著者

細上 徹 榑谷 昌彦 東 邦彦 浅野 昌英 大屋 和美 高杉 紀雄 真船 英一 三木 藤作

出版者

The Pharmaceutical Society of Japan

雑誌

Chemical and Pharmaceutical Bulletin (ISSN:00092363)

巻号頁・発行日

vol.40, no.10, pp.2712-2719, 1992-10-25 (Released:2008-03-31)

参考文献数

18

被引用文献数

12 14

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A series of acyl derivatives of 2-(3, 4-dimethoxyphenyl)ethylamine (4) were synthesized and evaluated for their effectiveness to prevent water-immersion stress-induced gastric ulceration when given intraperitoneally to rats. Among them N-[2-(3, 4-dimethoxyphenyl)ethyl]-2-phenylaminoacetamide hydrochloride (15) had significant antiulcer activity. Further modification of the four parts of 15 revealed that only the introduction of a carbamoyl group into 2- or 3-position of the phenylamino part gave compounds (49-51, 54 and 55) which retained antiulcer activity comparable to the lead compound. However, the compounds (49-51 and 54) did not exert a prophylactic effect when administered orally except for the 3-substituted bezamide derivative 55. Alkyl substitution on the nitrogen of benzamide gave 3-[[[2-(3, 4-dimethoxyphenyl)ethyl]carbamoyl]methyl]amino-N-methylbenzamide (66, DQ-2511) and the related compounds (67, 70, 74 and 77) which all had potent antiuler activities at oral doses of 50-400 mg/kg.