The invention provides pyridine derivatives represented by the general formula:
wherein R1 and R2 may be the same or different from each other and each stand for a hydrogen atom, a C1-6 alkyl, C1-6 alkoxy, halogenated C1-6 alkyl, (C1-6 alkoxy) carbonyl or carboxyl group or a halogen atom;
X stands for a group represented by the formula: -O-, -S-or
(wherein R3 stands for a hydrogen atom or a C1-6 alkyl, phenyl, benzyl or (C1-6 alkoxy)carbonyl group);
Z stands for
① a group represented by the general formula:
-0-(CH2)q-R5
wherein q stands for an integer of 1 to 3 and R5 stands for a halogen atom or an (C1-6 alkoxy) carbonyl, aryl or heteroaryl group,
② a group represented by the general formula:
-0-(CH2)r-0-(CH2)s-0-R6
wherein r and s each stand for an integer of 1 to 5 and R6 stands for a hydrogen atom or a C1-6 alkyl group,
③ a group represented by the formula:
④ a group represented by the general formula:
wherein t stands for an integer of 0 to 2 and A stands for a group represented by the general formula:
(wherein B stands for a group represented by the formula: -NH-, -0- or -S-), a C1-6 aklyl, (C1-6 alkoxy)carbonylmethyl, pyridyl or furyl group or a group represented by the general formula:
(wherein R7 stands for a hydrogen atom, a C1-6 alkyl or C1-6 alkoxy group or a halogen atom and w stands for an integer of 0 or 1),
⑤ a group represented by the general formula:
wherein R8 stands for an acetoxy or C1-6 alkyl group,
n stands for an integer of 0 to 2, m stands for an integer of 2 to 10, and
J and K may be the same or different from each other and each stand for a hydrogen atom or a C1-6 alkyl group,
and a pharmaceutically acceptable salt thereof.
Pharmaceutical compositions comprising these derivatives are also provided, together with the use of the derivatives for the manufacture of medicaments having therapeutic or preventative value in the treatment of peptic ulcers. Processes for preparing such pyridine derivatives are also provided.
本发明提供了由一般式表示的
吡啶衍生物:其中R1和R2可以相同或不同,分别代表
氢原子,C1-6烷基,C1-6烷
氧基,卤代C1-6烷基,(C1-6烷
氧基)羰基或羧基或卤原子;X代表由公式表示的基团:-O-,-S-或(其中R3代表
氢原子或C1-6烷基,
苯基,
苄基或(C1-6烷
氧基)羰基);Z代表①由一般式表示的基团:-0-(
CH2)q-R5,其中q为1至3的整数,R5为卤原子或(C1-6烷
氧基)羰基,芳基或杂芳基基团,②由一般式表示的基团:-0-( )r-0-( )s-0-R6,其中r和s分别为1至5的整数,R6为
氢原子或C1-6烷基基团,③由公式表示的基团:④由一般式表示的基团:其中t为0至2的整数,A代表由一般式表示的基团:(其中B代表- NH-,-0-或-S-表示的基团),C1-6烷基,(C1-6烷
氧基)羰基
甲基,
吡啶基或
呋喃基团或由一般式表示的基团:(其中R7代表
氢原子,C1-6烷基或C1-6烷
氧基基团或卤原子,w代表0或1),⑤由一般式表示的基团:其中R8代表乙酰
氧基或C1-6烷基基团,n为0至2的整数,m为2至10的整数,J和K可以相同或不同,分别代表
氢原子或C1-6烷基基团,并且其药学上可接受的盐。还提供了包含这些衍
生物的制药组合物,以及这些衍
生物在制造具有治疗或预防胃溃疡价值的药物方面的用途。还提供了制备这种
吡啶衍生物的方法。