申请人:Bristol-Myers Company
公开号:US04927970A1
公开(公告)日:1990-05-22
The present invention relates to novel intermediates of the formula ##STR1## wherein R is lower alkyl or cyclohexyl, and X is hydroxy or a conventional leaving group, and the use thereof in a process for the preparation of certain histamine H.sub.2 -antagonists.
本发明涉及公式##STR1##的新型中间体,其中R是较低的烷基或环己基,X是羟基或传统的离去基团,并且其在制备某些组胺H.sub.2-拮抗剂的过程中的应用。