申请人:The Boots Company PLC
公开号:US05011931A1
公开(公告)日:1991-04-30
A process to prepare compounds of formula I ##STR1## in which n=0, 1 or 2 comprising the cyclisation of compounds of formula II ##STR2## in which n=0, 1 or 2. The cyclisation may be effected in the presence of an organic or inorganic base or thermally at a temperature in the range 40.degree.-160.degree. C. Compounds of formula II and certain analogues thereof are disclosed as cardiovascular agents.
一种制备化合物I的过程,其中n=0、1或2,包括将化合物II环化的步骤,其中n=0、1或2。环化可以在有机或无机碱的存在下或在40-160摄氏度范围内热处理的条件下进行。化合物II及其某些类似物被披露为心血管药物。