申请人:BANYU PHARMACEUTICAL CO., LTD.
公开号:EP0264883A2
公开(公告)日:1988-04-27
A substituted pyridine derivative represented by the general formula
herein R¹ represents a phenyl or naphthyl group which may optionally be substituted by a substituent selected from the class consisting of a hydroxyl group, lower alkyl groups, lower alkoxy groups, cycloalkyl groups, lower alkoxycarbonyl groups, a phenyl group and halogen atoms; X represents an oxygen atom, a sulfur atom, a carbonyl group, or a group of the formula -CH(OH)- or -N(Ra)- in which Ra is hydrogen atom or a lower alkyl group; Y represents a linear or branched lower alkylene group or a vinylene group which may optionally be substituted by a lower alkyl group, with the proviso that when X is an oxygen or sulfur atom, Y represents the lower alkylene group. R² and R³ are identical or different and each represents a hydrogen atom or a lower alkyl group; R⁴ represents a hydrogen atom, a lower alkoxy group, a cycloalkyloxy group, a lower alkylthio group, a cycloalkylthio group, an aryloxy group, an aralkyloxy group or a group of the formula
in which Rb and Rc are identical or different and each represents a hydrogen atom or a lower alkyl group, or Rb and Rc, taken together, may form together with the adjacent nitrogen atom a 5- to 7-membered saturated heterocyclic ring which may optionally contain at least one additional hetero atom selected from the group consisting of oxygen, sulfur and nitrogen atoms and may optionally be substituted by a lower alkyl group; m and n are each 0 or 1, with the proviso that m and n are not 0 at the same time, or an acid addition salt thereof. This compound is useful as an antiulcer agent.
通式如下的取代吡啶衍生物
其中 R¹ 代表苯基或萘基,可任选被选自羟基、低级烷基、低级烷氧基、环烷基、低级烷氧羰基、苯基和卤素原子的取代基取代;X 代表氧原子、硫原子、羰基或式-CH(OH)-或-N(Ra)-的基团,其中 Ra 为氢原子或低级烷基;Y 代表直链或支链低级亚烷基或乙烯基,可选择被低级烷基取代,但当 X 为氧原子或硫原子时,Y 代表低级亚烷基。R² 和 R³ 相同或不同,各自代表氢原子或低级烷基;R⁴ 代表氢原子、低级烷氧基、环烷氧基、低级烷硫基、环烷硫基、芳氧基、芳烷氧基或式
其中 Rb 和 Rc 相同或不同,且各自代表一个氢原子或一个低级烷基,或 Rb 和 Rc 合在一起,可与相邻的氮原子一起形成一个 5 至 7 元饱和杂环,该杂环可任选包含至少一个选自氧、硫和氮原子组成的组的额外杂原子,并可任选被一个低级烷基取代;m 和 n 各为 0 或 1,但 m 和 n 不能同时为 0,或其酸加成盐。该化合物可用作抗溃疡剂。