申请人:——
公开号:US05859032A1
公开(公告)日:1999-01-12
A pyridine derivative or a salt thereof expressed by the following formula 1: ##STR1## wherein W represents a group expressed by the following formula 2 or formula 3; ##STR2## wherein R.sub.1 represents an alkenyloxy group; n represents 1 or 2; Ra represents a lower alkyl group; and Rb represents a halogen atom; and wherein each of R.sub.2 and R.sub.3 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, or halogenated alkyl group; Y represents a group expressed by --S--, --NH-- or --CONH--; m represents an integer of 0 to 2; and p represents 0 or 1. The pyridine derivative has an anti-ulcer effect or an antibacterial activity against Helicobacter pyroli to be available for prevention or cure of ulcers.
以下是公式1所表示的吡啶衍生物或其盐:其中W代表以下公式2或公式3所表示的基团;其中R.sub.1代表烯氧基团;n代表1或2;Ra代表较低的烷基基团;Rb代表卤素原子;其中R.sub.2和R.sub.3中的每一个代表氢原子、较低的烷基基团、较低的烷氧基团或卤代烷基团;Y代表--S--、--NH--或--CONH--所表示的基团;m代表0到2的整数;p代表0或1。该吡啶衍生物具有抗溃疡作用或对幽门螺杆菌具有抗菌活性,可用于预防或治疗溃疡。