The present invention relates to novel intermediates of the formula
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 H₂-antagonists.
本发明涉及式如下的新型中间体
其中 R 为低级烷基或环己基,X 为羟基或常规离去基团,并将其用于制备某些
组胺 H₂-拮抗剂的工艺中。