Structure-antigastrin activity relationships of new (R)-4-benzamido-5-oxopentanoic acid derivatives
作者:Francesco Makovec、Walter Peris、Laura Revel、Roberto Giovanetti、Laura Mennuni、Lucio C. Rovati
DOI:10.1021/jm00079a003
日期:1992.1
CCK-B1 receptor) is not as closely related to the CCK central receptor (termed CCK-B2) as previously hypothesized. The antigastric activity of the most potent compound of the series, i.e. (R)-4-(3,5-dichlorobenzamido)-5-(8-azaspiro[4.5]decan- 8-yl)-5-oxopentanoic acid (compound 28, CR 2194) was further evaluated in vivo: in the first hour after administration the compound inhibits acid secretion induced
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