Synthesis and structure-activity relationships of dual histamine H2 and gastrin receptor antagonists with modified benzodiazepine skeletons
摘要:
Three different types of dual histamine H-2 and gastrin receptor antagonists, e.g. those bearing a benzazepine, benzoxazepine, or benzothiazepine skeleton instead of the benzodiazepine one as a gastrin receptor antagonistic moiety were synthesized to reduce high hydrophobicity of parent compounds and evaluated for the dual activities. These skeletal modifications significantly potentiated the binding affinity of dual antagonists with histamine H-2, receptor but markedly diminished their binding affinity with the gastrin receptor and the gastrin versus CCK-A receptor selectivity. We evaluated in vivo gastric acid antisecretory activities for some representative compounds by the rat pylorus ligation method for 10 mg kg(-1) dose by oral route. However, they exerted only low inhibitory activities for oral dose with % inhibition values ranging between 32 and 53%. (C) 1997 Elsevier Science Ltd.
DOI:
10.1016/s0968-0896(97)00075-8
作为产物:
描述:
S-(o-Nitrophenyl)-N-acetyl-D-cysteine 在
ammonium hydroxide 作用下,
以
硫酸 为溶剂,
反应 1.0h,
以to yield 11.6 g (100% ) of product的产率得到amino-(2-nitrophenylsulfanyl)acetic acid
参考文献:
名称:
Benzothiazepine and benzoxazepine derivatives as cholecystokinin
SLADE, J.;STANTON, J. L.;BEN-DAVID, D.;MAZZENGA, G. C., J. MED. CHEM., 1985, N 10, 1517-1521
作者:SLADE, J.、STANTON, J. L.、BEN-DAVID, D.、MAZZENGA, G. C.
DOI:——
日期:——
SLADE, J.;STANTON, J. L.
作者:SLADE, J.、STANTON, J. L.
DOI:——
日期:——
BENZOTHIAZEPINE AND BENZOXAZEPINE DERIVATIVES AS CHOLECYSTOKININ RECEPTOR ANTAGONISTS
申请人:PFIZER INC.
公开号:EP0648213A1
公开(公告)日:1995-04-19
US5618808A
申请人:——
公开号:US5618808A
公开(公告)日:1997-04-08
[EN] BENZOTHIAZEPINE AND BENZOXAZEPINE DERIVATIVES AS CHOLECYSTOKININ RECEPTOR ANTAGONISTS<br/>[FR] DERIVES DE BENZOTHIAZEPINE ET DE BENZOXAZEPINE UTILISES COMME ANTAGONISTES DE RECEPTEUR DE CHOLECYSTOKININE
申请人:PFIZER INC.
公开号:WO1994001421A1
公开(公告)日:1994-01-20
(EN) The present invention relates to novel substituted benzothiazepines and benzoxazepines of formula (I), wherein R1, R2, R7, R8, R9 and X are as defined below, and to novel intermediates used in the synthesis of such compounds. Such compounds are useful in the treatment and prevention of gastrointestinal disorders, pain and anxiety disorders.(FR) Cette invention concerne de nouvelles benzoxazépines et benzothiazépines substituées de formule (I), ainsi que de nouveaux intermédiaires utilisés dans la synthèse de ces composés. Dans cette formule R1, R2, R7, R8 et R9 et X sont tels que définis ci-après. Ces composés sont utiles dans le traitement et la prévention des troubles gastro-intestinaux, de la douleur et des perturbations dues à l'anxiété.