Protecting Groups for Glucuronic Acid: Application to the Synthesis of New Paclitaxel (Taxol) Derivatives
作者:Abdessamad El Alaoui、Frédéric Schmidt、Claude Monneret、Jean-Claude Florent
DOI:10.1021/jo0612675
日期:2006.12.1
To prepare two new glucuronide conjugates, allyl ester and allyl carbonates were used as protecting groups of the glucuronic moiety. In this way, an aniline glycosyl carbamate spacer linked to the 2‘-OH of paclitaxel was obtained. By using palladium chemistry, an efficient one-step removal of all the allyl groups at the end of the synthesis afforded the desired compounds in good yields.
为了制备两种新的葡糖醛酸苷缀合物,将烯丙基酯和碳酸烯丙酯用作葡糖醛酸部分的保护基。以这种方式,获得了与紫杉醇的2'-OH连接的苯胺氨基甲酸酯基氨基甲酸酯间隔基。通过使用钯化学方法,在合成结束时有效一步去除所有烯丙基的方法以良好的收率提供了所需的化合物。