申请人:CHUGAI SEIYAKU KABUSHIKI KAISHA
公开号:EP0685463A1
公开(公告)日:1995-12-06
A compound represented by general formula (I) and an intermediate for the synthesis thereof (wherein R₁ represents halogen, lower alkyl, lower alkoxy, hydroxy, nitro, trifluoromethyl, lower alkylthio, acyl, carboxy, mercapto or amino; R₂ represents hydrogen, lower alkyl, lower alkenyl, lower alkynyl, alkoxy, acyl, aryl or heterocycle; R₃ represents lower alkyl, cycloalkyl, aryl or heterocycle; R₄ represents hydrogen, lower alkyl, aryl, heterocycle, - OR₅, -SR₅ or -NR₆R₇ (R₅ through R₇ each representing lower alkyl, etc.); X and Y represent each - CH₂-, -NH- or -O-; and n represents 0 to 4). This compound exhibits a selective antagonism against gastrin receptors without exhibiting side effects caused by the CCK-A receptor antagonism, and hence is efficacious for the treatment and prevention of peptic ulcer, gastritis, reflux esophagitis and Zollinger-Ellison syndrome, and for the treatment of neoplasm originating in the gastrointestinal system.
通式(I)代表的化合物及其合成中间体(其中 R₁ 代表卤素、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 代表氢、低级烷基、低级烯基、低级炔基、烷氧基、酰基、芳基或杂环; R₃ 代表低级烷基、环烷基、芳基或杂环;R₄ 代表氢、低级烷基、芳基、杂环、-OR₅、-SR₅ 或 -NR₆R₇ (R₅ 至 R₇ 各自代表低级烷基等); X 和 Y 各自代表-OR₅、-SR₅ 或 -NR₆R₇ 。X和Y分别代表-CH₂-、-NH-或-O-;n代表0至4)。这种化合物对胃泌素受体具有选择性拮抗作用,而不会表现出 CCK-A 受体拮抗作用引起的副作用,因此对治疗和预防消化性溃疡、胃炎、反流性食管炎和卓林-艾利森综合征以及治疗源于胃肠道系统的肿瘤具有疗效。