An optical isomer selected from the group consisting of (2'R),(3R)-3,4-dihydro-8-(2'-hydroxy-3'-isopropylamino)propoxy-3-nitroxy-2 H-1-benzopyran, (2'S),(3R)-3,4-dihydro-8-(2'-hydroxy-3'-isopropylamino)propoxy-3-nitroxy-2 H-1-benzopyran and acid addition salts of these isomers, process for producing these isomers and a pharmaceutical composition thereof useful for the treatment of cardiovascular diseases.
一种光学异构体,选自以下组合:(2'R),(3R)-3,4-二氢-8-(2'-羟基-3'-异丙基
氨基)丙氧基-
3-硝基-2 H-1-苯并
吡喃,(2'S),(3R)-3,4-二氢-8-(2'-羟基-3'-异丙基
氨基)丙氧基-
3-硝基-2 H-1-苯并
吡喃及这些异构体的酸盐加成物,制备这些异构体的方法以及用于治疗心血管疾病的制药组合物。