申请人:BESSE Pascal
公开号:US20120302759A1
公开(公告)日:2012-11-29
The invention relates to a method for preparing a combretastatin derivative (I) or (II), said method including the following steps: triaryl(3,4,5-trimethoxybenzyl)phosphonium halide P
3
(III), wherein Ar denotes an aryl group selected from among phenyl or thienyl, is reacted with P
2
having formula (IV) or P′
2
having formula (V) so as to respectively obtain the compound P
4
or P′
4
, which have formulas (VI) and (VII), respectively; then, during a step for deprotection in the presence of an acid and/or a base, the compound having P
4
or P′
4
leads, after an optional purification step, to the compound having formula (I) or (II).
本发明涉及一种制备联苯杀素衍生物(I)或(II)的方法,该方法包括以下步骤:将三芳基(3,4,5-三甲氧基苯基)膦酸鹽P3(III),其中Ar代表从苯基或噻吩基中选择的芳基基团,与具有式(IV)或P′2具有式(V)的P2分别反应,以分别获得化合物P4或P′4,其具有式(VI)和式(VII);然后,在酸和/或碱的存在下进行去保护步骤,经过可选的纯化步骤后,具有P4或P′4的化合物可导致具有式(I)或(II)的化合物。