The resolution of racemic 1-(4-methoxybenzyl)-octahydro-isoquinoline, a key intermediate in the synthesis of the antitussive agent dextromethorphan, is reported using (R)-2-(6-methoxy-2-naphthyl) propionic acid in good yields. The resolving agent and the undesired isomer of the octahydro-isoquinoline have been recovered in good yield.
据报道,使用(R)-
2-(6-甲氧基-2-萘基)丙酸以良好的收率解析了外消旋 1-(4-甲氧基苄基)-八氢
异喹啉,它是合成止咳药
右美沙芬的关键中间体。此外,还以良好的收率回收了八氢
异喹啉的分解剂和不想要的异构体。