申请人:CENTRO MARGA PARA LA INVESTIGACION S.A.
公开号:EP0277900A2
公开(公告)日:1988-08-10
Compounds constituted by ascorbyl derivatives of H²-receptor antagonists of formula
or the O-alkylidene, 5,6-diacyl, 6-acyl derivatives thereof having two to sixteen carbon atoms, or a 6-phosphate, where X may be 1, 2 or 3 and Y may be 1 or 2, R₁ and R² are both hydrogen or R₁ may be hydroxyl and R₂ hydrogen, Z being an hydrogen atom or an alkali or alkaline-earth metal, preferably sodium, potassium or calcium, and R₃ an organic base with one or more basic functional groups, having H₂-receptor antagonist properties, possibly as a salt of an organic acid, at least one mole, selected from the group constituted by aspartic acid, glutamic acid, caffeic acid, ferulic acid and gallic acid, capable of reacting with nitrous acid, and a process for the preparation of said compounds. It is also described the process for the preparation of the new compounds in the presence of fatty acids.
由式 H²-受体拮抗剂的抗坏血酸衍生物或其具有二至十六个碳原子的 O-亚烷基、5,6-二酰基、6-酰基衍生物或 6-磷酸酯构成的化合物
或其具有 2 至 16 个碳原子的 O-亚烷基、5,6-二酰基、6-酰基衍生物,或 6-磷酸,其中 X 可以是 1、2 或 3,Y 可以是 1 或 2,R₁ 和 R² 都是氢,或 R₁ 可以是羟基,R₂ 是氢,Z 是氢原子或碱金属或碱土金属,最好是钠、钾或钙、R₃是具有一个或多个碱性官能团的有机碱,具有 H₂受体拮抗剂的特性,可以是有机酸的盐,至少有一个分子选自天冬氨酸、谷氨酸、咖啡酸、阿魏酸和没食子酸组成的组,能与亚硝酸反应,以及制备上述化合物的工艺。此外,还介绍了在脂肪酸存在下制备新化合物的工艺。