申请人:Hoffmann-La Roche Inc.
公开号:US04565869A1
公开(公告)日:1986-01-21
Novel pyrimidinedicarbamates of the formula ##STR1## wherein R is lower alkyl or (lower alkyloxy)-(lower alkyl) and X is a leaving group, can be manufactured by carbamoylating the corresponding free diamines. They are valuable intermediates and can be used, for example, for the manufacture of corresponding oxadiazolopyrimidines of the formula ##STR2## and pharmaceutically acceptable salts thereof. The latter have valuable long-lasting vasodilating and/or bloodpressure lowering properties and are accordingly suitable especially for the treatment of vascular-conditioned hypertensions or as vasodilators in the case of peripheral blood supply disorders.
根据上述公式,其中R为较低的烷基或(较低的烷氧基)-(较低的烷基),X为离去基团,可以通过对应的自由二胺进行碳酰化来制造公式##STR1##的新型嘧啶二氨基甲酸酯。它们是有价值的中间体,可以用于制造相应的公式##STR2##的噁唑嘧啶并且其药用盐。后者具有有价值的持久的扩血管和/或降血压特性,因此特别适用于治疗血管相关性高血压或作为外周血液供应障碍情况下的扩血管剂。