申请人:Leze Antoine Paul Gatson
公开号:US20080200699A1
公开(公告)日:2008-08-21
The invention concerns a method for preparing docetaxel from paclitaxel, including the following steps: a) deacylating paclitaxel, b) protecting the free hydroxy functions, in 7-, 10- and 2′-position respectively, c) debenzoylating the amine in 3′-position, into a primary amine derived for 10-deacetylbaccatine whereof the hydroxy functions in 7-, 10- and 2′-position are protected, d) functionalizing the amine with a t-butoxycarbonyl In radical to obtain a docetaxel derivative of general formula (I), wherein: X represents protecting radicals or hydrogen atoms, then, if required, e) releasing the initially protected hydroxy functions to obtain docetaxel.
该发明涉及一种从紫杉醇制备多西紫杉醇的方法,包括以下步骤:a) 去酰化紫杉醇,b) 保护7-、10-和2′-位置的自由羟基功能,c) 去苯甲酰化3′-位置的胺,形成10-去乙酰紫杉碱的原生胺,其中7-、10-和2′-位置的羟基功能被保护,d) 用t-丁氧羰基自由基对胺进行官能化,以获得一般式(I)的多西紫杉醇衍生物,其中:X代表保护基或氢原子,然后,如有必要,e) 释放最初保护的羟基功能,以获得多西紫杉醇。