1
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Wu L, Hao Y, Liu Y, Wang Q. NIS-mediated oxidative arene C(sp 2)-H amidation toward 3,4-dihydro-2(1H)-quinolinone, phenanthridone, and N-fused spirolactam derivatives. Org Biomol Chem 2019; 17:6762-6770. [PMID: 31245805 DOI: 10.1039/c9ob01277j] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new radical-mediated intramolecular arene C(sp2)-H amidation of 3-phenylpropanamides or [1,1'-biphenyl]-2-carboxamides was developed to prepare a series of 3,4-dihydro-2(1H)-quinolinone and phenanthridone derivatives in moderate to excellent yields (33-94%). Spirolactams could also be obtained using this protocol.
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Affiliation(s)
- Lingang Wu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P.R. China.
| | - Yanan Hao
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P.R. China.
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P.R. China.
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P.R. China.
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2
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Grice CA, Tays K, Khatuya H, Gustin DJ, Butler CR, Wei J, Sehon CA, Sun S, Gu Y, Jiang W, Thurmond RL, Karlsson L, Edwards JP. The SAR of 4-substituted (6,6-bicyclic) piperidine cathepsin S inhibitors. Bioorg Med Chem Lett 2006; 16:2209-12. [PMID: 16458510 DOI: 10.1016/j.bmcl.2006.01.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2005] [Revised: 01/09/2006] [Accepted: 01/10/2006] [Indexed: 11/19/2022]
Abstract
A series of competitive, reversible cathepsin S (CatS) inhibitors was investigated. An earlier disclosure detailed the discovery of the 4-(2-keto-1-benzimidazolinyl)-piperidin-1-yl moiety as an effective replacement for the 4-arylpiperazin-1-yl group found in our screening hit. Continued investigation into replacements for the 4-aryl piperazine resulted in the identification of potentially useful CatS inhibitors with enzymatic and cellular activity similar to that of JNJ 10329670 as disclosed in a previous publication.
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Affiliation(s)
- Cheryl A Grice
- Johnson and Johnson Pharmaceutical Research and Development, L.L.C., 3210 Merryfield Row, San Diego, CA 92121, USA.
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3
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Brunschweiger A, Müller CE. [The medicinal chemistry of diuretics]. PHARMAZIE IN UNSERER ZEIT 2006; 35:310-20. [PMID: 16886507 DOI: 10.1002/pauz.200600178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
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4
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Shimada Y, Taniguchi N, Matsuhisa A, Akane H, Kawano N, Suzuki T, Tobe T, Kakefuda A, Yatsu T, Tahara A, Tomura Y, Kusayama T, Wada KI, Tsukada J, Orita M, Tsunoda T, Tanaka A. Synthesis and biological activity of novel 4,4-difluorobenzazepine derivatives as non-peptide antagonists of the arginine vasopressin V1A receptor. Bioorg Med Chem 2005; 14:1827-37. [PMID: 16290163 DOI: 10.1016/j.bmc.2005.10.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2005] [Revised: 10/19/2005] [Accepted: 10/20/2005] [Indexed: 11/25/2022]
Abstract
To find potent and selective antagonists of the arginine vasopressin (AVP) V1A receptor, optimization studies of compounds structurally related to (Z)-N-{4'-[(4,4-difluoro-5-carbamoylmethylidene-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl)carbonyl]phenyl}carboxamide were performed. The synthesis and pharmacological properties of these compounds are described. We first investigated the effect of the carboxamide moiety, and found that a 2-methylfuran-3-carbonyl group at this position increased V1A binding affinity and selectivity for the V1A receptor versus the V2 receptor. The amino group of the 5-carbamoylmethylidene moiety was also examined, and a 4-piperidinopiperidino group was found to be optimal at this position. The hemifumarate of compound 12l (YM218) was shown to exhibit potent binding affinity, V1A receptor selectivity, and in vivo antagonist activity.
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Affiliation(s)
- Yoshiaki Shimada
- Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 300-2698, Japan.
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5
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Shimada Y, Akane H, Taniguchi N, Matsuhisa A, Kawano N, Kikuchi K, Yatsu T, Tahara A, Tomura Y, Kusayama T, Wada KI, Tsukada J, Tsunoda T, Tanaka A. Preparation of Highly Potent and Selective Non-Peptide Antagonists of the Arginine Vasopressin V1A Receptor by Introduction of a 2-Ethyl-1H-1-imidazolyl Group. Chem Pharm Bull (Tokyo) 2005; 53:764-9. [PMID: 15997131 DOI: 10.1248/cpb.53.764] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To find a new series of arginine vasopressin (AVP) V1A receptor antagonists, the influence of the 2-phenyl group of 2-phenyl-4'-[(2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl)carbonyl]benzanilide (7) was investigated. Replacement of the 2-phenyl group by a 2-ethyl-1H-imidazol-1-yl group was effective in yielding a V1A-selective compound. Moreover, this imidazolyl group was introduced in the same position in YM-35471 (6), and further studies of these compounds were performed. Consequently, we found that the (Z)-4'-({4,4-difluoro-5-[(N-cyclopropylcarbamoyl)methylene]-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl}carbonyl)-2-(2-ethyl-1H-1-imidazol-1-yl)benzanilide (9f) exhibited highly potent affinity and selectivity, and was the most potent antagonist for the V1A receptor among our compounds. The synthesis and pharmacological evaluation of these compounds are described in this paper.
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Affiliation(s)
- Yoshiaki Shimada
- Institute for Drug Discovery Research, Yamanouchi Pharmaceutical Co., Ltd., Tsukuba, Ibaraki, Japan.
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6
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Cho H, Murakami K, Nakanishi H, Fujisawa A, Isoshima H, Niwa M, Hayakawa K, Hase Y, Uchida I, Watanabe H, Wakitani K, Aisaka K. Synthesis and structure-activity relationships of 5,6,7,8-tetrahydro-4H-thieno[3,2-b]azepine derivatives: novel arginine vasopressin antagonists. J Med Chem 2004; 47:101-9. [PMID: 14695824 DOI: 10.1021/jm030287l] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A variety of novel heterocyclic compounds having thienoazepine, pyrroloazepine, furoazepine, and thienodiazepine skeletons were synthesized, most of which exhibited potent antagonism of [(3)H]-AVP specific binding in assays using rat liver (V1), rat kidney (V2), human platelet plasma membranes, and recombinant human CHO cells (V2), as well as antagonizing AVP-induced hypertension in rats (V1, intravenous) and showing a diuretic effect in rats (V2, oral). By detailed studies of the structure-activity relationships of these compounds, the thienoazepine derivative 1 was found to be a very potent combined V1 and V2 antagonist. After further pharmacological and toxicological evaluation as well as physical properties, the hydrochloride 2 (JTV-605) of compound 1 was selected for clinical studies as a potent AVP antagonist with a long duration of action.
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Affiliation(s)
- Hidetsura Cho
- Central Pharmaceutical Research Institute, Japan Tobacco, Inc., 1-1, Murasaki-cho, Takatsuki, Osaka, 569-1125, Japan.
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7
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Shimada Y, Taniguchi N, Matsuhisa A, Yatsu T, Tahara A, Tanaka A. Preparation of non-peptide, highly potent and selective antagonists of arginine vasopressin V1A receptor by introduction of alkoxy groups. Chem Pharm Bull (Tokyo) 2003; 51:1075-80. [PMID: 12951451 DOI: 10.1248/cpb.51.1075] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of compounds structurally related to 4'-[(4,4-difluoro-5-methylidene-2,3,4,5-tetrahydro-1H-1-benzoazepin-1-yl)carbonyl]benzanilide were synthesized and evaluated for arginine vasopressin (AVP) antagonistic activity. Compounds with alkoxy groups (especially ethoxy group) at the 2'-position of benzanilide possessed potent affinity and selectivity for the V1A receptor versus V2 receptor. Further study has shown that the introduction of 4,4-dimethylaminopiperidino and morpholino groups at carbonylmethylene exhibited more potent affinity and selectivity for V1A receptors. Consequently, we found that the (Z)-4'-([4,4-Difluoro-5-[(4-dimethylaminopiperidino)carbonylmethylene]-2,3,4,5-tetrahydro-1H-1-benzoazepin-1-yl]carbonyl)-2-ethoxybenzanilide monohydrochloride (8d) and the (Z)-4'-[(4,4-Difluoro-5-morpholinocarbamoylethylene-2,3,4,5-tetrahydro-1H-1-benzoazepin-1-yl)carbonyl]-2-ethoxybenzanilide (8q) exhibited potent and selective V1A receptor antagonist activity. The synthesis and pharmacological properties of these compounds are detailed in this paper.
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Affiliation(s)
- Yoshiaki Shimada
- Institute for Drug Discovery Research, Yamanouchi Pharmaceutical Co., Ltd., Tsukuba, Ibaraki, Japan.
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8
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Matthews JM, Greco MN, Hecker LR, Hoekstra WJ, Andrade-Gordon P, de Garavilla L, Demarest KT, Ericson E, Gunnet JW, Hageman W, Look R, Moore JB, Maryanoff BE. Synthesis and biological evaluation of novel indoloazepine derivatives as non-peptide vasopressin V2 receptor antagonists. Bioorg Med Chem Lett 2003; 13:753-6. [PMID: 12639574 DOI: 10.1016/s0960-894x(02)01059-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of novel 3,4,5,6-tetrahydro-1H-azepino[4,3,2-cd]indoles was synthesized and tested for vasopressin receptor antagonist activity. We identified compounds with high affinity for the human V2 receptor and good selectivity over the human V1a receptor. Compound 6c bound to V2 receptors with an IC(50) value of 20 nM, had >100-fold selectivity over V1a receptors, and inhibited cAMP formation in a cellular V2 functional assay with an IC(50) value of 70 nM.
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Affiliation(s)
- Jay M Matthews
- Drug Discovery, Johnson & Johnson Pharmaceutical Research & Development, Spring House, PA 19477-0776, USA.
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9
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Lemaire W, O'Brien JA, Burno M, Chaudhary AG, Dean DC, Williams PD, Freidinger RM, Pettibone DJ, Williams DL. A nonpeptide oxytocin receptor antagonist radioligand highly selective for human receptors. Eur J Pharmacol 2002; 450:19-28. [PMID: 12176104 DOI: 10.1016/s0014-2999(02)02048-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel, potent nonpeptide oxytocin receptor antagonist (1-(1-(2-(2,2,2-trifluoroethoxy)-4-(1-methylsulfonyl-4-piperidinyloxy) phenylacetyl)-4-piperidinyl)-3,4-dihydro-2(1H)-quinolinone) has been identified that can be labeled to high specific activity with [35S]. In binding studies, this compound exhibits sub-nanomolar affinity and a high degree of selectivity (900-1800-fold) for human oxytocin receptors compared to human vasopressin receptors. This compound appears suitable for studying the pharmacology of oxytocin receptors in human and nonhuman primate tissues, for which there is currently a paucity of highly selective tools. It may also be useful as a nonlabeled competitor or as a radioligand in autoradiographic studies of oxytocin receptor localization in these tissues.
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Affiliation(s)
- Wei Lemaire
- Department of Neuroscience, Merck Research Laboratories, West Point, PA 19486, USA
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10
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Kakefuda A, Suzuki T, Tobe T, Tsukada J, Tahara A, Sakamoto S, Tsukamoto SI. Synthesis and pharmacological evaluation of 5-(4-biphenyl)-3-methyl-4-phenyl-1,2,4-triazole derivatives as a novel class of selective antagonists for the human vasopressin V(1A) receptor. J Med Chem 2002; 45:2589-98. [PMID: 12036368 DOI: 10.1021/jm010544r] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of 5-(4-biphenyl)-3-methyl-4-phenyl-1,2,4-triazole derivatives were prepared and evaluated as selective antagonists for the human vasopressin V(1A) receptor. The compounds were examined for their affinity to the cloned human V(1A) receptor (hV(1A)) and selectivity vs the cloned human V(2) receptor (hV(2)). By utilizing the structure-activity relationship on 4,4-difluoro-5-methylidene-2,3,4,5-tetrahydrobenzazepine derivatives as dual antagonists for the V(1A) and V(2) receptors in our previous study, we found that substituting the methoxy group at the 2-position of the 4-phenyl ring with (4-methylpiperazin-1-yl)alkoxy moieties brought about marked improvement of both affinity to hV(1A) and selectivity vs hV(2). Further introduction of a methyl group into the 6-position of the 4-phenyl ring resulted in additional improvement of selectivity. One particular compound, 5-(4-biphenyl)-3-methyl-4-[2-[6-(4-methyl-1-piperazinyl)hexyloxy]phenyl]-1,2,4-triazole (19) showed potent affinity to hV(1A) with a K(i) value of 1.04 nM and high selectivity with a 1700-fold selectivity vs hV(2). We also found marked differences in the affinity of compounds in this series between the human and the rat receptors. Compound 19 was further examined for its V(1A) receptor antagonist activity in rats. As a result, 19 demonstrated antagonist activities toward an arginine vasopressin-induced increase in diastolic blood pressure after intravenous or oral administration and long-lasting oral activity.
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Affiliation(s)
- Akio Kakefuda
- Institute for Drug Discovery Research, Yamanouchi Pharmaceutical Co. Ltd., 21 Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan.
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11
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Wyatt PG, Allen MJ, Chilcott J, Foster A, Livermore DG, Mordaunt JE, Scicinski J, Woollard PM. Identification of potent and selective oxytocin antagonists. Part 1: indole and benzofuran derivatives. Bioorg Med Chem Lett 2002; 12:1399-404. [PMID: 11992786 DOI: 10.1016/s0960-894x(02)00159-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Studies to discover novel, potent and selective oxytocin antagonists are reported. Combinatorial libraries designed to find novel replacements of fragments of oxytocin antagonist L-371,257, identified pyrimidine, thiazole, indole and benzofuran as potential alternatives to the benzoic acid moiety of L-371,257. Additional investigations identified indole and benzofuran derivatives with potent oxytocin antagonist activity.
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Affiliation(s)
- Paul G Wyatt
- Department of Medicinal Chemistry, GlaxoSmithKline, Medicines Research Centre, Gunnels Wood Road, Stevenage, SG1 2NY, Herts, UK
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12
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Kakefuda A, Tsukada J, Kusayama T, Tahara A, Tsukamoto SI. N-Methylbenzanilide derivatives as a novel class of selective V(1A) receptor antagonists. Bioorg Med Chem Lett 2002; 12:229-32. [PMID: 11755361 DOI: 10.1016/s0960-894x(01)00723-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
During our efforts to develop a novel class of selective V(1A) receptor antagonists, the N-methylbenzanilide structure was applied to a 4,4-difluoro-1-benzazepine derivative, 4, which is a selective V(1A) receptor antagonist. Further structural modifications gave 16a with high V(1A) affinity and V(2)/V(1A) selectivity (K(i)=5.71 nM, V(2)/V(1A)=140) and potent V(1A) receptor antagonist activity (ID(50)=0.0080 mg/kg iv).
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Affiliation(s)
- Akio Kakefuda
- Institute for Drug Discovery Research, Yamanouchi Pharmaceutical Co. Ltd., 21Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan.
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13
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Weis R, Schweiger K, Seebacher W. 2-Substituted 4-anilinopiperidines from 2H-thiopyran-2-thiones. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00830-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Gupta SP. Quantitative structure-activity relationships of cardiotonic agents. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 2001; 55:235-82. [PMID: 11127965 DOI: 10.1007/978-3-0348-8385-6_7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Quantitative structure-activity relationships (QSARs) of different cardiotonic agents are presented. A critical analysis of all QSARs provides a very vivid picture of the mechanisms of varying cardiotonic agents. The cardiotonics can be broadly put into 2 categories: cardiac glycosides and nonglycoside cardiotonics, which include phosphodiesterase of type III (PDE III) inhibitors, sympathomimetic (adrenergic) stimulants, A1-selective adenosine antagonists, Ca2+ channel activators and vasopressin antagonists. For cardiac glycosides, QSARs reveal that the position of carbonyl oxygen in their lactone moiety and shifting of the lactone ring from its original position or its replacement by another group would be crucial for their activity. The carbonyl group or its isostere like CN is indicated to be the sole binding entity and the hydrogen bonding through this group is considered to be the most likely binding force. For nonglycoside cardiotonics that include PDE III inhibitors and A1-selective antagonists, a five-point model has been established for their activity, the salient features of which are: (1) the presence of a strong dipole, (2) an adjacent acidic proton, (3) a methyl-sized lipophilic space, (4) a relatively flat overall topography and (5) a basic or hydrogen-bond acceptor site opposite to the dipole. For Ca2+ channel activators, the importance of steric, electrostatic, lipophilic and hydrogen-bonding properties of molecules is indicated, while for vasopressin antagonists the lipophilic and electronic properties are suggested to be the most important.
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Affiliation(s)
- S P Gupta
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, India
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15
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Kondo K, Ogawa H, Shinohara T, Kurimura M, Tanada Y, Kan K, Yamashita H, Nakamura S, Hirano T, Yamamura Y, Mori T, Tominaga M, Itai A. Novel design of nonpeptide AVP V(2) receptor agonists: structural requirements for an agonist having 1-(4-aminobenzoyl)-2,3,4, 5-tetrahydro-1H-1-benzazepine as a template. J Med Chem 2000; 43:4388-97. [PMID: 11087564 DOI: 10.1021/jm000108p] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The discovery of a series of nonpeptide arginine vasopressin V(2) receptor agonists is described. After identifying the aniline derivative 8 as our lead compound from the metabolites of compound 7 that showed antidiuretic activity by po administration to Brattleboro rats, improvements in the in vitro potency involving evaluations of the structural requirements for agonist action and optimizing the structure of the benzoyl moiety have been intensively undertaken. These studies led to compounds 16g, 19a, and 23b,h,i that show potent agonist activity for the V(2) receptor.
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Affiliation(s)
- K Kondo
- Second Tokushima Institute of New Drug Research, Otsuka Pharmaceutical Company, 463-10 Kagasuno Kawauchi-cho, Tokushima 771-0192, Japan.
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16
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Nakamura S, Yamamura Y, Itoh S, Hirano T, Tsujimae K, Aoyama M, Kondo K, Ogawa H, Shinohara T, Kan K, Tanada Y, Teramoto S, Sumida T, Nakayama S, Sekiguchi K, Kambe T, Tsujimoto G, Mori T, Tominaga M. Characterization of a novel nonpeptide vasopressin V(2)-agonist, OPC-51803, in cells transfected human vasopressin receptor subtypes. Br J Pharmacol 2000; 129:1700-6. [PMID: 10780976 PMCID: PMC1571993 DOI: 10.1038/sj.bjp.0703221] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
We discovered the first nonpeptide arginine-vasopressin (AVP) V(2)-receptor agonist, OPC-51803. Pharmacological properties of OPC-51803 were elucidated using HeLa cells expressing human AVP receptor subtypes (V(2), V(1a) and V(1b)) and compared with those of 1-desamino-8-D-arginine vasopressin (dDAVP), a peptide V(2)-receptor agonist. OPC-51803 and dDAVP displaced [(3)H]-AVP binding to human V(2)- and V(1a)-receptors with K(i) values of 91.9+/-10.8 nM (n = 6) and 3.12+/-0.38 nM (n = 6) for V(2)-receptors, and 819+/-39 nM (n = 6) and 41.5+/-9.9 nM (n = 6) for V(1a)-receptors, indicating that OPC-51803 was about nine times more selective for V(2)-receptors, similar to the selectivity of dDAVP. OPC-51803 scarcely displaced [(3)H]-AVP binding to human V(1b)-receptors even at 10(-4) M, while dDAVP showed potent affinity to human V(1b)-receptors with the K(i) value of 13.7+/-3.2 nM (n = 4). OPC-51803 concentration-dependently increased cyclic adenosine 3', 5'-monophosphate (cyclic AMP) production in HeLa cells expressing human V(2)-receptors with an EC(50) value of 189+/-14 nM (n = 6). The concentration-response curve for cyclic AMP production induced by OPC-51803 was shifted to the right in the presence of a V(2)-antagonist, OPC-31260. At 10(-5) M, OPC-51803 did not increase the intracellular Ca(2+) concentration ([Ca(2+)](i)) in HeLa cells expressing human V(1a)-receptors. On the other hand, dDAVP increased [Ca(2+)](i) in HeLa cells expressing human V(1a)- and V(1b)-receptors in a concentration-dependent fashion. From these results, OPC-51803 has been confirmed to be the first nonpeptide agonist for human AVP V(2)-receptors without agonistic activities for V(1a)- and V(1b)-receptors. OPC-51803 may be useful for the treatment of AVP-deficient pathophysiological states and as a tool for AVP researches.
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Affiliation(s)
- S Nakamura
- Second Tokushima Institute of New Drug Research, Otsuka Pharmaceutical Co. Ltd., 463-10, Kagasuno, Kawauchi-cho, Tokushima 771-0192, Japan.
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17
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Ohtake Y, Naito A, Hasegawa H, Kawano K, Morizono D, Taniguchi M, Tanaka Y, Matsukawa H, Naito K, Oguma T, Ezure Y, Tsuriya Y. Novel vasopressin V2 receptor-selective antagonists, pyrrolo[2,1-a]quinoxaline and pyrrolo[2,1-c][1,4]benzodiazepine derivatives. Bioorg Med Chem 1999; 7:1247-54. [PMID: 10428398 DOI: 10.1016/s0968-0896(99)00049-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The intent of the work was to study the structure-activity relationships of AVP receptor antagonists bearing a chiral ring as a partial structure since such studies had been reported for only achiral compounds. In the present paper, we deal with compounds consisting of the chiral tricyclic hetero ring (1,2,3,3a,4,5-hexahydropyrrolo[1,2-a]quinoxaline and 1,2,3,10,11,11a-hexahydro-1H-pyrrolo[2,1-c][1,4]benzodiazepine) and 2-phenylbenzanilide analogues. These compounds exhibited a highly selective affinity for V2 receptor, and their stereochemical configuration had a great influence on V2 receptor binding. VP-343 (N-[4-[[(2S,3aR)-2-hydroxy-2,3,3a,4-tetrahydropyrrolo[1,2-a] quinoxalin-5(1H)-yl]carbonyl]phenyl]-4'-methyl[1,1'-biphenyl]-2-ca rboxamide), VP-365 (N-[4-[[(11aS)-2,3,11,11a-tetrahydro-1H-pyrrolo[2,1-c][1,4]benz odiazepin-10(5H)-yl]carbonyl]phenyl][1,1'-biphenyl-2-carboxamide) and VP-339 (N-[4-[[(11aS)-5-oxo-2,3,11,11a-tetrahydro-1H-pyrrolo[2,1-c][1,4]+ ++benzodiazepin-10(5H)-yl]carbonyl]phenyl][1,1'-biphenyl]-2-carboxami de) were the most potent compounds in vitro and in vivo. The IC50 values of VP-343, VP-365 and VP-339 against V2 receptor were 0.772, 1.18 and 0.216 nM, respectively. The ED300 values (dose required to increase three times the urine volume of the control rats; oral administration) of VP-343, VP-365 and VP-339 were 0.22, 0.31 and 0.78 mg/kg, respectively.
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Affiliation(s)
- Y Ohtake
- Sagami Research Laboratories, Wakamoto Pharmaceutical Co., Ltd., Ashigarakami-gun, Kanagawa, Japan
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Albright JD, Reich MF, Delos Santos EG, Dusza JP, Sum FW, Venkatesan AM, Coupet J, Chan PS, Ru X, Mazandarani H, Bailey T. 5-Fluoro-2-methyl-N-[4-(5H-pyrrolo[2,1-c]-[1, 4]benzodiazepin-10(11H)-ylcarbonyl)-3-chlorophenyl]benzamide (VPA-985): an orally active arginine vasopressin antagonist with selectivity for V2 receptors. J Med Chem 1998; 41:2442-4. [PMID: 9651149 DOI: 10.1021/jm980179c] [Citation(s) in RCA: 124] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- J D Albright
- Wyeth-Ayerst Research, Pearl River, New York 10965, and Wyeth-Ayerst Research, Princeton, New Jersey 08543-8000, USA
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19
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Affiliation(s)
- R M Freidinger
- Department of Medicinal Chemistry, Merck Research Laboratories, West Point, Pennsylvania 19486, USA
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Ogawa H, Yamashita H, Kondo K, Yamamura Y, Miyamoto H, Kan K, Kitano K, Tanaka M, Nakaya K, Nakamura S, Mori T, Tominaga M, Yabuuchi Y. Orally active, nonpeptide vasopressin V2 receptor antagonists: a novel series of 1-[4-(benzoylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzazepines and related compounds. J Med Chem 1996; 39:3547-55. [PMID: 8784453 DOI: 10.1021/jm960133o] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
This paper describes a novel series of nonpeptide vasopressin V2 receptor antagonists. It has been demonstrated that the 1-[4-(benzoylamino)benzoyl]-2,3,4,5-1H-benzazepines and 1-[4-(benzoylamino)benzoyl]-2,3,4,5-1H-1,5-benzodiazepines show a high affinity for V2 (and V1a) receptors. Among the 1-[4-(benzoylamino)benzoyl]-2,3,4,5-1H-benzazepine series, compounds with an alkylamino group on the benzazepine ring have been shown to have oral activity. A lipophilic group at the ortho position on the terminal benzoyl ring is important for both high V2 receptor affinity and oral activity. On the basis of these favorable properties, clinical testing of 31b has begun for use as an oral and iv aquaretic agent.
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Affiliation(s)
- H Ogawa
- Second Institute of New Drug Research, Otsuka Pharmaceutical Co., Tokushima, Japan
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