首页>
外国专利>
New carbamates of 2 - halogenoergolines and 2 - halogenoergolenes, particularly useful as vasodilators, and their method of preparation
New carbamates of 2 - halogenoergolines and 2 - halogenoergolenes, particularly useful as vasodilators, and their method of preparation
展开▼
机译:特别适用作血管扩张药的2-卤代麦角灵和2-卤代麦角灵的新氨基甲酸酯及其制备方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Novel carbamates of 2-halogenoergolines and 2-halogenoergolenes of the general formula IMAGE are obtained from compounds of the general formula IMAGE RA, R and x y are defined in Claim 1. The non-halogenated compounds are subjected to halogenation with a compound selected from N-halogenoacylamides, chlorobenzotriazole and the like in an aprotic solvent. The reaction temperature is between -10 DEG and + 150 DEG , and the reaction product is isolated and purified by the known chemical methods. The novel compounds show interesting pharmacological properties at extremely low dosages.
展开▼