The invention relates to a process for the manufacture of optically pure (R) or (S)-5-(2-aminopropyl)-2-methoxybenzenesulfonamide with D-i.e. (2S, 3S) or L-i.e. (2R, 3R)-tartaric acid to form a mixture of diastereomeric salts, separating the diastereomeric salts by fractional crystallization in a mixture of solvent systems and at the specified temperature range and contacting the individual salts so separated with a base to provide said R-(−)-5-(2-aminopropyl)-2-methoxybenzenesulfonamide or S-(+)-5-(2-amino propyl)-2-methoxybenzenesulfonamide.
本发明涉及一种制备光学纯(R)或(S)-5-(2-
氨基丙基)-2-
甲氧基苯磺酰胺的工艺,该工艺使用D-即(2S,3S)或L-即(2R,3R)-
酒石酸形成一种不对称盐混合物,通过在混合溶剂体系和指定温度范围内进行分馏结晶分离这种不对称盐混合物,并将分离出来的各个盐与碱接触,以提供所述的R-(−)-5-(2-
氨基丙基)-2-
甲氧基苯磺酰胺或S-(+)-5-(2-
氨基丙基)-2-
甲氧基苯磺酰胺。