发明授权
US4585781A Heterocyclic derivatives 失效
杂环衍生物

Heterocyclic derivatives
摘要:
This invention relates to compounds of the general formula (I) ##STR1## and physiologically acceptable salts and hydrates thereof, in which R.sub.1 represents a hydrogen atom or an alkyl, alkanoyl, aroyl or trifluoroalkyl group;R.sub.2 represents a hydrogen atom or an alkyl or alkenyl group or C.sub.2-6 alkyl group substituted by a hydroxy or alkoxy group;X represents a sulphur atom or NH;Y represents an oxygen or sulphur atom or a bond;m represents 1, 2 or 3; andn represents 2, 3 or 4.The compounds show pharmacological activity as selective histamine H.sub.2 -antagonists.
公开/授权文献
信息查询
0/0