申请人:BRYN MAWR COLLEGE
公开号:EP1260507A1
公开(公告)日:2002-11-27
An efficient protocol for the synthesis of taxol, taxol analogs, and their intermediates is described. The process includes the attachment of the taxol A-ring side chain to baccatin III and for the synthesis of taxol and taxol analogs with variable A-ring side chain structures. A rapid and highly efficient esterification of O-protected isoserine and 3-phenylisoserine acids having N-benzyoloxycarbonyl groups to the C-13 hydroxyl of 7-O-protected baccatin III is followed by a deprotection-acylation sequence to make taxol, calphalomanninne and various analogs, including photoaffinity labeling candidates.
本文介绍了一种有效的紫杉醇、紫杉醇类似物及其中间体的合成协议。该过程包括将紫杉醇A环侧链连接到紫杉醇前体baccatin III上,以及用具有可变A环侧链结构的化合物合成紫杉醇和紫杉醇类似物。通过快速高效的酯化反应,将O保护的异丝氨酸和3-苯基异丝氨酸酸与N-苄氧羰基基团连接到7-O保护的baccatin III的C-13羟基上,然后进行去保护-酰化序列,制备紫杉醇、卡法洛曼宁和各种类似物,包括光亲和标记候选物。