申请人:Chugai Seiyaku Kabushiki Kaisha
公开号:US05952511A1
公开(公告)日:1999-09-14
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.
本发明公开了一种化合物,其由式(I)表示:##STR1##其中R1表示卤素原子、低级烷基、低级烷氧基、羟基、硝基、三氟甲基、低级烷硫基、酰基、羧基、巯基或氨基;R2表示氢原子、低级烷基、低级烯基、低级炔基、烷氧基、酰基、芳基或杂环基;R3表示低级烷基、环烷基、芳基或杂环基;R4表示氢原子、低级烷基、芳基、杂环基、--OR5、--SR5或--NR6R7(其中R5、R6和R7各自表示低级烷基等);X和Y各自表示--CH2--、--NH--或--O--;n表示0至4的整数,以及其合成中间体。本发明的化合物表现出对胃泌素受体的选择性拮抗作用,不会引起与CCK-A受体拮抗相关的副作用,适用于治疗和预防消化性溃疡、胃炎、反流性食管炎和佐林格-埃利森综合征,以及治疗源自胃肠系统的肿瘤。