A process for preparing a compound of formula (V) or its enantiomer, which comprises: (a) reacting racemic aminoindan of formula (II) or its enantiomer with allylhalide in presence of a base and an organic solvent at a temperature ranging from 25 C to the reflux temperature of the solvent to give compound of formula (III) (b) reacting the compound (III) with halogenating agent in a suitable organic solvent to give a dihalo compound of formula (IV) (c) treating the dihalo compound (IV) with a suitable base to give compound (V).
制备化合物(V)或其对映体的方法包括:(a)在存在碱和有机溶剂的条件下,将
配体氨基
茚的消旋体(II)或其对映体与烯丙基卤化物反应,反应温度范围为25摄氏度至溶剂的沸点温度,得到化合物(III);(b)将化合物(III)与卤化试剂在适当的有机溶剂中反应,得到二卤化合物(IV);(c)用适当的碱处理二卤化合物(IV),得到化合物(V)。