10-脱乙酰基巴卡丁 III 在
copper diacetate 作用下,
以
甲醇 为溶剂,
以95%的产率得到10-dehydro-10-deacetylbaccatin III (V)
参考文献:
名称:
Synthesis and evaluation of C-seco paclitaxel analogues
摘要:
Starting from 7,9-diTes-10-dehydro C-secobaccatin III (4a), C-seco analogues of paclitaxel retaining biological activity were synthesised. (C) 1997 Elsevier Science Ltd.
Convergent Process for the Synthesis of Taxane Derivatives
申请人:Henri John T.
公开号:US20070225510A1
公开(公告)日:2007-09-27
The present invention is broadly directed to novel compounds useful for the synthesis of biologically active compounds, including taxane derivatives, and convergent processes for the preparation of these taxane derivatives and their intermediates.
CONVERGENT PROCESS FOR THE SYNTHESIS OF TAXANE DERIVATIVES.
申请人:Henri John T.
公开号:US20090306400A1
公开(公告)日:2009-12-10
The present invention is broadly directed to novel compounds useful for the synthesis of biologically active compounds, including taxane derivatives, and convergent processes for the preparation of these taxane derivatives and their intermediates.
Starting from 7,9-diTes-10-dehydro C-secobaccatin III (4a), C-seco analogues of paclitaxel retaining biological activity were synthesised. (C) 1997 Elsevier Science Ltd.
The Reductive Fragmentation of 7-Hydroxy-9,10-dioxotaxoids
The retro-aldol reductivefragmentation of different structural types of 7-hydroxy-9,10-dioxotaxoids was investigated, showing that the reaction is typical of taxanes and requires cerium(III) promotion with NaBH4 in protic medium and alkylboron (aluminium) hydrides in aprotic solvents. The resulting 7,8-seco-taxanes are key intermediates for the synthesis of a novel class of anticancer taxanes endowed