Structure−Antigastrin Activity Relationships of New Spiroglumide Amido Acid Derivatives
摘要:
A series of new spiroglumide amido acid derivatives was synthesized and evaluated for their ability to inhibit the binding of cholecystokinin (CCK) to guinea pig brain cortex (CCKB receptors) and peripheral rat pancreatic acini (CCKA receptors), as well as to inhibit in vitro the gastrin-induced Ca2+ increase in rabbit gastric parietal cells. Appropriate chemical manipulations of the structure of spiroglumide (CR 2194), i.e., (R)-4-(3,5-dichlorobenzamido)-5-(8-azaspiro[4,5]decan-8-yl)-5-oxopentanoic acid, led to potent and selective antagonists of CCKB/gastrin receptors. Structure-activity relationships are discussed. Some of these new derivatives, as, for example, compound 54 (CR 2622), i.e., (S)-4-[[(R)-4'-[(3,5-dichlorobenzoyl)amino]-5'-(8-azaspiro[4.5] decan-8-yl)-5'-oxo-pentanonyl]amino]-5-(1-naphthylamino)-5- oxopentanoic acid, exhibit activity 70-170 times greater than that of spiroglumide, depending upon the model used (IC50 = 2 x 10(-8) vs 140 x 10(-8) mol in binding inhibition of [H-3]-N-Me-N-Leu-CCK-8 in guinea pig brain cortex and IC50 = 0.7 x 10(-8) vs 122.3 x 10(-8) mol in inhibition of gastrin-induced Ca2+ mobilization in parietal cells of rabbit, respectively). Computer-assisted conformational analysis studies were carried out in order to compare the chemical structure of both the agonist (pentagastrin) and the antagonist (54).
通过立体保守方法合成了新的(R)-4-benzamido-5-oxopentanoic酸衍生物,并在体外评估了其抑制[125I](BH)-CCK-8与任一大鼠外周血(CCK-A)结合的能力)或中枢(CCK-B)CCK受体,或[3H] pentagastrin与兔胃腺的结合,以及在体内抑制五肽胃泌素在灌注的大鼠胃中输注所诱导的酸分泌。该系列的母体化合物(洛格米特)是CCK-A受体的第一种非肽类,有效和选择性拮抗剂。化学处理洛格鲁胺的结构导致发现CCK-B /胃泌素受体的选择性拮抗剂。讨论了构效关系。其中一些新衍生物与兔胃腺细胞和大鼠皮质膜表现出不同的亲和力,提示胃胃泌素受体(任意称为CCK-B1受体)与先前假设的与CCK中枢受体(称为CCK-B2)的关系不那么紧密。该系列中最有效的化合物,即(R)-4-(3,5-dichlorobenzamido)-5-(8-azaspiro [4.5] d
Polyamidic acid derivatives with antigastrin activity, a method for
申请人:Rotta Research Laboratorium S.p.A.
公开号:US05962502A1
公开(公告)日:1999-10-05
Derivatives of glutamic and aspartic of formula (I) are described ##STR1## where the compounds are potent receptor antagonists of gastrin at the peripheral level and of cholecystokinin at the level of the central nervous system.
POLYAMIDIC ACID DERIVATIVES WITH ANTIGASTRIN ACTIVITY, A METHOD FOR THEIR PREPARATION, AND THEIR PHARMACEUTICAL USE
申请人:ROTTA RESEARCH LABORATORIUM S.P.A.
公开号:EP0717732A1
公开(公告)日:1996-06-26
USE OF CCK-B RECEPTOR ANTAGONISTS FOR THE TREATMENT OF SLEEP DISORDERS
申请人:GLAXO WELLCOME S.p.A.
公开号:EP0785788B1
公开(公告)日:2001-12-12
[EN] POLYAMIDIC ACID DERIVATIVES WITH ANTIGASTRIN ACTIVITY, A METHOD FOR THEIR PREPARATION, AND THEIR PHARMACEUTICAL USE<br/>[FR] DERIVES D'ACIDE POLYAMIDIQUE A ACTIVITE ANTIGASTRINEMIQUE, LEUR PROCEDE DE PREPARATION ET LEUR UTILISATION PHARMACEUTIQUE
申请人:ROTTA RESEARCH LABORATORIUM S.P.A.
公开号:WO1995007261A1
公开(公告)日:1995-03-16
(EN) New derivatives of glutamic and aspartic acids of formula (I) are described. The compounds are potent receptor antagonists of gastrin at the peripheral level and of cholecystokinin at the level of the central nervous system.(FR) L'invention se rapporte à de nouveaux dérivés des acides glutamique et aspartique de la formule (I). Les composés sont de puissants antagonistes récepteurs de la gastrine au niveau périphérique et de la cholécystokinine au niveau du système nerveux central.