申请人:FUJISAWA PHARMACEUTICAL CO
公开号:WO2004014879A1
公开(公告)日:2004-02-19
The present invention relates to a process for preparing a pharmaceutical starting compound compound by hydrolyzing a compound of the general formula (II): Wherein R1 is protected carboxy, R2 is lower alkoxy or higher alkoxy, A1 is an aromatic bivalent group, hererocyclic bivalent group or cyclo (lower) alkane bivalent group, and A2 is an aromatic bivalent group, heterocyclic bivalent group or cyclo (lower) alkane bivalent group, with aqueous potassium hydroxide and by treating with hydrochloric acid.
本发明涉及一种通过用水合氢氧化钾水解一般式(II)的化合物来制备医药起始化合物的过程:其中R1是保护羧基,R2是较低的烷氧基或较高的烷氧基,A1是芳香二价基团,杂环二价基团或环(较低)烷基二价基团,A2是芳香二价基团,杂环二价基团或环(较低)烷基二价基团,并通过用盐酸处理。