申请人:Chugai Seiyaku Kabushiki Kaisha
公开号:US06031111A1
公开(公告)日:2000-02-29
A compound represented by formula (I): ##STR1## wherein R.sub.1 represents a halogen atom, a lower alkyl group, a lower alkoxy group, a hydroxyl group, a nitro group, a trifluoromethyl group, a lower alkylthio group, an acyl group, a carboxyl group, a mercapto group or an amino group; R.sub.2 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, an alkoxy group, an acyl group, an aryl group or a heterocyclic group; R.sub.3 represents a lower alkyl group, a cycloalkyl group, an aryl group, or a heterocyclic group; R.sub.4 represents a hydrogen atom, a lower alkyl group, an aryl group, a heterocyclic group, --OR.sub.5, --SR.sub.5 or --NR.sub.6 R.sub.7 (wherein R.sub.5, R.sub.6, and R.sub.7 each represent a lower alkyl group, etc.); X and Y each represent --CH.sub.2 --, --NH-- or --O--; and n represents an integer of from 0 to 4, and an intermediate for synthesis thereof are disclosed. The compound of the present invention exhibits selective antagonism against gastrin receptors without causing side effects attributed to CCK-A receptor antagonism and is useful for the treatment and prevention of peptic ulcers, gastritis, reflux esophagitis, and Zollinger-Ellison syndrome, and for the treatment of neoplasm originating in the gastrointestinal system.
公式(I)所代表的化合物:##STR1## 其中R.sub.1代表卤素原子,低烷基,低烷氧基,羟基,硝基,三氟甲基,低烷基硫基,酰基,羧基,巯基或氨基;R.sub.2代表氢原子,低烷基,低烯基,低炔基,烷氧基,酰基,芳基或杂环基;R.sub.3代表低烷基,环烷基,芳基或杂环基;R.sub.4代表氢原子,低烷基,芳基,杂环基,--OR.sub.5,--SR.sub.5或--NR.sub.6R.sub.7(其中R.sub.5,R.sub.6和R.sub.7分别代表低烷基等);X和Y各代表--CH.sub.2--,--NH--或--O--;n代表0到4的整数,以及其合成的中间体。本发明化合物表现出对胃泌素受体的选择性拮抗作用,而不引起与CCK-A受体拮抗有关的副作用,可用于治疗和预防消化性溃疡,胃炎,反流性食管炎和佐林格-艾利森综合征,并用于治疗起源于胃肠系统的肿瘤。