスフィン)パラジウム(0)(227mg,0.197mmol)及びジイソプロピルエチルアミン(1.37mL,7.86mmol)を加え、70℃、一酸化炭素雰囲気下で一晩撹拌した。不溶物を濾別した後、減圧下溶媒を留去して得られた残渣をシリカゲルクロマトグラフィー(ヘキサン:酢酸エチル 100:0~88:12)で精製し、表題化合物を得た。
収量 1.10g(3.60mmol) 収率 90%
MS (ESI, m/z) 291 [(M-Me)+H]+
1H-NMR (CDCl3)δ1.37 (t, 3H), 1.50 (s, 9H), 2.88 (t, 2H), 3.66 (t, 2H), 4.37 (q, 2H), 4.61 (s, 2H), 7.20 (d, 1H), 7.80-7.85 (m, 2H).
実施例2の工程2と同様の操作を、2-tert-ブチル 7-エチル 3,4-ジヒドロイソキノリン-2,7(1H)-ジカルボキシレート(300mg,0.982mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 232mg(0.881mmol) 収率 90%
MS (ESI, m/z) 249 [(M-Me)+H]+
1H-NMR (CDCl3)δ1.49 (s, 9H), 2.83 (t, 2H), 3.64 (t, 2H), 4.58 (s, 2H), 4.66 (d, 2H), 7.13-7.15 (m, 3H).
実施例2の工程3と同様の操作を、1-(ピリジン-4-イル)ピペリジン-4-カルボン酸(90.8mg,0.440mmol)及びtert-ブチル 7-(ヒドロキシメチル)-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(116mg,0.440mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 234mg(0.518mmol) 収率 定量的
MS (ESI, m/z) 452 [M+H]+
実施例1の工程4と同様の操作を、tert-ブチル 7-[({[1-(ピリジン-4-イル)ピペリジン-4-イル]カルボニル}オキシ)メチル]-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(234mg,0.518mmol)を出発原料に用いて行い、表題化合物を得た。
収量 189mg(0.304mmol) 収率 69%
MS (ESI, m/z) 394 [M+H]+
1H-NMR (DMSO-d6)δ1.54-1.68 (m, 2H), 1.96-2.03 (m, 2H), 2.80-2.93 (m, 3H), 3.25-3.35 (m, 2H), 3.60 (t, 2H), 4.10-4.18 (m, 2H), 4.57 (s, 2H), 5.10 (s, 2H), 7.15 (s, 1H), 7.20 (d, 2H), 7.25 (s, 2H), 7.50 (s, 4H), 8.22 (d, 2H).
4-(ピロリジン-1-イルカルボニル)安息香酸(263mg,1.20mmol)及びDCC(273mg,1.32mmol)に脱水ピリジン(4mL)を加えて、室温で30分間撹拌した後、tert-ブチル 7-ヒドロキシ-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(300mg,1.20mmol)を加えて、室温で一晩撹拌した。HOAt(81.7mg,0.60mmol)を加え、更に二晩撹拌した後、減圧下溶媒を留去した。得られた残渣を酢酸エチルで希釈し、1N塩酸、飽和炭酸水素ナトリウム水溶液及び飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥し、減圧下濃縮した。残渣をシリカゲルクロマトグラフィー(ヘキサン:酢酸エチル 98:2~20:80)で精製し、表題化合物を得た。
収量 156mg(0.346mmol) 収率 29%
MS (ESI, m/z) 451 [M+H]+
1H-NMR (CDCl3)δ1.49 (s, 9H), 1.89-2.02 (m, 2H), 2.83-2.87 (m, 2H), 3.39-3.43 (m, 2H), 3.66-3.70 (m, 4H), 4.60 (s, 2H), 6.98-7.04 (m, 2H), 7.18-7.21 (m, 1H), 7.62-7.66 (m, 2H), 8.21-8.25 (m, 2H).
実施例1の工程4と同様の操作を、tert-ブチル 7-{[4-(ピロリジン-1-イルカルボニル)ベンゾイル]オキシ}-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(154mg,0.342mmol)を出発原料に用いて行い、表題化合物を得た。
収量 64.5mg(0.127mmol) 収率 37%
MS (ESI, m/z) 393 [M+H]+
1H-NMR (DMSO-d6)δ1.82-1.92 (m, 4H), 2.94-2.97 (m, 2H), 3.36 (t, 2H), 3.50 (t, 2H), 3.64 (t, 2H), 4.61 (s, 2H), 7.12 (s, 1H), 7.20 (dd, 1H), 7.36 (d, 1H), 7.49 (s, 4H), 7.72 (d, 2H), 8.17 (d, 2H).
エチル 1-(ピリジン-4-イル)ピペリジン-4-カルボキシレート(1.0g,4.26mmol)をTHF(10mL)に溶解し、-78℃で1.8Mのリチウムジイソプロピルアミド(2.6mL)を滴下した。30分間撹拌した後、ベンジルオキシメチルクロリド(0.6mL,4.26mmol)を滴下した。室温にて2時間撹拌した後、常法に従い後処理し、中間体を得た。得られた中間体(200mg,約0.56mmol)を6N水酸化ナトリウム水溶液(2mL)、THF(2mL)、及びエタノール(1mL)に溶解し、50℃で一晩撹拌した。溶媒を留去した後、水(3mL)を加え、濃塩酸を用いて中和し、析出した固体を濾取又は酢酸エチルで抽出し、表題化合物を得た。
収量 120mg 収率 66%
MS (ESI, m/z) 327[M+H]+
1H-NMR(DMSO-d6)δ8.10 (d, 2H), 7.30-7.35 (m, 5H), 6.80 (d, 2H), 4.45 (s, 2H), 3.50-3.80 (m, 2H), 3.00-3.45 (m, 4H), 1.89-2.02 (m, 2H), 1.45-1.56 (m, 2H).
4-[(ベンジルオキシ)メチル]-1-(ピリジン-4-イル)ピペリジン-4-カルボン酸(57mg,0.18mmol)、tert-ブチル 7-ヒドロキシ-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(75mg,0.18mmol)、DCC(57mg,0.27mmol)、及びDMAP(42mg)をジクロロメタン(2mL)中で混合し、室温で終夜撹拌した。不溶物を濾別した後、溶媒を留去し、得られた残渣を実施例1の工程3と同様に逆相HPLCで精製し、表題化合物を得た。
収量 107mg 収率 定量的
MS (ESI, m/z) 458[M+H]+
実施例1の工程4と同様の操作を、tert-ブチル 7-[({4-[(ベンジルオキシ)メチル]-1-(ピリジン-4-イル)ピペリジン-4-イル}カルボニル)オキシ]-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(107mg)を用いて行い、表題化合物を得た。
収量 68.5mg 収率 77%
MS (ESI, m/z) 500[M+H]+
1H-NMR(D2O)δ8.05 (d, 2H), 7.43 (m, 5H) 7.35 (d, 1H), 7.05 (d, 2H), 6.97-6.94 (m, 1H), 6.87 (m, 1H), 4.66 (s, 2H), 4.55 (s, 2H), 4.04-3.96 (m, 2H), 3.85 (m, 2H), 3.66 (m, 2H), 3.65-3.47 (m, 2H), 3.04-2.99 (m, 2H), 2.46-2.41 (m, 2H), 1.91-1.78 (m, 2H).
実施例5の工程1と同様の操作を、ベンジルオキシメチルクロリドの代わりにメトキシメチルクロリドを用いて行って中間体を得、さらに実施例5の工程2から工程3と同様の操作を行うことで表題化合物を得た。
MS (ESI,m/z) 424[M+H]+
1H-NMR(D2O,300MHz)δ8.06 (d, 2H), 7.35 (d, 1H), 7.04 (d, 2H), 6.97-6.94 (m, 1H), 6.87 (m, 1H), 4.54 (s, 2H), 4.04-3.96 (m, 2H), 3.85 (m, 2H), 3.66 (m, 2H), 3.65-3.47 (m, 5H), 3.04-2.99 (m, 2H), 2.49-2.40 (m, 2H), 1.92-1.75 (m, 2H).
5-ブロモイソインドリン(1.78g,9.00mmol)のジクロロメタン溶液(45mL)にトリエチルアミン(1.25mL,9.00mmol)及びジtert-ブチル ジカーボネート(1.96g,9.00mmol)を氷冷下で加え、室温で2.5時間撹拌した。N,N-ジメチルエチルアミン(0.988mL,9.00mmol)を氷冷下で加え、室温で1時間撹拌した後、反応液に1N塩酸を加えた。ジクロロメタンで抽出し、1N塩酸、飽和炭酸水素ナトリウム水溶液及び飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥した。減圧下濃縮して得られた残渣をシリカゲルクロマトグラフィー(ヘキサン:酢酸エチル 100:0~92:8)で精製し、表題化合物を得た。
収量 1.72g(5.76mmol) 収率 64%
MS (ESI, m/z) 284 [(M-Me)+H]+
1H-NMR (CDCl3)δ1.51 (s, 9H), 4.59-4.67 (m, 4H), 7.08-7.15 (m, 1H), 7.36-7.42 (m, 2H).
実施例3の工程2と同様の操作を、tert-ブチル 5-ブロモ-1,3-ジヒドロ-2H-イソインドール-2-カルボキシレート(1.71g,5.73mmol)を出発原料に用いて行い、表題化合物を得た。
収量 609mg(2.09mmol) 収率 37%
1H-NMR (CDCl3)δ1.39-1.45 (m, 3H), 1.53-1.54 (m, 9H), 4.36-4.43 (m, 2H), 4.70-4.74 (m, 4H), 7.26-7.36 (m, 1H), 7.93-8.00 (m, 2H).
2-tert-ブチル 5-エチル 1,3-ジヒドロ-2H-イソインドール-2,5-ジカルボキシレート(300mg,1.03mmol)にTHF(1mL)及びエタノール(1mL)を加え、氷冷下で2M水酸化ナトリウム水溶液を加えた。室温で1.5時間撹拌した後、氷冷下で2N塩酸(1mL)を加え、減圧下濃縮した。酢酸エチルで希釈し、0.1N塩酸で洗浄後、無水硫酸ナトリウムで乾燥し、減圧下溶媒を留去して無精製で表題化合物を得た。
収量 283mg(1.07mmol) 収率 定量的
実施例2の工程3と同様の操作を、2-(tert-ブトキシカルボニル)イソインドリン-5-カルボン酸(138mg,0.526mmol)及び[1-(ピリジン-4-イル)ピペリジン-4-イル]メタノール(101mg,0.526mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 376mg 収率 定量的
MS (ESI, m/z) 438 [M+H]+
実施例1の工程4と同様の操作を、2-tert-ブチル 5-{[1-(ピリジン-4-イル)ピペリジン-4-イル]メチル} 1,3-ジヒドロ-2H-イソインドール-2,5-ジカルボキシレート(376mg,0.526mmol)を出発原料に用いて行い、表題化合物を得た。
収量 175mg(0.288mmol) 収率 55%
MS (ESI, m/z) 380 [M+H]+
1H-NMR (DMSO-d6)δ1.26-1.41 (m, 2H), 1.87-1.96 (m, 2H), 2.15-2.28 (m, 1H), 3.21 (t, 2H), 4.21 (d, 2H), 4.28 (d, 2H), 4.82 (s, 4H), 7.21 (d, 2H), 7.50-7.56 (m, 5H), 7.93-7.98 (m, 2H), 8.22 (d, 2H).
実施例2の工程2と同様の操作を、2-tert-ブチル 5-エチル 1,3-ジヒドロ-2H-イソインドール-2,5-ジカルボキシレート(300mg,1.03mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 247mg(0.991mmol) 収率 96%
MS (ESI, m/z) 250 [M+H]+
実施例2の工程3と同様の操作を、1-(ピリジン-4-イル)ピペリジン-4-カルボン酸(82.7mg,0.401mmol)及びtert-ブチル 5-(ヒドロキシメチル)-1,3-ジヒドロ-2H-イソインドール-2-カルボキシレート(100mg,0.401mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 214mg 収率 定量的
MS (ESI, m/z) 438 [M+H]+
実施例1の工程4と同様の操作を、tert-ブチル 5-[({[1-(ピリジン-4-イル)ピペリジン-4-イル]カルボニル}オキシ)メチル]-1,3-ジヒドロ-2H-イソインドール-2-カルボキシレート(214mg,0.401mmol)を出発原料に用いて行い、表題化合物を得た。
収量 143mg(0.288mmol) 収率 59%(2工程)
MS (ESI, m/z) 380 [M+H]+
1H-NMR (DMSO-d6)δ1.54-1.68 (m, 2H), 1.96-2.03 (m, 2H), 2.82-2.92 (m, 1H), 3.25-3.35 (m, 2H), 4.11-4.19 (m, 2H), 4.74 (s, 4H), 5.15 (s, 2H), 7.20 (d, 2H), 7.34-7.40 (m, 3H), 7.49 (s, 4H), 8.23 (d, 2H).
8-メトキシ-2,3,4,5-テトラヒドロ-1H-2-ベンズアゼピン-1-オン(1.01g,5.28mmol)の1,4-ジオキサン溶液(6mL)に、水素化リチウムアルミニウム(701mg,18.5mmol)のTHF懸濁液(12mL)を氷冷下滴下し、3.5時間加熱還流した。反応液を氷冷し、水(0.7mL)、15%水酸化ナトリウム水溶液(0.7mL)、及び水(2.1mL)を順に加え、室温で一晩撹拌した。不溶物を濾別後、減圧下で濃縮して得られた残渣に濃臭化水素酸(10mL)を加え、5時間加熱還流した。減圧下濃縮し、残渣にエタノール及びジエチルエーテルを加え、析出物を濾取して表題化合物を得た。
収量 1.06g(4.33mmol) 収率 82%
MS (ESI, m/z) 164 [M+H]+
2,3,4,5-テトラヒドロ-1H-2-ベンズアゼピン-8-オール 臭化水素酸塩(1.06g,4.33mmol)のジクロロメタン溶液(10mL)にトリエチルアミン(1.81mL,13.0mmol)及びジtert-ブチル ジカーボネート(945mg,4.33mmol)のジクロロメタン溶液(10mL)を氷冷下で加え、室温で1.5時間撹拌した。反応液に水を加え、ジクロロメタンで抽出し、0.1N塩酸、飽和炭酸水素ナトリウム水溶液及び飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥し、減圧下溶媒を留去した。得られた残渣をヘキサン及び酢酸エチルで洗浄し、析出物を濾取することにより表題化合物を得た。
収量 881mg(3.35mmol) 収率 77%
MS (ESI, m/z) 249 [(M-Me)+H]+
1H-NMR (CDCl3)δ1.40 (s, 9H), 1.68-1.74 (m, 2H), 2.84-2.88 (m, 2H), 3.66 (br s, 2H), 4.30-4.36 (m, 2H), 5.11 (br s, 1H), 6.61-6.65 (m, 1H), 6.70-6.85 (m, 1H), 6.99 (d, 1H).
実施例2の工程3と同様の操作を、1-(ピリジン-4-イル)ピペリジン-4-カルボン酸(47mg,0.228mmol)及びtert-ブチル 8-ヒドロキシ-1,3,4,5-テトラヒドロ-2H-2-ベンズアゼピン-2-カルボキシレート(60mg,0.228mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 119mg 収率 定量的
MS (ESI, m/z) 452 [M+H]+
実施例1の工程4と同様の操作を、tert-ブチル 8-({[(1-(ピリジン-4-イル)ピペリジン-4-イル]カルボニル}オキシ)-1,3,4,5-テトラヒドロ-2H-2-ベンズアゼピン-2-カルボキシレート(119mg,0.228mmol)を出発原料に用いて行い、表題化合物を得た。
収量 28.2mg(0.045mmol) 収率 20%(2工程)
MS (ESI, m/z) 394 [M+H]+
1H-NMR (DMSO-d6)δ1.68-1.81 (m, 4H), 2.09-2.18 (m, 2H), 2.96-3.02 (m, 2H), 3.07-3.15 (m, 1H), 3.35-3.43 (m, 2H), 3.71-3.77 (m, 2H), 4.16-4.26 (m, 2H), 4.63 (s, 2H), 7.00 (dd, 1H), 7.19-7.30 (m, 4H), 7.39 (s, 4H), 8.25 (d, 2H).
実施例3の工程1及び工程2と同様の操作を、tert-ブチル 8-ヒドロキシ-1,3,4,5-テトラヒドロ-2H-2-ベンズアゼピン-2-カルボキシレート(700mg,2.66mmol)を原料に用いて行い、表題化合物を得た。
収量 766mg(2.40mmol) 収率 90%
MS (ESI, m/z) 320 [M+H]+
1H-NMR (CDCl3)δ 1.36-1.41 (m, 12H), 1.78 (quint, 2H), 2.95-3.02 (m, 2H), 3.71 (br s, 2H), 4.33-4.48 (m, 4H), 7.21 (d, 1H), 7.83-7.96 (m, 2H).
実施例2の工程2と同様の操作を、エチル 2-(tert-ブトキシカルボニル)-2,3,4,5-テトラヒドロ-1H-2-ベンズアゼピン-8-カルボキシレート(407mg,1.27mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 319mg(1.15mmol) 収率 91%
1H-NMR (CDCl3)δ1.38 (s, 9H), 1.70-1.79 (m, 2H), 2.91-2.94 (m, 2H), 3.67 (br s, 2H), 4.36-4.41 (m, 2H), 4.64 (s, 2H), 7.10-7.26 (m, 3H).
実施例2の工程3と同様の操作を、1-(ピリジン-4-イル)ピペリジン-4-カルボン酸(60mg,0.291mmol)及びtert-ブチル 8-(ヒドロキシメチル)-1,3,4,5-テトラヒドロ-2H-2-ベンズアゼピン-2-カルボキシレート(80.7mg,0.291mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 165mg(0.518mmol) 収率 定量的
MS (ESI, m/z) 466 [M+H]+
実施例1の工程4と同様の操作を、tert-ブチル 8-[({[1-(ピリジン-4-イル)ピペリジン-4-イル]カルボニル}オキシ)メチル]-1,3,4,5-テトラヒドロ-2H-2-ベンズアゼピン-2-カルボキシレート(165mg,0.291mmol)を出発原料に用いて行い、表題化合物を得た。
収量 97mg(0.153mmol) 収率 52%
MS (ESI, m/z) 408 [M+H]+
1H-NMR (DMSO-d6)δ1.55-1.76 (m, 4H), 1.95-2.05 (m, 2H), 2.80-2.90 (m, 1H), 2.96-3.01 (m, 2H), 3.25-3.35 (m, 2H), 3.70-3.77 (m, 2H), 4.10-4.19 (m, 2H), 4.64 (s, 2H), 5.08 (s, 2H), 7,18-7.24 (m, 4H), 7.41 (s, 4H), 7.44 (s, 1H), 8.22 (d, 2H).
実施例7の工程3と同様の操作を、エチル 2-(tert-ブトキシカルボニル)-2,3,4,5-テトラヒドロ-1H-2-ベンズアゼピン-8-カルボキシレート(343mg,1.07mmol)を用いて行い、無精製で表題化合物を得た。
収量 266mg(0.913mmol) 収率 85%
MS (ESI, m/z) 292 [M+H]+
1H-NMR (CDCl3)δ1.40 (s, 9H), 1.80-1.82 (m, 2H), 2.98-3.06 (m, 2H), 3.73 (br s, 2H), 4.42-4.50 (m, 2H), 7.24-7.26 (m, 1H), 7.91-8.06 (m, 2H).
実施例2の工程3と同様の操作を、2-(tert-ブトキシカルボニル)-2,3,4,5-テトラヒドロ-1H-2-ベンズアゼピン-8-カルボン酸(86.2mg,0.296mmol)及び[1-(ピリジン-4-イル)ピペリジン-4-イル]メタノール(56.9mg,0.296mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 156mg 収率 定量的
MS (ESI, m/z) 466 [M+H]+
実施例1の工程4と同様の操作を、2-tert-ブチル 8-{[1-(ピリジン-4-イル)ピペリジン-4-イル]メチル} 1,3,4,5-テトラヒドロ-2H-2-ベンズアゼピン-2,8-ジカルボキシレート(156mg,0.296mmol)を出発原料に用いて行い、表題化合物を得た。
収量 73mg(0.115mmol) 収率 39%
MS (ESI, m/z) 408 [M+H]+
1H-NMR (DMSO-d6)δ1.26-11.40 (m, 2H), 1.61-1.68 (m, 2H), 1.87-1.96 (m, 2H), 2.12-2.26 (m, 1H), 3.04-3.10 (m, 2H), 3.21 (t, 2H), 3.72-3.79 (m, 2H), 4.18 (d, 2H), 4.27 (d, 2H), 4.73 (s, 2H), 7.21 (d, 2H), 7.40 (d, 2H), 7.44 (s, 4H), 7.82 (dd, 1H), 8.13 (d, 1H), 8.22 (d, 2H).
4-{[1-(tert-ブトキシカルボニル)ピペリジン-4-イル]オキシ}安息香酸(200mg,0.622mmol)、tert-ブチル 7-ヒドロキシ-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(155mg,0.622mmol)、DCC(141mg,0.684mmol)、及びDMAP(114mg,0.933mmol)をジクロロメタン(3.5mL)中で混合し、室温で一晩撹拌した。減圧下溶媒を留去し、酢酸エチルで希釈した後、0.1N塩酸、飽和炭酸水素ナトリウム水溶液、及び飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下濃縮して表題化合物を無精製で得た。
収量 390mg(0.705mmol) 収率 定量的
tert-ブチル 7-[(4-{[1-(tert-ブトキシカルボニル)ピペリジン-4-イル]オキシ}ベンゾイル)オキシ]-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(189mg,0.342mmol)の1,4-ジオキサン溶液(1.5mL)に4N塩酸/1,4-ジオキサン溶液(6mL)を加え、室温で3時間撹拌した。減圧下溶媒を留去して得られた残渣をDMF(3mL)に溶解し、1H-ピラゾール-1-カルボキサミジン塩酸塩(122mg,0.832mmol)、及びジイソプロピルエチルアミン(0.381mL,2.19mmol)を加え、室温で一晩撹拌した。1H-ピラゾール-1-カルボキサミジン塩酸塩(50mg,0.342mmol)、及びジイソプロピルエチルアミン(0.120mL,0.684mmol)を加え、室温で4時間撹拌した後、1H-ピラゾール-1-カルボキサミジン塩酸塩(100mg,0.684mmol)、及びジイソプロピルエチルアミン(0.120mL,0.684mmol)を加え、室温で2時間、続いて40℃で0.5時間撹拌した。減圧下濃縮して得られた残渣を実施例1の工程3と同様に逆相HPLCで精製し、表題化合物を得た。
収量 86mg(0.129mmol) 収率 43%
MS (ESI, m/z) 219 [M+H]2+
1H-NMR (DMSO-d6)δ1.66-1.74 (m, 2H), 2.02-2.11 (m, 2H), 2.93-2.96 (m, 2H), 3.34-3.45 (m, 2H), 3.62-3.72 (m, 4H), 4.60 (s, 2H), 4.81-4.88 (m, 1H), 7.06-7.21 (m, 4H), 7.34 (d, 1H), 7.46 (s, 4H), 7.52 (s, 4H), 8.07 (d, 2H).
tert-ブチル 7-[(4-{[1-(tert-ブトキシカルボニル)ピペリジン-4-イル]オキシ}ベンゾイル)オキシ]-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(201mg,0.363mmol)の1,4-ジオキサン溶液(1.5mL)に4N塩酸/1,4-ジオキサン溶液(6mL)を加え、室温で3時間撹拌した。減圧下溶媒を留去して得られた残渣を脱水エタノール(3mL)に溶解し、エチル アセトイミダート塩酸塩(108mg,0.874mmol)、及びジイソプロピルエチルアミン(0.405mL,2.32mmol)を加え、室温で一晩撹拌した。減圧下濃縮して得られた残渣を実施例1の工程3と同様に逆相HPLCで精製し、表題化合物を得た。
収量 132mg(0.199mmol) 収率 62%
MS (ESI, m/z) 218 [M+H]2+
1H-NMR (DMSO-d6)δ1.75-1.88 (m, 2H), 2.07-2.18 (m, 2H), 2.30 (s, 3H), 2.38 (d, 3H), 3.00 (q, 2H), 3.52-3.60 (m, 2H), 3.68 (t, 2H), 3.75-3.82 (m, 2H), 4.73 (d, 2H), 4.86-4.93 (m, 1H), 7.06-7.22 (m, 4H), 7.37 (dd, 1H), 8.08 (dd, 2H), 8.63 (s, 1H), 8.67 (d, 1H), 9.17 (s, 1H), 9.26 (d, 1H).
4-({1-[(ベンジルオキシ)カルボニル]ピペリジン-4-イル}オキシ)安息香酸(170mg,0.478mmol)、tert-ブチル 7-ヒドロキシ-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(119mg,0.478mmol)、DCC(109mg,0.526mmol)、及びDMAP(87.6mg,0.717mmol)をジクロロメタン(2.5mL)中で混合し、室温で一晩撹拌した。不溶物を濾別後、減圧下濃縮した残渣を酢酸エチルで希釈し、飽和炭酸水素ナトリウム水溶液及び飽和塩化アンモニウム水溶液で洗浄した。無水硫酸マグネシウムで乾燥後、減圧下濃縮して得られた残渣を1,4-ジオキサン(2.5mL)に溶解し、4N塩酸/1,4-ジオキサン溶液(7.5mL)を加えて室温で4.5時間撹拌した。減圧下溶媒を留去し、DMF(5mL)、1H-ピラゾール-1-カルボキサミジン塩酸塩(84.3mg,0.575mmol)、及びジイソプロピルエチルアミン(0.250mL,6.26mmol)を加え、室温で一晩撹拌した。1H-ピラゾール-1-カルボキサミジン塩酸塩(35mg,0.240mmol)、及びジイソプロピルエチルアミン(0.042mL,0.240mmol)を加え、室温で1.5時間撹拌した後、減圧下溶媒を留去して得られた残渣を実施例1の工程3と同様に逆相HPLCで精製し、表題化合物を得た。
収量 170mg(0.265mmol) 収率 55%
MS (ESI, m/z) 529 [M+H]+
1H-NMR (DMSO-d6)δ1.55-1.67 (m, 2H), 1.94-2.03 (m, 2H), 2.94 (t, 2H), 3.28-3.37 (m, 2H), 3.63 (t, 2H), 3.71-3.79 (m, 2H), 4.60 (s, 2H), 4.74-4.82 (m, 1H), 5.10 (s, 2H), 7.06-7.19 (m, 4H), 7.31-7.39 (m, 6H), 7.46 (br s, 4H), 8.06 (d, 2H).
ベンジル 4-{4-[({2-[アミノ(イミノ)メチル]-1,2,3,4-テトラヒドロイソキノリン-7-イル}オキシ)カルボニル]フェノキシ}ピペリジン-1-カルボキシレート トリフルオロ酢酸塩(166mg,0.258mmol)の酢酸溶液(5mL)に10%パラジウム/炭素(20mg)を加え、室温、水素雰囲気下にて2時間撹拌した。不溶物を濾別後、減圧下溶媒を留去して得られた残渣にエチル アセトイミダート塩酸塩(38.3mg,0.310mmol)、脱水エタノール(2.5mL)、DMF(2.5mL)、及びジイソプロピルエチルアミン(0.225mL,1.29mmol)を加え、室温で4時間撹拌した。減圧下濃縮して得られた残渣を実施例1の工程3と同様に逆相HPLCで精製し、表題化合物を得た。
収量 109mg(0.164mmol) 収率 64%
MS (ESI, m/z) 436 [M+H]+
1H-NMR (DMSO-d6)δ1.73-1.88 (m, 2H), 2.06-2.18 (m, 2H), 2.30 (s, 3H), 2.94 (t, 2H), 3.51-3.66 (m, 4H), 3.73-3.85 (m, 2H), 4.60 (s, 2H), 4.86-4.94 (m, 1H), 7.06 (d, 1H), 7.14 (dd, 1H), 7.20 (d, 2H), 7.34 (d, 1H), 7.52 (s, 4H), 8.08 (d, 2H), 8.63 (s, 1H), 9.18 (s, 1H).
実施例2の工程2と同様の操作を、ベンジル 4-[4-(メトキシカルボニル)フェノキシ]ピペリジン-1-カルボキシレート(719mg,1.95mmol)を出発原料に用いて行い、無精製で表題化合物を得た。
収量 455mg(1.33mmol) 収率 68%
1H-NMR (DMSO-d6)δ1.72-1.84 (m, 2H), 1.86-1.98 (m, 2H), 3.42-3.51 (m, 2H), 3.70-3.79 (m, 2H), 4.49 (sept, 1H), 4.62 (d, 2H), 5.14 (s, 2H), 6.87-6.92 (m, 2H), 7.26-7.37 (m, 7H).
実施例14の工程1と同様の操作を、ベンジル 4-[4-(ヒドロキシメチル)フェノキシ]ピペリジン-1-カルボキシレート(90mg,0.263mmol)、及び2-(tert-ブトキシカルボニル)-1,2,3,4-テトラヒドロイソキノリン-7-カルボン酸(73mg,0.263mmol)を出発原料に用いて行い、表題化合物を得た。
収量 47mg(0.0716mmol) 収率 27%
MS (ESI, m/z) 543 [M+H]+
実施例14の工程2と同様の操作を、4-({1-[(ベンジルオキシ)カルボニル]ピペリジン-4-イル}オキシ)ベンジル 2-[アミノ(イミノ)メチル]-1,2,3,4-テトラヒドロイソキノリン-7-カルボキシレート トリフルオロ酢酸塩(61mg,0.0929mmol)を原料に用いて行い、表題化合物を得た。
収量 42mg(0.0615mmol) 収率 66%
MS (ESI, m/z) 450 [M+H]+
1H-NMR (DMSO-d6)δ1.68-1.84 (m, 2H), 2.00-2.12 (m, 2H), 2.29 (s, 3H), 2.99 (t, 2H), 3.48-3.58 (m, 2H), 3.63 (t, 2H), 3.69-3.81 (m, 2H), 4.65 (s, 2H), 4.68-4.77 (m, 1H), 5.28 (s, 2H), 7.04 (d, 2H), 7.39-7.43 (m, 3H), 7.48 (s, 4H), 7.75 (m, 1H), 7.82-7.85 (m, 1H), 8.59 (br s, 1H), 9.13 (br s, 1H).
実施例14の工程1と同様の操作を、4-({1-[(ベンジルオキシ)カルボニル]ピペリジン-4-イル}オキシ)安息香酸(181mg,0.509mmol)、及びtert-ブチル 7-(ヒドロキシメチル)-3,4-ジヒドロイソキノリン-2(1H)-カルボキシレート(134mg,0.509mmol)を出発原料に用いて行い、表題化合物を得た。
収量 229mg(0.349mmol) 収率 68%
MS (ESI, m/z) 543 [M+H]+
1H-NMR (DMSO-d6)δ1.52-1.65 (m, 2H), 1.90-2.01 (m, 2H), 2.91 (t, 2H), 3.24-3.37 (m, 2H), 3.60 (t, 2H), 3.67-3.78 (m, 2H), 4.58 (s, 2H), 4.68-4.77 (m, 1H), 5.09 (s, 2H), 5.30 (s, 2H), 7.09 (d, 2H), 7.22-7.36 (m, 8H), 7.43 (s, 4H), 7.92 (d, 2H).
実施例14の工程2と同様の操作を、ベンジル 4-{4-[({2-[アミノ(イミノ)メチル]-1,2,3,4-テトラヒドロイソキノリン-7-イル}メトキシ)カルボニル]フェノキシ}ピペリジン-1-カルボキシレート トリフルオロ酢酸塩(225mg,0.343mmol)を原料に用いて行い、表題化合物を得た。
収量 34.3mg(0.0506mmol) 収率 15%
MS (ESI, m/z) 450 [M+H]+
1H-NMR (DMSO-d6)δ 1.71-1.86 (m, 2H), 2.03-2.16 (m, 2H), 2.29 (s, 3H), 2.92 (t, 2H), 3.48-3.64 (m, 4H), 4.58 (s, 2H), 4.80-4.88 (m, 1H), 5.31 (s, 2H), 7.12 (d, 2H), 7.23-7.35 (m, 3H), 7.49 (s, 4H), 7.94 (d, 2H), 8.61 (s, 1H), 9.16 (s, 1H).
2-ベンジルオキシ酢酸(0.10mL,0.72mmol)、HOAt(117mg,0.86mmol)、及びHATU(330mg,0.86mmol)をDMF(1mL)、及びトリエチルアミン(0.15mL,1.1mmol)に溶解し、5分間撹拌した。そこへtert-ブチル N-(2-アミノ-4-シアノフェニル)グリシネート(178mg,0.72mmol)を加え、終夜撹拌した。酢酸エチル及び1N水酸化ナトリウム水溶液を用いて後処理した後、飽和食塩水で洗浄、無水硫酸ナトリウムで乾燥し、溶媒を留去して、残渣を実施例1の工程3と同様に逆相HPLCで精製し、表題化合物を得た。
収量 180mg 収率 61%
MS (ESI, m/z) 396 [M+H]+
tert-ブチル N-(2-{[(ベンジルオキシ)アセチル]アミノ}-4-シアノフェニル)グリシネート(0.12g,0.37mmol)を酢酸(10mL)に溶解し、90℃で終夜撹拌した。溶媒を留去した後、トリフルオロ酢酸(5mL)を加え、2時間撹拌した。溶媒を留去した後、水を加え、凍結乾燥し、中間体を得た。得られた中間体、HOAt(61mg,0.45mmol)、及びHATU(170mg,0.45mmol)をDMF(2mL)、及びトリエチルアミン(0.1mL,0.73mmol)に溶解し、5分間撹拌した。そこへシクロヘキシルアミン(0.043mL,0.37mmol)を加え、終夜撹拌した。常法に従い後処理した後、溶媒を留去した。得られた化合物を4N塩酸/1,4-ジオキサン溶液(4.5mL)、及びエタノール(0.5mL)に溶解し、終夜撹拌した。溶媒を留去した後、エタノール(5mL)、及び炭酸アンモニウム(0.12g,1.25mmol)を加え、終夜撹拌した。不溶物を濾過した後、溶媒を留去し、得られた化合物をエタノール(10mL)に溶解した。触媒量の10%Pd/炭素を加え、水素雰囲気下で終夜撹拌した。触媒を濾別後、溶媒を留去し、中間体を得た。
ジクロロメタン(1mL)、DMF(0.5mL)、及びオキシ塩化リン(0.005mL,0.05mmol)を0℃で混合し、10分間撹拌した。そこへ1-(ピリジン-4-イル)ピペリジン-4-カルボン酸(9mg,0.045mmol)を加え、10分間撹拌した。そこへ先の中間体のDMF溶液(1mL)を加え、終夜撹拌した。溶媒を留去し、残渣を実施例1の工程3と同様に逆相HPLCで精製し、表題化合物を得た。
収量 2.0mg 収率 6%
MS (ESI, m/z) 518 [M+H]+
96穴プレート(#3396、Costar社)を用い、0.02% Tween20、0.1% PEG6000、0.2M NaClを含む100 mM Tris-HCl緩衝液(130μL)に、0.015 U/ml FXa(10μL)と被験化合物(10μL)を10分間混和させた後、発色基質0.2 mM S-2222(50μL)を添加した。マイクロプレートリーダーBenchmark Plus(BIO-RAD社)を用いて、吸光度405 nmの経時変化から反応速度を測定した。コントロールの反応速度を100%とし、コントロールの反応速度が50%抑えられる濃度の負の対数値をpIC50値とした。結果を表2中pIC50(FXa)に示す。
96穴プレート(#3396、Costar社)を用い、0.02% Tween20、0.1% PEG6000、0.2M NaClを含む100 mM Tris-HCl緩衝液(130μL)に、0.125 U/mL活性化第IIa因子(トロンビン)(10μL)と被験化合物(10μL)を10分間混和させた後、発色基質0.1 mM S-2238(50μL)を添加した。マイクロプレートリーダーBenchmark Plus(BIO-RAD社)を用いて、吸光度405 nmの経時変化から反応速度を測定した。コントロールの反応速度を100%とし、コントロールの反応速度が50%抑えられる濃度の負の対数値をpIC50値とした。結果を表2中pIC50(IIa)に示す。
本試験は、全自動血液凝固時間測定装置Sysmex CA-1500を用いたaPTT測定法に準じた。サンプルチューブ(MS-18、日本メディカルサイエンス)に10 mg/ml DDVP溶液(DDVP標準品、Wako社)(4μL)、及び被験化合物の溶液(20μL)を入れ、ヒト血漿(血液凝固試験用標準ヒト血漿、GCH-100A、Sysmex社)(180μL)を加えたものを被検サンプルとした。被検サンプル(50μL)を37℃で1分間保温し、データファイ・APTT(ウサギ脳由来セファリン、DADE Behiring社)(50μL)を添加し、さらに37℃で2分間保温した。そのサンプル溶液に0.02M 塩化カルシウム(50μL)を添加し、血漿が凝固するまでの時間を自動測定した。
抗血液凝固活性はコントロールのaPTTを2倍に延長する濃度の負の対数値をpaPTT2として示した。結果を表2に示す。
ヒト血漿(495μL)に100μg/mLに調製した被験化合物の溶液(5μL)を添加し(最終薬液濃度1μg/mL)、37℃でインキュベートした。薬液添加後0分、2分、5分、10分、30分、60分に50μLずつサンプリングし、アセトニトリル(100μL)を添加、混和し、反応を停止させた。反応を停止後、15000回転、5分間の遠心操作にて除蛋白処理を行い、遠心上清(20μL)を100 mmol/Lギ酸アンモニウム溶液(pH4)(180μL)にて希釈し、LC/MS/MSにて測定を行った。
薬液添加後2分値が定量限界未満の場合は、以下の方法で半減期を算出した。
すなわち、0分値を理論濃度(1000 ng/mL)、2分値を定量下限濃度とし、その2点の対数変換値を結ぶ直線の傾きから半減期(T1/2)を算出した。結果を表2に示す。
Claims (18)
- 下記の式(1)で表されるアミジン誘導体又はその医薬的に許容しうる塩:
〈式(1)中、
Xは炭素数1~6のアルキル基又はアミノ基を示し、
V1は水素原子、水酸基、ハロゲン原子、置換基を有していてもよい炭素数1~10のアルキル基、置換基を有していてもよい炭素数1~10のアルコキシ基、置換基を有していてもよい炭素数1~10のアルキルアミノ基、炭素数2~8の含窒素脂肪族複素環基、置換基を有していてもよい炭素数1~10のアルキルチオ基、シアノ基、ニトロ基、カルボキシル基、置換基を有していてもよいカルバモイル基又は置換基を有していてもよい炭素数2~10のアルコキシカルボニル基を示し、
nは0~2の整数を示し、
R1は下記式(2-1)又は(2-2)で表される基を示す。
[式(2-1)、(2-2)中、
mは0~2の整数を示し、
R2は下記式(3)で表される基を示す。
{式(3)中、
kは0~2の整数を示し、
環Aは炭素数6~10のアリール基、炭素数1~10のヘテロアリール基、炭素数2~8の含窒素脂肪族複素環基又は炭素数3~10のシクロアルキル基を示し、
V2は水素原子、水酸基、ハロゲン原子、置換基を有していてもよい炭素数1~10のアルキル基、置換基を有していてもよい炭素数1~10のアルコキシ基、置換基を有していてもよい炭素数1~10のアルキルアミノ基、炭素数2~8の含窒素脂肪族複素環基、置換基を有していてもよい炭素数1~10のアルキルチオ基、シアノ基、ニトロ基、カルボキシル基、置換基を有していてもよいカルバモイル基又は置換基を有していてもよい炭素数2~10のアルコキシカルボニル基を示し、
Wは炭素数1~6のアルキル基で置換されていてもよいアミジノ基、炭素数1~6のアルキル基で置換されていてもよいグアニジノ基、1位にイミノ基を有していてもよい炭素数1~6のアルキル基又は下記式(4)で表される基を示す。
(式(4)中、
環Bは炭素数1~10のヘテロアリール基、又は炭素数2~8の含窒素脂肪族複素環基を示し、
Y1は単結合、炭素数1~6のアルキル基で置換されていてもよい-NH-、酸素原子、硫黄原子、メチレン基、又は-CO-を示し、
Zは水素原子、ハロゲン原子、炭素数1~6のアルキル基で置換されていてもよいアミジノ基、炭素数1~6のアルキル基で置換されていてもよいグアニジノ基、又は1位にイミノ基を有していてもよい炭素数1~6のアルキル基を示す。)}]〉。 - 式(3)において、
環Aがフェニル基、ピリジル基、チオフェニル基、ピペリジル基又はピペラジニル基であり、
V2が水素原子、ハロゲン原子、炭素数1~6のアルキル基、カルボキシル基、置換基を有していてもよい炭素数1~6のアルコキシ基、又は置換基を有していてもよい炭素数2~10のアルコキシカルボニル基である、請求項2記載のアミジン誘導体又はその医薬的に許容しうる塩。 - 式(3)において、
Wが式(4)で表される基であり、
環Bが炭素数2~8の含窒素脂肪族複素環基であり、
Y1が酸素原子、硫黄原子又はメチレン基であり、
Zが水素原子、ハロゲン原子、アミジノ基、又は1位にイミノ基を有していてもよい炭素数1~6のアルキル基である、請求項3記載のアミジン誘導体又はその医薬的に許容しうる塩。 - 式(3)において、
Wが式(4)で表される基であり、
環Bがピリジル基であり、
Y1が単結合である、請求項3記載のアミジン誘導体又はその医薬的に許容しうる塩。 - 下記の式(5)で表されるアミジン誘導体又はその医薬的に許容しうる塩:
[式(5)中、
V3は水素原子又は下記式(6)で表される基を示し、
{式(6)中、
R3は水素原子、置換基を有していてもよい炭素数1~6のアルキル基、置換基を有していてもよい炭素数3~10のシクロアルキル基、カルボキシル基、炭素数2~7のアルコキシカルボニル基、置換基を有していてもよい炭素数6~10のアリール基、置換基を有していてもよいヘテロアリール基、又は炭素数2~8の飽和の含窒素脂肪族複素環基を示し、
Y2は酸素原子、-CO-、-CO2-、-SO2-、-CONH-又は-CH=CH-を示し、
Y3は-(CH2)i-又は-(CH2)i’-CUU’-(CH2)i”-(ここで、U及びU’は同一又は異なって、それぞれ水素原子、又は炭素数1~6のアルキル基を示し、i、i’ 及びi”は独立して、それぞれ0~3の整数を示す)を示し、
jは0~3の整数を示す。}
R1は請求項1と同義である。]。 - 式(5)において、
V3が式(6)で表される基であり、
式(3)において、
環Aがフェニル基、ピリジル基、チオフェニル基、ピペリジル基又はピペラジニル基であり、
V2が水素原子、ハロゲン原子、炭素数1~6のアルキル基、カルボキシル基、置換基を有していてもよい炭素数1~6のアルコキシ基、又は置換基を有していてもよい炭素数2~10のアルコキシカルボニル基である、請求項6記載のアミジン誘導体又はその医薬的に許容しうる塩。 - 式(5)において、
V3が式(6)で表される基であり、
式(3)において、
Wが式(4)で表される基であり、
環Bが炭素数2~8の含窒素脂肪族複素環基であり、
Y1が酸素原子、硫黄原子又はメチレン基であり、
Zが水素原子、アミジノ基、又は1位にイミノ基を有していてもよい炭素数1~6のアルキル基である、請求項7記載のアミジン誘導体又はその医薬的に許容しうる塩。 - 式(5)において、
V3が式(6)で表される基であり、
式(3)において、
Wが式(4)で表される基であり、
環Bがピリジル基であり、
Y1が単結合である、請求項7記載のアミジン誘導体又はその医薬的に許容しうる塩。 - 請求項1~9のいずれか1項記載のアミジン誘導体又はその医薬的に許容しうる塩を含有する活性化血液凝固第X因子阻害剤。
- 請求項1~9のいずれか1項記載のアミジン誘導体又はその医薬的に許容しうる塩を含有する医薬組成物。
- 抗血液凝固薬である、請求項11記載の医薬組成物。
- 血液体外循環回路用の抗血液凝固薬である、請求項12記載の医薬組成物。
- 血液透析用の抗血液凝固薬である、請求項12記載の医薬組成物。
- 請求項1~9のいずれか1項記載のアミジン誘導体又はその医薬的に許容しうる塩を含有する透析液あるいは透析液濃縮物。
- 低分子FXa阻害剤を有効成分として含有する血液体外循環回路用の抗血液凝固薬。
- 低分子FXa阻害剤が、血液中からの消失が速やかである、請求項16記載の血液体外循環回路用の抗血液凝固薬。
- 低分子FXa阻害剤がFXa選択的阻害剤である、請求項17記載の血液体外循環回路用の抗血液凝固薬。
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WO2006083003A1 (ja) | 2005-02-02 | 2006-08-10 | Ajinomoto Co., Inc. | 新規ベンズアミジン化合物 |
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EP2311810A1 (en) | 2011-04-20 |
EP2311810A4 (en) | 2012-04-04 |
JPWO2010005087A1 (ja) | 2012-01-05 |
US20110172416A1 (en) | 2011-07-14 |
KR20110036833A (ko) | 2011-04-11 |
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