申请人:Bristol-Myers Company
公开号:US04522943A1
公开(公告)日:1985-06-11
Compounds of the formula ##STR1## wherein R.sup.12 is a leaving group, Z is S, O or CH.sub.2 and A is a phenyl, furyl, thienyl or pyridyl ring substituted by a ##STR2## moiety, in which R.sup.8 and R.sup.9 are various substituents or, when taken together with the nitrogen, may be a specified heterocyclic ring, are intermediates in the preparation of histamine H.sub.2 -antagonist anti-ulcer agents of the formula ##STR3## in which R.sup.1 and R.sup.2 are any of several specified substituents.
式为##STR1##的化合物,其中R.sup.12是一个离去基团,Z是S、O或CH.sub.2,A是一个苯基、呋喃基、噻吩基或吡啶基,它们被一个##STR2##基团取代,其中R.sup.8和R.sup.9是不同的取代基,或者与氮一起可能是一个特定的杂环环,是组成组织胺H.sub.2-拮抗剂抗溃疡药物的中间体,其分子式为##STR3##,其中R.sup.1和R.sup.2是若干指定的取代基。