申请人:Halama Ales
公开号:US20100174083A1
公开(公告)日:2010-07-08
A method of preparation of Montelukast of formula (I) by reaction of the compound of formula (III) and a compound of formula (IX), characterized in that the reaction is carried out in the presence of a base, an inert solvent and a component increasing selectivity of the process, especially of a polyether of general formula (XIII), wherein R stands for hydrogen or an alkyl and the value of n varies from 1 to 40, polyethyleneglycol of general formula (XIV), wherein n=1 to 40 or a crown-ether of formulae (XV), (XVI) or (XVII).
根据公式(I)的蒙特卢卡斯特制备方法,通过化合物公式(III)和化合物公式(IX)的反应制备,其特征在于在碱、惰性溶剂和增加过程选择性的组分(特别是一般公式(XIII)的聚醚)的存在下进行反应,其中R代表氢或烷基,n值在1到40之间变化,一般公式(XIV)的聚乙二醇,其中n=1到40,或公式(XV)、(XVI)或(XVII)的冠醚。