WO2006051312A1 - Gastrin and cholecystokinin receptor ligands - Google Patents
Gastrin and cholecystokinin receptor ligands Download PDFInfo
- Publication number
- WO2006051312A1 WO2006051312A1 PCT/GB2005/004359 GB2005004359W WO2006051312A1 WO 2006051312 A1 WO2006051312 A1 WO 2006051312A1 GB 2005004359 W GB2005004359 W GB 2005004359W WO 2006051312 A1 WO2006051312 A1 WO 2006051312A1
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- WO
- WIPO (PCT)
- Prior art keywords
- alkyl
- oxo
- phenyl
- amino
- dihydro
- Prior art date
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- AOXOCDRNSPFDPE-UKEONUMOSA-N chembl413654 Chemical compound C([C@H](C(=O)NCC(=O)N[C@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@H](CCSC)C(=O)N[C@H](CC(O)=O)C(=O)N[C@H](CC=1C=CC=CC=1)C(N)=O)NC(=O)[C@@H](C)NC(=O)[C@@H](CCC(O)=O)NC(=O)[C@@H](CCC(O)=O)NC(=O)[C@@H](CCC(O)=O)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC=1C2=CC=CC=C2NC=1)NC(=O)[C@H]1N(CCC1)C(=O)CNC(=O)[C@@H](N)CCC(O)=O)C1=CC=C(O)C=C1 AOXOCDRNSPFDPE-UKEONUMOSA-N 0.000 title claims abstract description 39
- 102000004859 Cholecystokinin Receptors Human genes 0.000 title description 23
- 108090001085 Cholecystokinin Receptors Proteins 0.000 title description 23
- 239000003446 ligand Substances 0.000 title description 22
- 108010089448 Cholecystokinin B Receptor Proteins 0.000 title description 21
- 102000052874 Gastrin receptors Human genes 0.000 title description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 90
- 108010052343 Gastrins Proteins 0.000 claims abstract description 22
- 102100021022 Gastrin Human genes 0.000 claims abstract 5
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 226
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 58
- -1 formyloxy, formamido Chemical group 0.000 claims description 56
- 238000002360 preparation method Methods 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 41
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 38
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims description 36
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 35
- 229940126409 proton pump inhibitor Drugs 0.000 claims description 29
- 239000000203 mixture Substances 0.000 claims description 25
- 239000000612 proton pump inhibitor Substances 0.000 claims description 24
- 125000000217 alkyl group Chemical group 0.000 claims description 22
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 19
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 17
- 125000004076 pyridyl group Chemical group 0.000 claims description 17
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- 125000004356 hydroxy functional group Chemical group O* 0.000 claims description 16
- 125000000335 thiazolyl group Chemical group 0.000 claims description 16
- 125000004397 aminosulfonyl group Chemical group NS(=O)(=O)* 0.000 claims description 15
- 239000003814 drug Substances 0.000 claims description 15
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 claims description 14
- 208000018522 Gastrointestinal disease Diseases 0.000 claims description 13
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 13
- 125000002541 furyl group Chemical group 0.000 claims description 13
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- 125000000719 pyrrolidinyl group Chemical group 0.000 claims description 12
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- 125000006539 C12 alkyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 11
- 239000004480 active ingredient Substances 0.000 claims description 11
- 125000005708 carbonyloxy group Chemical group [*:2]OC([*:1])=O 0.000 claims description 11
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims description 11
- 125000002883 imidazolyl group Chemical group 0.000 claims description 11
- 125000004594 isoindolinyl group Chemical group C1(NCC2=CC=CC=C12)* 0.000 claims description 11
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- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims description 3
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 claims description 3
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 claims description 3
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- 229950004864 olamine Drugs 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 229940006093 opthalmologic coloring agent diagnostic Drugs 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000007248 oxidative elimination reaction Methods 0.000 description 1
- 239000004031 partial agonist Substances 0.000 description 1
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- 235000019371 penicillin G benzathine Nutrition 0.000 description 1
- 229960000444 pentagastrin Drugs 0.000 description 1
- ANRIQLNBZQLTFV-DZUOILHNSA-N pentagastrin Chemical compound C([C@H](NC(=O)[C@H](CC(O)=O)NC(=O)[C@@H](NC(=O)[C@H](CC=1[C]2C=CC=CC2=NC=1)NC(=O)CCNC(=O)OC(C)(C)C)CCSC)C(N)=O)C1=CC=CC=C1 ANRIQLNBZQLTFV-DZUOILHNSA-N 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002571 phosphodiesterase inhibitor Substances 0.000 description 1
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- 108700035912 polaprezinc Proteins 0.000 description 1
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 description 1
- 229910000343 potassium bisulfate Inorganic materials 0.000 description 1
- MFDFERRIHVXMIY-UHFFFAOYSA-N procaine Chemical compound CCN(CC)CCOC(=O)C1=CC=C(N)C=C1 MFDFERRIHVXMIY-UHFFFAOYSA-N 0.000 description 1
- 229960004919 procaine Drugs 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 108010018095 pumilacidin Proteins 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 239000002287 radioligand Substances 0.000 description 1
- 230000003893 regulation of appetite Effects 0.000 description 1
- 125000006413 ring segment Chemical group 0.000 description 1
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 description 1
- KAMPZSDPZUILHH-UHFFFAOYSA-N s-[[3-methyl-4-(2,2,2-trifluoroethoxy)pyridin-2-yl]methyl]thiohydroxylamine Chemical compound CC1=C(CSN)N=CC=C1OCC(F)(F)F KAMPZSDPZUILHH-UHFFFAOYSA-N 0.000 description 1
- MOODSJOROWROTO-UHFFFAOYSA-N salicylsulfuric acid Chemical compound OC(=O)C1=CC=CC=C1OS(O)(=O)=O MOODSJOROWROTO-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
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- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- 239000008107 starch Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000021 stimulant Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 229940071103 sulfosalicylate Drugs 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 150000003509 tertiary alcohols Chemical class 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 238000011200 topical administration Methods 0.000 description 1
- 230000002936 tranquilizing effect Effects 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- IHTCZSNKQINGDD-UHFFFAOYSA-M trimethyl-[(5-methylfuran-2-yl)methyl]azanium;iodide Chemical compound [I-].CC1=CC=C(C[N+](C)(C)C)O1 IHTCZSNKQINGDD-UHFFFAOYSA-M 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 229960000281 trometamol Drugs 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- A61K31/55—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
- A61K31/551—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole having two nitrogen atoms, e.g. dilazep
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
- C07D243/02—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 2
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
- C07D243/06—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4
- C07D243/10—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
Definitions
- This invention relates to gastrin and cholecystokinin (CCK) receptor ligands.
- CCK cholecystokinin receptor ligands.
- the receptor previously known as the CCK ⁇ /gastrin receptor is now termed the CCK 2 receptor.
- the invention further relates to pharmaceutical compositions comprising such ligands and methods for preparing such pharmaceutical compositions.
- Gastrin and the cholecystokinins are structurally related neuropeptides which exist in gastrointestinal tissue and the central nervous system (Mutt V., Gastrointestinal Hormones, Glass G.B.J., ed., Raven Press, New York, p. 169; Nisson G., ibid., p. 127).
- Gastrin is one of the three primary stimulants of gastric acid secretion.
- Several forms of gastrin are found including 34-, 17- and 14-amino acid species with the minimum active fragment being the C-terminal tetrapeptide (TrpMetAspPhe-NH 2 ) which is reported in the literature to have full pharmacological activity (Tracy HJ. and Gregory R.A., Nature (London), 1964, 204, 935).
- Much effort has been devoted to the synthesis of analogues of this tetrapeptide (and the N-protected derivative Boc-TrpMetAspPhe-NH 2 ) in an attempt to elucidate the relationship between structure and activity.
- Natural cholecystokinin is a 33 amino acid peptide (CCK-33), the C-terminal 5 amino acids of which are identical to those of gastrin. Also found naturally is the C-terminal octapeptide (CCK-8) of CCK-33.
- cholecystokinins are reported to be important in the regulation of appetite. They stimulate intestinal mobility, gall bladder contraction, pancreatic enzyme secretion and are known to have a trophic action on the pancreas. They also inhibit gastric emptying and have various effects in the central nervous system.
- ligands Compounds which bind to cholecystokinin and/or gastrin receptors are important because of their potential pharmaceutical use as antagonists, inverse agonists or partial agonists of the natural peptides. Such compounds are described herein as ligands.
- the term ligand as used herein means either an antagonist, partial or full agonist, or an inverse agonist. Usually, the term ligand refers to an antagonist.
- gastrin ligands have been proposed for various therapeutic applications, including the prevention of gastrin-related disorders including gastrointestinal ulcers, dyspepsia, reflux oesophagitis (gastroesophageal reflux disease (GERD), both erosive and non-erosive) by reduction in gastric acid secretion and/or improving impaired motor activity at the lower oesophageal sphincter, Zollinger-EUison syndrome, Barrett's oesophagus (specialized intestinal metaplasia of distal oesophagus), ECL cell hyperplasia, rebound hypersecretion (following cessation of anti-secretory therapy), ECL-derived gastric polyps most commonly found in patients with atrophic gastritis both with (pernicious anaemia) or without vitamin Bl 2 deficiency, antral G cell hyperplasia and other conditions in which lower gastrin activity or lower acid secretion is desirable.
- GFD gastroesophageal reflux
- the hormone has also been shown to have a trophic action on cells and so an antagonist may be expected to be useful in the treatment of cancers, particularly in the GI tract, more particularly in the stomach, oesophagus and colo-rectal areas.
- Tumours found in other organs such as the pancreas, lung (small cell lung carcinomas) and thyroid (thyroid medullary tumours) may also be treated.
- CCK receptor-mediated potentiation of opiate for example morphine
- analgesia for example morphine
- CCK 2 receptors ligands for cholecystokinin receptors in the brain
- YF476 Another benzodiazepine, YF476, was developed as a potent CCKo antagonist (Nishida et al (1994) Journal of Pharmacology and Experimental Therapeutics 269:725-731). In rat cortical membranes, YF476 was found to have an affinity pKj of 10.17 ⁇ 0.03 for the CCK 2 receptor.
- L-365,260 and YF476 are structurally closely related. Both compounds are 1,4- benzodiazepine-2-ones.
- WO 03/041714 discloses potent and selective gastrin and CCK receptor ligands that have the following general formula:
- W is N or N -O " .
- PCT/GB2004/002049 discloses potent and selective gastrin and CCK receptor ligands that have the following general formula:
- W is NZ or NO and Z is H, Cj to C 6 alkyl, t-butoxycarbonyl, acetyl, benzoyl or benzyl.
- benzodiazepinone and benzotriazepinone gastrin and CCK receptor ligands have a nitrogen atom at the 1 -position.
- the present invention is based on the discovery that this nitrogen atom is not an essential requirement for gastrin and CCK receptor binding in l,3,4-benzotriazepine-2-ones. Indeed, this nitrogen atom may be substituted with a carbon atom without loss of gastrin and CCK receptor binding ability. Accordingly, it is an object of the present invention to provide potent and selective gastrin and CCK receptor ligands. It is a further object of the present invention to provide 2,3-benzodiazepine-4-one gastrin and CCK receptor ligands that have a substituted carbon atom at the 5-position.
- 2,3-benzodiazepine-4-ones that are unsubstituted at the 5-position (see formula 1 below) are known from Gatta et al (1985) // Farmaco - Ed Sci 40:942-955, where they are shown to bind "benzodiazepine central pharmacological receptors" in membrane preparations prepared from the rat brain cortex.
- 2,3-benzodiazepine-4-ones that are substituted at both the 3- and 5-positions (see formula 3 below) have been shown to inhibit ⁇ -amyloid formation and therefore be useful in the treatment of Alzheimer's disease (US 6,432,944); act as phosphodiesterase inhibitors (WO 02/098865); AMPA receptor antagonists (WO 97/34878 and US 5,891,871) and have tranquilizing activity (FR 2085645).
- W is N or N + -O " ;
- Ri and R 5 are independently H, Ci to C 6 alkyl, (Ci to C 6 alkyl)oxy, thio, (Ci to C 6 alkyl)thio, carboxy, carboxy(Ci to C 6 alkyl), formyl, (Ci to C 6 alkyl)carbonyl, (Ci to C 6 alkyl)oxycarbonyl, (C 1 to C 6 alkyl)carbonyloxy, nitro, trihalomethyl, hydroxy, hydroxy(Cj to C 6 alkyl), amino, (Ci to C 6 alkyl)amino, di(C !
- Rj and R 5 together form a methylenedioxy group;
- R 2 is of the formula:
- R 8 is selected from H, OH; or C 1 to Cj 2 alkyl, (C 1 to C 12 alkyl)oxy, (C 1 to C 12 alkyl)amino, C 3 to Cj 2 cycloalkyl, (C 3 to C 12 cycloalkyl)oxy, (C 3 to C 12 cycloalkyl)amino, phenyl, benzyloxy, phenylamino, benzylamino, naphthyl, pyridyl, pyrrolyl, imidazolyl, pyrazolyl, pyridazinyl, pyrimidinyl, triazolyl, furanyl, thienyl, furazanyl, oxazolyl, isoxazolyl, thiazolyl, thiazinyl, indolyl, indolinyl, isoindolyl, isoquinolinyl, quinolinyl, be
- X is a bond
- -CR 15 CR 16 -, -CsC-, C(O)NH, NHC(O), C(O)NMe, NMeC(O), C(O)O, NHC(O)NH, NHC(O)O, OC(O)NH, NH, O, CO, SO 2 , SO 2 NH, C(O)NHNH,
- P is O, S or ⁇ R 19 ;
- Z is H, Ci to C 6 alkyl, t-butoxycarbonyl, acetyl, benzoyl or benzyl;
- R 4 is C 3 to C 12 cycloalkyl (optionally substituted with 1, 2 or 3 groups independently selected from C 1 to C 6 alkyl, (C 1 to C 6 alkyl)oxy, C 3 to C 8 cycloalkyl, (C 3 to C 8 cycloalkyl)oxy, thio, (C 1 to C 6 alkyl)thio, carboxy, carboxy(Ci to C 6 alkyl), formyl, (C 1 to C 6 alkyl)carbonyl, (C 1 to C 6 alkyl)oxycarbonyl, (C 1 to C 6 alkyl)carbonyloxy, nitro, trihalomethyl, hydroxy, hydroxy(Ci to C 6 alkyl), amino, (Cj to C 6 alkyl)amino, CU(C 1 to C 6 alkyl)amino, aminocarbonyl, halo, 1IaIo(C 1 to C 6 alkyl), aminosulfonyl, (Ci to C 6 alkyl)s
- R 10 is phenyl, naphthyl, pyridyl, pyrrolyl, imidazolyl, pyrazolyl, pyridazinyl, pyrimidinyl, triazolyl, furanyl, thienyl, furazanyl, oxazolyl, isoxazolyl, thiazolyl, thiazinyl, indolyl, indolinyl, isoindolyl, isoindolinyl, isoquinolinyl, quinolinyl, benzofuranyl, benzothienyl, piperazinyl, piperidinyl, pyrrolidinyl, pyrrolinyl, dihydropyranyl, tetrahydropyranyl, pyranyl, tetrahydrofuranyl, morpholinyl, thiazolidinyl, thiomorpholinyl or thioxanyl (all optionally substituted with 1, 2
- W is N.
- Ri and R 5 are both H.
- the benzo-fused -ring system may have one or two substituents on the benzene ring as indicated hereinabove.
- the substituents may have subtle steric and/or electronic effects which modify the activity of the compound at the gastrin receptor. However, the presence or otherwise of certain substituents on the benzene ring is not crucial to the overall pharmacological activity of the present compounds.
- s is 1 or 2, more preferably 1.
- t is 0, 1 or 2, more preferably 0 or 1 and even more preferably
- R 8 is preferably C 1 to C 12 alkyl, (Ci to C 12 alkyl)oxy, (C 1 to C 12 alkyl)amino, C 3 to Cj 2 cycloalkyl, (C 3 to C 12 cycloalkyl)oxy, (C 3 to Cj 2 cycloalkyl)amino, phenyl, benzyloxy, phenylamino, benzylamino, naphthyl, pyridyl, pyrrolyl, imidazolyl, pyrazolyl, pyridazinyl, pyrimidinyl, triazolyl, furanyl, thienyl, furazanyl, oxazolyl, isoxazolyl, thiazolyl, thiazinyl, indolyl, indolinyl, isoindolyl, isoquinolinyl, quinolinyl, benzofuranyl, be
- R 8 is branched C 3 to C 12 alkyl, branched (C 3 to C 12 alkyl)oxy, C 3 to C 12 cycloalkyl, (C 3 to C 12 cycloalkyl)oxy, (C 3 to C 12 cycloalkyl)amino, phenyl, benzyloxy, phenylamino, benzylamino, naphthyl, pyridyl, pyrrolyl, imidazolyl, pyrazolyl, pyridazinyl, pyrimidinyl, triazolyl, furanyl, thienyl, furazanyl, oxazolyl, isoxazolyl, thiazolyl, thiazinyl, indolyl, indolinyl, isoindolyl, isoindolinyl, isoquinolinyl, quinolinyl, benzofuranyl, benzothienyl, piperaz
- Rg is branched C 3 to Ci 2 alkyl, C 3 to Cn cycloalkyl, phenyl, pyridyl, pyrrolyl, imidazolyl, pyrazolyl, pyridazinyl, pyrimidinyl, triazolyl, furanyl, thienyl, furazanyl, oxazolyi, isoxazolyl, thiazolyl, thiazinyl, indolyl, indolinyl, isoindolyl, isoindolinyl, isoquinolinyl, quinolinyl, piperazinyl, piperidinyl, pyrrolidinyl, pyrrolinyl, dihydropyranyl, tetrahydropyranyl, pyranyl, tetrahydrofuranyl, morpholinyl, thiazolidinyl, thiomorpholinyl or thio
- R 8 is not substituted. However, in those embodiments where R 8 is substituted with 1, 2 or 3 of the groups defined above, it is preferred that R 8 is substituted with 1 or 2, more preferably 1 of these groups.
- Particularly preferred substituents are Ci to C 6 alkyl, (C 1 to C 6 alkyl)oxy, thio, (C 1 to C 6 alkyl)thio, trihalomethyl, (Cj to C 6 alkyl)amino, di(C ! to C 6 alkyl)amino, halo and 1IaIo(C 1 to C 6 alkyl).
- An especially preferred substituent is C 1 to C 6 alkyl.
- R 8 is a branched C 3 to C 12 alkyl group (such as tert- butyl, sec-butyl, isopropyl, isobutyl or isovaleryl); or R 8 is a C 3 to C 12 cycloalkyl (such as cyclopentyl, cyclohexyl, cycloheptyl or adamantyl), phenyl, pyridyl, pyrrolidinyl or piperidinyl group (all optionally substituted with 1, 2 or 3 C 1-6 alkyl groups).
- R 8 is a branched C 3 to C 12 alkyl group (such as tert- butyl, sec-butyl, isopropyl, isobutyl or isovaleryl); or R 8 is a C 3 to C 12 cycloalkyl (such as cyclopentyl, cyclohexyl, cycloheptyl or adamantyl), phenyl,
- R 8 is tert-buty ⁇ . In other specific embodiments, R 8 iscyclohexyl, 1-methylcyclohexyl, 1 -methyl cyclopentyl or cyclopentyl.
- R 11 , R12, R-13, RH, RI 5 , Ri 6 , R17, Ris and R 19 are all H.
- R 3 is of formula: -(CH 2 )-X-R 9
- X is C(O)NH or NHC(O), more preferably X is C(O)NH.
- R 9 is phenyl substituted with a Ci to C 6 alkyl, carboxy, carboxy(Ci to C 6 alkyl), tetrazolyl, tetrazolyl -N-(C] to C 6 alkyl)amino, carboxy(Ci to C 6 alkyl)thio, (Cj to C 6 alkyl)oxycarbonyl(Cj to C 6 alkyl)thio, carboxy(Ci to C 6 alkyl)sulfonyl, furanyl, carboxyfuranyl, (Cj to C 6 alkyl)amino, thiazolyl, (Ci to C 6 alkyl)thiazolyl, or 5-oxo-2,5- dihydro[l,2,4]oxadiazolyl group; or R 9 is a .N-[CaA-OXy(C j to C 6
- R 9 is a substituted phenyl group
- the substituent is preferably at the 3 -position of the phenyl group.
- R 9 is a substituted phenyl group carrying two or three substituents
- one of the substituents is preferably at the 3-position of the phenyl group.
- R 3 may take any of the definitions given for this group above, with the proviso that R 3 is not H.
- R 4 is C 3 to C 12 cycloalkyl (optionally substituted with 1, 2 or 3 groups as defined above).
- Preferred C 3 to C 12 cycloalkyl groups include cyclopentyl, cyclohexyl, cycloheptyl and adamantyl (all optionally substituted with 1, 2 or 3 groups as defined above).
- An especially preferred C 3 to C 12 cycloalkyl groups is cyclohexyl.
- R 4 is R 10 .
- Preferred R 10 groups include phenyl, pyridyl, pyrrolyl, imidazolyl, pyrazolyl, pyridazinyl, pyrirnidinyl, triazolyl, furanyl, thienyl, furazanyl, oxazolyl, isoxazolyl, thiazolyl, thiazinyl, indolyl, indolinyl, isoindolyl, isoindolinyl, isoquinolinyl, quinolinyl, piperazinyl, piperidinyl, pyrrolidinyl, pyrrolinyl, dihydropyranyl, tetrahydropyranyl, pyranyl, tetrahydrofuranyl, morpholinyl, thiazolidinyl, thiomorpholinyl and thioxanyl (all optionally substituted with 1 ,
- R 4 (or R 1O ) is not substituted. However, in those embodiments where R 4 (or Rio) is substituted with 1, 2 or 3 of the groups defined above, it is preferred that R 4 (or Rio) is substituted with 1 or 2, more preferably 1 of these groups.
- Particularly preferred substituents are Ci to C 6 alkyl, (C t to C 6 alkyl)oxy, thio, (Ci to C 6 alkyl)thio, trihalomethyl, (Ci to C 6 alkyl)amino, di(Cj to C 6 alkyl)amino, halo and halo(Ci to C 6 alkyl).
- Especially preferred substituents are OMe, NMe 2 , CF 3 , Me, F, Cl, Br and I.
- R 4 is selected from- C 3 -1 2 jcy.cioalkyl (such- as cyclopentyl, cyclohexyl, cycloheptyl or adamantyl), pyridyl or phenyl (all of which may be optionally substituted with 1, 2 or 3 groups selected from OMe, NMe 2 , CF 3 , Me, F, Cl, Br or I). .
- R 4 is phenyl. In other specific embodiments of the present invention, R 4 is cyclohexyl.
- Certain compounds of the invention exist in various regioisomeric, enantiomeric, tautomeric and diastereomeric forms. It will be understood that the invention comprehends the different regioisomers, enantiomers, tautomers and diastereomers in isolation from each other as well as mixtures.
- the substituted carbon atom at the 5 -position of the 2,3-benzodiazepine-4-ones of the present invention is stereogenic and one enantiomeric form of the claimed compounds may show a higher affinity for gastrin and CCK receptors than the other enantiomeric form. Accordingly, any such enantiomeric form showing a higher affinity for gastrin and CCK receptors is preferred.
- 1-Indanone (I) is reacted with a Grignard reagent (R 4 MgCl) or an alkyl lithium (R 4 Li) to form the tertiary alcohol (II).
- (II) is converted to indene (III) by acid catalysed dehydration, with for example, para-tolunesulfonic acid or HCl.
- (III) may be obtained following activation of the alcohol as the corresponding mesylate, tosylate, chloride, bromide or iodide, by base catalysed elimination using, for example, DBU, pyridine, triethylamine or diisopropylethylamine.
- the 2-carboxymethylphenyl ketone (IV) is obtained from (III) by oxidative cleavage with for example ozone, sodium periodate and ruthenium(III) chloride, or chromium(VI) oxide.
- the corresponding ester (V) can be obtained from (IV) by using an appropriate alcohol YOH and acid-catalysis, under dehydrating conditions using DCC or EDCI, or by treatment of the corresponding cesium, potassium, sodium or lithium salt of the carboxylic acid with an appropriate alkyl halide.
- Ketone (V) is reacted with NH 2 NHP (wherein P represents either a protecting group, R 3 or a suitable precursor R 3 ' thereof) to form benzodiazepine (VI).
- (VII) is obtained from (VI) by base catalysed alkylation using sodium hydride, lithium diisopropyl amide or LiHMDS and a suitable alkyl halide, R 2 'Br (wherein R 2 ' represents either R 2 or a suitable precursor thereof). Modification of R 2 ' and/or R 3 ' affords the desired benzodiazepinone (VIII).
- Compounds wherein W is N + -O " may be prepared by treating compound VIII directly or an appropriately protected derivative of compound VII, with an oxidising agent such as MCPBA. Such derivatives of compound VII yield the desired N-oxide following deprotection.
- R 2 ' groups which are suitable precursors of Ra will depend on the particular nature of R 2 .
- R 2 is -(CH 2 ) S -C(O)-Rs
- a suitable R 2 ' group would be -(CH 2 ) S -CN or -(CH 2 ) s -C(O)NMe(OMe).
- the requisite R 2 groups may be readily accessed via treatment, with the appropriate Gn gnard- reagent R 8 MgCl or alkyl lithium R 8 Li, Similarly, when R 2 is -(CH 2 ) S -C(O)-(C] to C 6 alkyl)amino, a suitable R 2 ' would be -(CH 2 ) S -C(O)-(C 1 to Cj 2 alkyl)oxy. In this case, the requisite R 2 may be readily accessed via an ester hydrolysis followed by an amide coupling reaction. The skilled person will be aware of many other suitable R 2 > groups, depending on the nature of R 2 .
- R 3 - groups which are suitable precursors of R 3 will depend on the particular nature of R 3 .
- P represents R 3 '
- these may be obtained directly by treatment of (V) using the appropriate substituted hydrazine, or indirectly when P represents a protecting group, such as 4-methoxybenzyl or t-butyloxycarbonyl, by first removal of the protecting group with trifluoroacetic acid or hydrochloric acid, followed by base catalysed reaction using sodium hydride and R 3 'Br.
- a suitable R 3 ' precursor of R 3 when, for example, R 3 is -(CH 2 ) m C(O)NH-(CH 2 ) p -R 9 would be -(CH 2 ) m CO 2 (C 1-6 alkyl).
- the requisite R 3 groups may be readily accessed via an ester hydrolysis followed by a simple amide coupling reaction.
- the skilled person will be aware of many other suitable R 3 > groups, depending on the nature of R 3 .
- the present invention also provides a method of making compounds according to formula (I).
- the invention also comprehends derivative compounds ("pro-drugs") which are degraded in vzVo to yield the species of formula (I)
- Pro-drugs are usually (but not always) of lower potency at the target receptor than the species to which they are degraded.
- Pro-drugs are particularly useful when the desired species has chemical or physical properties which make its administration difficult or inefficient. For example, the desired species may be only poorly soluble, it may be poorly transported across the mucosal epithelium, or it may have an undesirably short plasma half-life. Further discussion of pro-drugs may be found in Stella, V. J. et al., "Prodrugs", Drug Delivery Systems, 1985, pp. 112-176, and Drugs, 1985, 29, pp. 455-473.
- Pro-drug forms of the pharmacologically-active compounds of the invention will generally be compounds according to formula (I) having an acid group which is esterified or amidated. Included in such esterified acid groups are groups of the form -COOR a , wherein R a is Cj to C 5 alkyl, phenyl, substituted phenyl, benzyl, substituted benzyl, or one of the following:
- Amidated acid groups include groups of the formula -CONR 13 R 0 , wherein R b is H, C 1 to C 5 alkyl, phenyl, substituted phenyl, benzyl, or substituted benzyl, and R° is -OH or one of the groups just recited for R b .
- Compounds of formula (I) having an amino group may be derivatised with a ketone or an aldehyde such as formaldehyde to form a Mannich base. This will hydrolyse with first order kinetics in aqueous solution.
- Another aspect of the present invention is a pharmaceutical composition
- a pharmaceutical composition comprising a compound of formula (I) substantially as described herein before with a pharmaceutically acceptable diluent or carrier.
- Another aspect of the present invention is a compound of formula (I) or a pharmaceutical composition comprising a compound of formula (I) for use in medicine.
- Another aspect of the present invention is a compound of formula (I) or a pharmaceutical composition comprising a compound of formula (I) for use in the preparation of a medicament for the treatment of gastrin related disorders.
- Typical gastrin related disorders are gastrointestinal ulcers, dyspepsia, reflux oesophagitis (gastroesophageal reflux disease (GERD), both erosive and non-erosive), Zollinger-EUison syndrome, Barrett's oesophagus (specialized intestinal metaplasia of distal oesophagus), ECL cell hyperplasia, rebound hypersecretion (following cessation of anti-secretory therapy), ECL-derived gastric polyps, cancer (including cancers of the GI tract, more particularly in the stomach, oesophagus and colo-rectal areas, as well as tumours found in other organs such as the pancreas, lung (small cell lung carcinomas) and thyroid (thyroid medullary tumours)) and CCK receptor-mediated anxiety.
- the CCK receptor-mediated potentiation of opiate induced analgesia may also provide a role for the gastrin ligands of the present invention.
- Yet another aspect of the present invention is a method of making a pharmaceutical composition
- a pharmaceutical composition comprising a compound of formula (I) substantially as described herein before, comprising mixing said compound with a pharmaceutically acceptable diluent or carrier.
- salts of the acidic or basic compounds of the invention can of course be made by conventional procedures, such as by reacting the free base or acid with at least a stoichiometric amount of the desired salt-forming acid or base.
- Pharmaceutically acceptable salts of the acidic compounds of the invention include salts with inorganic cations such as sodium, potassium, calcium, magnesium, zinc, and ammonium, and salts with organic bases.
- Suitable organic bases include N-methyl-D-glucamine, arginine, benzathine, diolamine, olamine, procaine, chlorine and tromethamine.
- Pharmaceutically acceptable salts of the basic compounds of the invention include salts derived from organic or inorganic acids.
- Suitable anions include acetate, adipate, besylate, bromide, camsylate, chloride, citrate, edisylate, estolate, fumarate, gluceptate, gluconate, glucuronate, hippurate, hyclate, hydrobromide, hydrochloride, iodide, isethionate, lactate, lactobionate, maleate, mesylate, methylbromide, methylsulfate, napsylate, nitrate, oleate, pamoate, phosphate, polygalacturonate, stearate, succinate, sulfate, sulfosalicylate, tannate, tartrate, terephthalate, tosylate and triethiodide. It is anticipated that the compounds of the invention can be administered by oral or parenteral
- the compounds of the invention will generally be provided in the form of tablets or capsules or as an aqueous solution- or-susp- ⁇ nsion.
- Tablets for oral use may include the active ingredient mixed with pharmaceutically acceptable excipients such as inert diluents, disintegrating agents, binding agents, lubricating agents, sweetening agents, flavouring agents, colouring agents and preservatives.
- suitable inert diluents include sodium and calcium carbonate, sodium and calcium phosphate and lactose.
- Corn starch and alginic acid are suitable, disintegrating agents.
- Binding agents may include starch and gelatine.
- the lubricating agent if present, will generally be magnesium stearate, stearic acid or talc. If desired, the tablets may be coated with a material such as glyceryl monostearate or glyceryl distearate, to delay absorption in the gastrointestinal tract.
- Capsules for oral use include hard gelatine capsules in which the active ingredient is mixed with a solid diluent and soft gelatine capsules wherein the active ingredient is mixed with water or an oil such as peanut oil, liquid paraffin or olive oil.
- the compounds of the invention will generally be provided in sterile aqueous solutions or suspensions, buffered to an appropriate pH and isotonicity.
- Suitable aqueous vehicles include Ringer's solution and isotonic sodium chloride.
- Aqueous suspensions according to the invention may include suspending agents such as cellulose derivatives, sodium alginate, polyvinyl ⁇ pyrrolidone and gum tragacanth, and a wetting agent such as lecithin.
- Suitable preservatives for aqueous suspensions include ethyl and n-propyl p-hydroxybenzoate.
- Effective doses of the compounds of the present invention may be ascertained be conventional methods.
- the specific dosage level required for any particular patient will depend on a number of factors, including severity of the condition being treated, the route of administration and the weight of the patient. In general, however, it is anticipated that the daily dose- (whether administered as a single dose or as divided doses) will be in the range 0.001 to 5000 mg per day, more usually from 1 to 1000 mg per day, and most usually from 10 to 200 mg per day.
- a typical dose will be expected to be between 0.01 ⁇ g/kg and 50 mg/kg, especially between 10 ⁇ g/kg and 10 mg/kg, eg. between 100 ⁇ g/kg and 2 mg/kg.
- compositions comprising a compound according to formula (I) and a proton pump inhibitor.
- compositions comprising a CCK 2 /gastrin antagonist and a proton pump inhibitor are described in International patent application WO93/12817, incorporated herein by reference.
- the proton pump inhibitor is omeprazole which is 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)- methyl]sulfinyl]-lH-benzimidazole;
- SK&F 95601 which is 2-[[(3-chloro-4-morpholino-2-pyridyl)methyl]sulfinyl]-5- methoxy-(lH)-benzimidazole;
- SK & 96067 which is 3-butyryl-4-(2-methylphenylamino)-8-methoxyquinoline; 5-trifluoromethyl-2-[4-methoxy-3-methyl-2-pyridyl-methyl]-thio-[lH]- benzimidazole; or pharmaceutically acceptable salts thereof.
- the proton pump inhibitor is lansoprazole which is 2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2- pyridinyl]methyl]sulfinyl]-lH-benzimidazole; pantoprazole which is 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2- pyridinyl)methyl]sulf ⁇ nyl]- 1 H-benzimidazole; perprazole; rabeprazole which - is 2-[[4-(3-methoxypropoxy)-3-methylpyridin-2- yl]methylsulfinyl]-lH-benzimidazole;
- Rabeprazole is described in US patent 5,045,552. Lansoprazole is described in US patent 4,628,098. Pantoprazole is described in US patent 4,758,579— These patents -are incorporated herein by reference.
- the proton pump inhibitor is selected from (RS)-rabeprazole, (RS)-omeprazole, lansoprazole, pantoprazole, (R)-omeprazole, (S)-omeprazole, perprazole, (R)-rabeprazole, (S)-rabeprazole, or the alkaline salts thereof.
- the alkaline salts may be, for example, the lithium, sodium, potassium, calcium or magnesium salts.
- compositions of this invention comprising a compound of formula (I) and a proton pump inhibitor may be administered as described above.
- the dose of each of the active ingredients in these compositions will be equal to or less than that which is approved or indicated in monotherapy with said active ingredient.
- kits comprising a compound of formula (I) and a proton pump inhibitor.
- the kit is useful as a combined preparation for simultaneous, separate or sequential use in the treatment of patients suffering from gastrointestinal disorders.
- a method of making a pharmaceutical composition comprising a compound of formula (I) substantially as described herein before and a proton pump inhibitor, comprising mixing said compound and said proton pump inhibitor with a pharmaceutically acceptable carrier or diluent.
- alkyl is used herein to refer to both straight and branched chain forms. Further, the alkyl chain may include multiple bonds. Hence, the term “alkyl” also encompasses alkenyl and alkynyl groups. Likewise, the term “cycloalkyl” also encompasses cycloalkenyl groups. Preferably, alkyl and cycloalkyl groups as used in the present invention do not contain multiple bonds. Where there are preferred alkenyl groups, these are specified as alkenyl groups. However, specific reference to alkenyl groups is not to be construed as any limitation on the definition of alkyl groups as described above.
- dialkyl groups e.g. di(Cj to C 6 alkyl)amino groups
- the two alkyl groups may be the same or different.
- a divalent bridging group is formed from a cyclic moiety
- the linking bonds may be on any suitable ring atom, subject to the normal rules of valency.
- pyrrolyl in the definition of Y includes all of the following groups:
- halogen or "halo" " is used herein to refer to any of fluorine, chlorine, bromine and iodine.
- Mosl usually, however, halogen substituents in the compounds of the invention are chlorine and fluorine substituents.
- Groups such as halo(Cj to C 6 alkyl) includes mono-, di- or tri-halo substituted Ci to C 6 alkyl groups.
- the halo substitution may be at any position in the alkyl chain.
- [N-Z] refers to possible substitution of an amino group in the following compound or substituent name.
- [N-Z] alkyl amino refers to groups of the form
- [N-Z]tetrazolylamino wherein Z is C 1 to C 6 alkyl, includes groups such as tetrazolyl[N-methyl] amino and tetrazolyl[N-ethyl]amino. Of course, when Z is H, no substitution is present.
- Step a 1-Phenyl-indan-l-ol.
- a solution of 1.0M phenylmagnesium chloride in dry THF- Et 2 O (1:1 / 160OmL, 1.6mol) was added drop- wise over 30 mins to a solution of 1- indanone (141g, 1.07mol) in dry Et 2 O (80OmL) under argon and maintained 25°C with ice- H 2 O cooling.
- the mixture was stirred for 16h at room temperature followed by the drop- wise addition, over 30 mins with stirring, of saturated NH 4 Cl solution (20OmL).
- the organic layer was separated and the aqueous phase extracted with EtOAc (2x500mL).
- Step b 3-Phenyl-lB.-indene.
- 1-phenyl-indan-l-ol 205g, 0.97mol
- dry DCM 80OmL
- j?-toluenesulphonic acid monohydrate 0.2g, lmmol
- the mixture stirred at room temperature for 36h, washed with saturated NaHCO 3 solution (10OmL) and dried over MgSO 4 . Filtration and evaporation of the solvent gave the product as an oil which was purified by vacuum distillation.
- the title compound was obtained as a pale yellow oil (86.6g, 46 %).
- 1 H NMR (CDCl 3 ) 7.66-7.29 -5 (9H, m), 6.62 (IH, t), 3.55 (2H, d).
- Step c (2-Benzoyl-phenyl)-acetic acid.
- Sodium periodate (375g, 1.75mol) was added in small portions over Ih to a solution of 3 -phenyl- IH-indene (82.1Og, 0.43 mol) and
- Step d (2-Benzoy ⁇ -phenyl)-acetic acid methyl ester.
- a solution of (2-benzoyl-phenyl)- 20 acetic acid (60.94g, 0.25mol) in MeOH (50OmL) was saturated with HCl gas and heated at reflux for 3h. On cooling, the solvent was evaporated and the residue dissolved in toluene and re-evaporated (3x10OmL) followed by DCM (2x10OmL). The title compound was obtained as a yellow oil (61.9Ig, 96%).
- Step e (4-Oxo-l -phenyl-4,5-dihydro-benzo[d] [1 ,2] diazepin-3-yl)-acetic acid ethyl ester.
- Pyridine (4OmL, 0.5mol) was added to a mixture of (2-benzoyl-phenyl)-acetic acid methyl ester (62.78g, 0.25mol) and ethyl hydrazinoacetate hydrochloride (76.34g, 0.5mol) in EtOH (50OmL) and heated at reflux for 120 h. On cooling to room temperature, the 30 precipitated solid was removed by filtration and the filtrate evaporated.
- Lithium hexamethyldisilazide (1.0M solution in THF/ 10OmL) was added over 15 mins to a solution of (4-oxo-l-phenyl-4,5- dihydro-benzo[d][l,2]diazepin-3-yl)-acetic acid -ethyl ester (30.62 ⁇ 95mmol) in dry THF (50OmL) at — 2D°C under argon. Stirring was continued at — 20°C for 30mins.
- 1 -bromopinacolone 14.12mL, O.lmol
- Oxalyl chloride (45 ⁇ L, 0.5mmol), and DMF (lO ⁇ L) were added to a solution of (+/-)[5-(3, 3 -dimethyl-2-oxo-butyl)-4-oxo-l -phenyl -4,5-dihydro-benzo[d][l,2]diazepin- 3-yl]-acetic acid (lOOmg, 0.26mmol) in DCM (1OmL) and the mixture stirred at room temperature for 2h. Evaporated on a rotary evaporator to dryness and re-evaporated from DCM (3x15mL).
- Step a (+/-)3- ⁇ 2-[5-(3,3-Dimethyl-2-oxo-butyl)-4-oxo-l -phenyl-4, 5-dihydro- benzofdj [1 ,2] 'diazepin-3-yl] ' -acetylamino) -benzoic acid methyl ester was obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5-dihydro- [l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 1, step h), except that 3-benzoic acid methyl ester was used in place of 3-(3-amino-phenyl)
- (+/-)3- ⁇ 2-[5-(3,3-Dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d] [1 ,2] diazepin-3-yl] -acetylaminoj-benzoic acid was obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetic acid (Example 1, step g), except that (+/-)3- ⁇ 2-[5-(3,3- dimethyl-2-oxo-butyl)-4-oxo-l -phenyI-4,5-dihydro-benzo[d][l ,2] diazepin-3-yl] - acetylaminoj-benzoic acid
- Step a (+/-)3-(3- ⁇ 2-[5-(3,3-Dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4,5-dihydro- benzofd] [1,2] 'diazepin-3-yl] '-acetylamino ⁇ -phenyl) -propionic acid tert-butyl ester was obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo- butyl)-4-oxo-l - ⁇ henyl-4,5-dihydro-benzo[d][l ,2]diazepin-3-yl]-N-[3-(5-oxo-2,5-dihydro- [l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 1, step h), except that 3-aminophenyl propionic acid tert
- Step b (+/-)3-(3- ⁇ 2-[5-(3, 3-Dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4, 5-dihydro- benzo[d] [1,2] diazepin-3-yl] -acetylamino ⁇ -phenyl)-propionic acid.
- (+/-)3-(3- ⁇ 2-[5-(3,3- Dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]- acetylamino ⁇ -phenyl)-propionic acid tert-butyl ester (160mg, 0.27mmol) was dissolved in trifluoroacetic acid (5mL) and the mixture stirred at room temperature for Ih. The solution evaporated to dryness, the residue dissolved in DCM (2OmL) washed with H 2 O (2x1 OmL), brine (1OmL) and dried (MgSO 4 ).
- Step a (+/-)2,2-Dimethyl-propionic acid 5-(3- ⁇ 2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d] [ 1,2] diazepin-3-yl] -acetylamino ⁇ -phenyl)-tetrazol-l-ylmethyl ester was obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl- 2-oxo-butyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5- .dihydro-[l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 1, step h), except that 2,2- dimethyl-propionic acid 5-(3
- Step b (+/-)2-[5-(3, 3-Dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4, 5-dihydro- benzo[d] [1 ,2] diazepin-3-yl] -N-[3-(lH-tetrazol-5-yl)-phenyl] -acetamide.
- (+/-)2,2-Dimethyl-propionic acid 5-(3- ⁇ 2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l-phenyl- 4, 5-dihydro-benzo[d] [1 ,2] diazepin-3-yl] -acetylamino ⁇ -phenyl)-tetrazol-l-ylmethyl ester (83mg, 0.13mmol) was dissolved in a saturated solution of ammonia in MeOH (1OmL) and the mixture stirred at room temperature for 16h.
- Step a (+/-)[5-(2-Cyclopentyl-2 ⁇ oxo-eth.yl)-4-oxo-l-phenyl-4, 5-dihydro- benzo[d] [ 1 ,2] dia ⁇ epin-3-yl] -acetic acid ethyl ester was obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimemyl-2-oxo-butyl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetic acid ethyl ester (Example 1, step f), except that 2- bromo-1-cyclopentyl-ethanone was used in place of 1-bromopinacolone.
- (+/-)[5-(2-Cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d] [1 ,2] diazepin-3-yl] -acetic acid was obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l -phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetic acid (Example 1, step g), except that (+/-)[5-(2- cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-acetic acid ethyl ester was used in place of (+/-)[5-(2-Cy
- Step c (+/-)2-[5-(2-Cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro- benzofdjfl, 2] diazepin-3-yl] -N-[3-(5-oxo-2, 5-dihydro-[l, 2, 4] oxadiazol-3-yl)-phenyl] - acetamide
- (+/-)2-[5-(2- Cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l ,2]diazepin-3-yl]-N-[3- (5-oxo-2,5-dihydro-[l,2,4]oxadiazol-3-yl)-phenyl]-acetamide was obtained as an amorphous colourless solid (85mg, 61 0 Zo)- 1 H NMR (CDCl 3 ) 11.50-10.50 (IH, bs), 9.35 and 8.86 (IH, m), 7.80-7.25 (13H, m), 5.10-3.00 (6H, m), 2.20-1.05 (8H, m).
- the compound was further characterised as the TV-methyl-D-glucamine salt. Found: C 58.35, H 6.26, N 10.12%; C 32 H 29 N 5 O 5 »C 7 Hj 7 NO 5 ⁇ 2.6H 2 0 requires: C 58.08, H 6.41, N 10.41%.
- Step a (+/-)3- ⁇ 2-[5-(2-Cyclopentyl-2-oxo-ethyl)-4-oxo-l -phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetylamino ⁇ -benzoic acid methyl ester was obtained by a similar method used in the preparation of (+/-)2-[5-(2-cyclopentyl-2-oxo-ethyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5-dihydro- [l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 5, step c), except that 3-aminobenzoic acid methyl ester was used in place of 3-(3-amino-phenyl
- Step b (+/-)3- ⁇ 2-[5-(2-Cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4, 5-dihydro- benzofd] [1 ,2] ' diazepin-3-yl] ' -acetylamino ⁇ -benzoic acid was obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetic acid (Example 1, step g), except that (+/-)3- ⁇ 2-[5-(2- cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]- ace
- Step a (+/-)3-(3- ⁇ 2-[5-(2-Cyclopentyl-2-oxo-ethyl)-4-oxo- 1 -phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetylamino ⁇ -phenyl)-propionic acid tert-butyl ester was .obtained by.
- Step b (+/-)3-(3- ⁇ 2-[5-(2-Cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4, 5-dihydro- benzofdj [1 ,2] ' diazepin-3-yl] '-acetylamino ⁇ -phenyl)-propionic acid was obtained by a similar method used in the preparation of (+/-)3-(3- ⁇ 2-[5-(3,3-dimethyl-2-oxo-butyl)-4- oxo-1 -phenyl-4,5-dihydro-benzo[d] [ 1 ,2]diazepin-3-yl]-acetylamino ⁇ -phenyl)-propionic acid (Example 3, step b), except that (+/-)3-(3- ⁇ 2-[5-(2-cyclopentyl-2-oxo-ethyl)-4-oxo-l- phen
- Step a (+/-)2,2-Dimethyl-propionic acid 5-(3- ⁇ 2-[5-(2-cyclopentyl-2-oxo-ethyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-acetylamino ⁇ -phenyl)-tetrazol-l-ylm ethyl ester was obtained by a similar method used in the preparation of (+/-)2-[5-(2-cyclopentyl- 2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5- dihydro-[l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example -5, step c), except that 2,2- dimethyl-
- Step b (+/-)2-[5-(2-CyclopentyU2-oxo-ethyl)--4-oxo-l-phenyl-4, 5-dihydro-. benzo [d] [ 1 ,2] diazepin-3-yl] -N-[3-(l H-tetrazol-5-yl)-phenyl] -acetamide was obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(lH-tetrazol-5-yl)-phenyl]- acetamide (Example 4, step b), except that (+/-)2,2-dimethyl-propionic acid 5-(3- ⁇ 2-[5-(2- cyclopentyl-2-oxo
- Step a (+/-)[5-(2-Cyclohexyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d] [1,2] diazepin-3-yl] -acetic acid ethyl ester is obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetic acid ethyl ester (Example 1, step f), except that 2- bromo-1-cyclohexyl-ethanone is used in place of 1-bromopinacolone.
- (+/-)[5-(2-Cyclohexyl-2-oxo-ethyl)-4-oxo-l-phenyl-4, 5-dihydro- benzo [d][ 1,2] diazepin-3-yl] -acetic acid is obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l -phenyl-4,5-dihydro- benzo[d][ 1,2] diazepin-3-yl] -acetic acid (Example 1, step g), except that (+/-)[5-(2- cyclohexyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-acetic acid ethyl ester is used in place of (+/-)[5-(3,3-di
- Step c (+/-)2-[5-(2-Cyclohexyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro- benzofdj [1 ,2] diazepin-3-yl] -N-[3-(5-oxo-2,5-dihydro-[l ,2,4] oxadiazol-3-yl)-phenyl] ' - acetamide is obtained by a similar method used in the preparation of (+/-)2r[5-(2- cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3- (5-oxo-2,5-dihydro-[l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 5, step c),
- Step a (+/-)3- ⁇ 2-[5-(2-Cyclohexyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d] [1 ,2] diazepin-3-yl] -acetylamino ⁇ -4-methyl-benzoic acid methyl ester is obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo- l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5-dihydro- [l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 1, step h), except that (+/-)[5-(2- cyclohexyl-2-oxo-ethyl)
- (+/-)3- ⁇ 2-[5-(2-Cyclohexyl-2-oxo-ethyl)-4-oxo-l-phenyl-4, 5-dihydro- benzofd] f 1,2] diazepin-3-yl] -acetylan ⁇ inoj-4-methyl-benzoic acid is obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l-phenyl-4,5- dihydro-benzo[d][l,2]diazepin-3-yl]-acetic acid (Example 1, step g), except that (+/-)3- ⁇ 2- [5-(2-cyclohexyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]- acetyla
- Step a (4-Oxo-l-cyclohexyl-4,5-dihydro-benzo[d] [1 ,2] diazepin-3-yl)-acetic acid ethyl ester is obtained using steps a-e of the preparation of (4-oxo-l-phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl)-acetic acid ethyl ester (Example 1, step e), except that cyclohexylmagnesium chloride is used in place of phenylmagnesium chloride in step a.
- Step b (+/-)3- ⁇ 2-[5-(2-(l-Methyl-cyclopentyl)-2-oxo-ethyl)-4-oxo-l-cyclohexyl-4,5- dihydro-benzo[d] [1,2] diazepin-3-yl] -acetic acid is obtained from (4-oxo-l-cyclohexyl- 4,5-dihydro-benzo[d][l,2]diazepin-3-yl)-acetic acid ethyl ester using steps f-g of the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-buryl)-4-oxo-l-phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetic acid (Example 1, step g), except that 2-bromo-l-(l- methyl-cyclopentyl)-ethanone is used
- (+/-)3- ⁇ 2-[5-(2-(l-Methyl-cyclopentyl)-2-oxo-ethyl)-4-oxo-l-cyclohexyl-4,5- dihydro-benzofd] [1,2] diazepin-3-yl] -acetylamino ⁇ -benzoic acid methyl ester is obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo- 1 -phenyl-4,5-dihydro-benzo [d] [ 1 ,2]diazepin-3 -yl]-N-[3 -(5-oxo-2,5-dihydro- [l,2,4]oxadiazol-3-yl)- ⁇ henyl]-acetamide (Example 1, step h), except that (+/-)3- ⁇ 2-[5-(2- (l-rae
- Step a (+/-)(3- ⁇ 2-[5-(2-(l-Methyl-cyclopentyl)-2-oxo-ethyl)-4-oxo-l-cyclohexyl ⁇ 4,5- dihydro-benzo[d] [1,2] diazepin-3-yl] ' -acetylammo) -phenyl) -acetic acid methyl ester is obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo- butyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5-dihydro- [l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 1, step h), except that (+/-)3- ⁇ 2-[5-(2- (l
- Step b (+/-)(3- ⁇ 2-[5-(2-(l-Methyl-cyclopentyl)-2-oxo-ethyl)-4-oxo-l-cyclohexyl ⁇ 4,5- dihydro-benzofd] [1,2] diazepin-3-yl] -acetylamino ⁇ -phenyl)-acetic acid is obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-acetic acid (Example 1, step g), except that (+/-)(3- ⁇ 2-[5-(2-(l-methyl-cyclopentyl)-2-oxo-ethyl)-4-oxo-l-cyclohexyl-4,5-dihydro- benzo[d][l
- Step a (+/-)(3- ⁇ 2-[5-(2-(l-Methyl-cyclopentyl)-2-oxo-ethyl)-4-oxo-l-cyclohexyl-4,5- dihydro-benzo[d] [1 ,2] diazepin-3-yl] -acetylamino ⁇ -phenysulfanyl)-acetic acid ethyLester ⁇ s obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo- butyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5-dihydro- [l,2,4 ⁇ oxadiazol-3-yl)-phenyl]-acetamide (Example 1, step h), except that (+/-)3- ⁇ 2-[5
- Step b (+/-)(3- ⁇ 2 ⁇ [5-(2-(l-Methyl-cyclopentyl) ⁇ 2-oxo-ethyl)-4-oxo-l-cyclohexyl-4,5- dihydro-benzo[d] [1 ,2] diazepin-3-yl] -acetylamino ⁇ -phenysulfanyl)-acetic acid is obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-acetic acid (Example 1, step g), except that (+/-)(3- ⁇ 2-[5-(2-(l-methyl-cyclopentyl)-2-oxo-ethyl)-4-oxo-l-cyclohexyl-4,5-dihydro
- Step a (+/-)3- ⁇ 2-[5-(2-(3,3-Dimethyl-2-oxo-butyl)-2-oxo-ethyl)-4-oxo-l-cyclohexyl-4,5- dihydro-benzo[d][ 1,2] diazepin-3-yl] -acetic acid is obtained using steps f-g of the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l -phenyl-4,5-dihydro- benzo[d][l,2]diazepin-3-yl]-acetic acid (Example 1 , Step g), except that (4-oxo-l- cyclohexyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl)-acetic acid ethyl ester is used in step f in place of (4-oxo-l-pheny
- Step b (+/-)2-[5-(3, 3-Dimethyl-2-oxo-butyl)-4-oxo-l -cyclohexyl-4 , 5-dihydro- benzo[d] [1 ,2] diazepin-3-yl] -N-[3-(5-oxo-2,5-dihydro-[l ,2,4] oxadiazol-3-yl)-phenyl] - acetamide As.
- (+/-)2,2-Dimethyl-propionic acid 5-(3- ⁇ 2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- cyclohexyl-4, 5-dihydro-benzo [d] [1 ,2] diazepin-3-yl] -acetylamino ⁇ -phenyl)-tetrazol-l - ylmethyl ester is obtained by a similar method used in the preparation of (+/-)2-[5-(2- cyclopentyl-2-oxo-ethyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3- (5-oxo-2,5-dihydro-[l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 5, step c), except that (+/-)3-
- Step b (+/-)2-[5-(3,3-Dimethyl-2-oxo-butyl)-4-oxo-l-cyclohexyl-4,5-dihydro- benzo[d] [1 ,2] diazepin-3-yl] -N-[3-(lH-tetrazol-5-yl)-phenyl] -acetamide is obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(lH-tetrazol-5-yl)-phenyl]- acetamide (Example 4, step b), except-that (+/-)2,2- ⁇ iimethyl-propionic acid 5-(3- ⁇ 2-[5- (3,3-dimethyl-2-oxo
- Step a (+/-)(3- ⁇ 2-[5-(3,3-Dimethyl-2-oxo-b ⁇ tyl)-4-oxo-l-cyclohexyl-4,5-dihydro- benzofdj [1 ,2] diazepin-3-yl) -acetylaminoj -phenyl) -fur an-2-carboxylic acid methyl ester is obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo- butyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5-dihydro- [l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 1, step h), except that (+/-)3- ⁇ 2-[5-(2- (3,3
- Step b (+/-)(3 ⁇ 2-[5-(3, 3-Dimethyl-2-oxo-bntyl)-4-oxo-l -cyclohexyl-4, 5-dihydro- benzo[d] [1 ,2] diazepin-3-yl] -acetylamino ⁇ -phenyl)-furan-2-carboxylic acid is obtained by a similar method used in the preparation of (+/-)[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l :> 2]diazepin-3-yl]-acetic acid (Example 1, step g), except that (+/-)(3 - ⁇ 2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo- 1 -cyclohexyl-4,5-dihydro- benzo[d][l,
- (+/-)(3- ⁇ 2-[5-(3,3-Dimethyl-2-oxo-butyl)-4-oxo-l ⁇ cyclohexyl-4,5-dihydro ⁇ benzo[dJ[l,2Jdiazepin-3-ylJ-acetylamino ⁇ -phenyl)-propionic acid tert-butyl ester is obtained by a similar method used in the preparation of (+/-)2-[5-(3,3-dimethyl-2-oxo- butyl)-4-oxo-l-phenyl-4,5-dihydro-benzo[d][l,2]diazepin-3-yl]-N-[3-(5-oxo-2,5-dihydro- [l,2,4]oxadiazol-3-yl)-phenyl]-acetamide (Example 1, step h), except that (+/-)3- ⁇ 2-[5-(2- (3,3-dimethyl-2-ox
- Step b. (+/-)(3- ⁇ 2-[5-(3,3-Dimethyl-2-oxo-b ⁇ tyl) ⁇ 4-oxo-l-cyclohexyl-4,5-dihydro- benzofd] ' [1 ,2] ' diazepin-3-yl] '-acetylamino ⁇ -phenyl)-propionic acid is obtained by a similar method used in the preparation of (+/-)3-(3- ⁇ 2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l- phenyl-4,5-dihydro-benzo[d][l ,2]diazepin-3-yl]-acetylamino ⁇ -phenyl)-propionic acid (Example 3, step b), except that (+/-)(3- ⁇ 2-[5-(3,3-dimethyl-2-oxo-butyl)-4-oxo-l-l-
- the oesophagus of immature rats (33-50 g, ca. 21 days old) was ligated at the level of the cardiac sphincter and the duodenal sphincter was cannulated.
- the stomach was excised and flushed with ca. 1 ml of unbuffered physiological saline solution.
- the fundus was punctured and cannulated.
- a further 4-5 ml of unbuffered solution was flushed through the stomach to ensure the preparation was not leaking.
- the stomach was lowered into a jacketed organ bath containing 40 ml of buffered solution containing 3 x 10 "8 M 5- methylfurmethide, maintained at 37° and gassed vigorously with 95% O 2 / 5% CO 2 .
- the stomach was continuously perfused at a rate of 1 ml min " with unbuffered solution gassed with 100% O 2 with the perfusate passing over an internally referenced pH-electrode fixed 12 cm above the stomach
- - activity of the ligands was assessed in a radioligand binding study, looking at the displacement of [ 3 H]-L-364,718 from sites in CHO-Kl cells into which the human CCKi -receptor sequence has been cloned. Where examined, the Examples showed a pKj of less than 6.
- compositions and products- of the present invention comprising a compound of formula (I) and a proton pump inhibitor reduce hyperplasia, associated with administration of proton pump inhibitors. This was measured according to the following experimental protocol.
- Gastrin test drug made up to an appropriate dose in physiologically compatible solvent.
- tissue After removal of the fundus, the stomach were rinsed with phosphate buffered saline prior to fixation with 4% formalin in Millonig buffer. After 4 hours immersion in fixative solutions at room temperature, tissue was rinsed in phosphate buffered saline (PBS), dehydrated and embedded in paraffin using the Leitz paraffin embedding station (Leitz TP 1050; Germany) dehydration module and paraffin embedding module -(Lei-tz EG -1160; Germany).
- PBS phosphate buffered saline
- Cross sections (3 ⁇ m thick) of the oxyntic part of the stomach were made at 3 levels, each separated by a distance of 400 ⁇ m.
- Imaging Fluorescence labelling was observed with an epifluorescence microscope or a Zeiss LSM510 (Carl Zeiss Jena GmbH) confocal microscope.
- the labelling index of ECL cells For determination of the labelling index of ECL cells, at least 80 confocal images per rat were taken -from the 3 slides at the 3 different levels. The ratio of double labelled cells (HDC + PCNA) and all HDC labelled cells yielded the labelling index of ECL cells.
- Proliferation activity of ECL cells in the PPI group is expected to be increased compared with sham, GRA and GRA-PPI groups (Eissele, R., Patberg, H., Koop, H., Krack, W., Lorenz, W., McKnight, A.T., and Arnold, R. Effect of gastrin receptor blockade on endrocine cells in rats during achlorhydria. Gastroenterology, 103, 1596-1601, 1992). Increased proliferation by PPI will be completely blocked by GRA.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014026997A1 (en) | 2012-08-16 | 2014-02-20 | Bayer Pharma Aktiengesellschaft | 2,3-benzodiazepines |
WO2014128070A1 (en) | 2013-02-22 | 2014-08-28 | Bayer Pharma Aktiengesellschaft | Pyrrolo- and pyrazolo-triazolodiazepines as bet-protein inhibitors for treating hyperproliferative diseases |
WO2014128111A1 (en) | 2013-02-22 | 2014-08-28 | Bayer Pharma Aktiengesellschaft | 4-substituted pyrrolo- and pyrazolo-diazepines |
WO2014128067A1 (en) | 2013-02-19 | 2014-08-28 | Bayer Pharma Aktiengesellschaft | Bicyclo 2,3-benzodiazepines and spirocyclically substituted 2,3-benzodiazepines |
WO2015121226A1 (en) * | 2014-02-13 | 2015-08-20 | Bayer Pharma Aktiengesellschaft | 6-substituted 2,3-benzodiazepines |
WO2017005711A1 (en) * | 2015-07-09 | 2017-01-12 | Bayer Pharma Aktiengesellschaft | Phosphorous-and sulfur-substituted benzodiazepine derivatives |
US10709714B2 (en) | 2013-11-22 | 2020-07-14 | Clifton Life Sciences LLC | Gastrin antagonists for treatment and prevention of osteoporosis |
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WO1993012817A1 (en) * | 1991-12-20 | 1993-07-08 | Warner-Lambert Company | Therapeutic combinations useful in the treatment of gastroesophageal reflux disease |
WO2003041714A1 (en) * | 2001-11-13 | 2003-05-22 | James Black Foundation Limited | Benzotriazepines as gastrin and cholecystokinin receptor ligands |
WO2004101533A1 (en) * | 2003-05-12 | 2004-11-25 | Janssen Pharmaceutica, N.V. | 1, 3, 4-benzotriazepin-2-one salts and their use as cck receptor ligands |
-
2004
- 2004-11-15 GB GB0425196A patent/GB0425196D0/en not_active Ceased
-
2005
- 2005-11-14 WO PCT/GB2005/004359 patent/WO2006051312A1/en active Application Filing
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- 2007-06-15 GB GB0711660A patent/GB2435190A/en not_active Withdrawn
Patent Citations (3)
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WO1993012817A1 (en) * | 1991-12-20 | 1993-07-08 | Warner-Lambert Company | Therapeutic combinations useful in the treatment of gastroesophageal reflux disease |
WO2003041714A1 (en) * | 2001-11-13 | 2003-05-22 | James Black Foundation Limited | Benzotriazepines as gastrin and cholecystokinin receptor ligands |
WO2004101533A1 (en) * | 2003-05-12 | 2004-11-25 | Janssen Pharmaceutica, N.V. | 1, 3, 4-benzotriazepin-2-one salts and their use as cck receptor ligands |
Non-Patent Citations (3)
Title |
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BOGZA, S. L. ET AL.: "Synthesis of Benzo[c]pyrylium Salts from 2-(3,4-Dimethoxyphenyl)succinic Acid Derivatives and Their Transformations", ZH. ORG. KHIM., vol. 32, no. 4, 1996, pages 596 - 603 * |
CHAMBERS, M. S. ET AL.: "A CCK-B ANTAGONISTS IN THE CONTROL OF ANXIETY AND GASTRIC ACID SECRETION", PROGRESS IN MEDICINAL CHEMISTRY, ELSEVIER, AMSTERDAM, NL, vol. 37, 2000, pages 45 - 81, XP000917108, ISSN: 0079-6468 * |
DATABASE BEILSTEIN Beilstein Institute zur Förderung der Wissenschaften, Frankfurt/Main, DE; XP002368134 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014026997A1 (en) | 2012-08-16 | 2014-02-20 | Bayer Pharma Aktiengesellschaft | 2,3-benzodiazepines |
WO2014128067A1 (en) | 2013-02-19 | 2014-08-28 | Bayer Pharma Aktiengesellschaft | Bicyclo 2,3-benzodiazepines and spirocyclically substituted 2,3-benzodiazepines |
WO2014128070A1 (en) | 2013-02-22 | 2014-08-28 | Bayer Pharma Aktiengesellschaft | Pyrrolo- and pyrazolo-triazolodiazepines as bet-protein inhibitors for treating hyperproliferative diseases |
WO2014128111A1 (en) | 2013-02-22 | 2014-08-28 | Bayer Pharma Aktiengesellschaft | 4-substituted pyrrolo- and pyrazolo-diazepines |
US10709714B2 (en) | 2013-11-22 | 2020-07-14 | Clifton Life Sciences LLC | Gastrin antagonists for treatment and prevention of osteoporosis |
WO2015121226A1 (en) * | 2014-02-13 | 2015-08-20 | Bayer Pharma Aktiengesellschaft | 6-substituted 2,3-benzodiazepines |
WO2017005711A1 (en) * | 2015-07-09 | 2017-01-12 | Bayer Pharma Aktiengesellschaft | Phosphorous-and sulfur-substituted benzodiazepine derivatives |
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GB0711660D0 (en) | 2007-07-25 |
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