Synthesis and biological evaluation of novel triptolide analogues for anticancer activity
摘要:
Three types of novel triptolide analogues with 9,11-olefin (3-5), five-membered unsaturated lactam ring (6-7) or A/B cis ring junction (8-14) were synthesized. Although with 9,11-olefin instead of 9,11-beta-epoxide, compound 4a was much more active than the parent natural triptolide (1) with the lowest IC50 value of 0.05 nM for SKOV-3 cells, clearly challenging the traditional viewpoint on the necessity of 9,11-beta-epoxide group of triptolide. In addition, structure-activity relationships for three classes of compounds were studied. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis and biological evaluation of novel triptolide analogues for anticancer activity
摘要:
Three types of novel triptolide analogues with 9,11-olefin (3-5), five-membered unsaturated lactam ring (6-7) or A/B cis ring junction (8-14) were synthesized. Although with 9,11-olefin instead of 9,11-beta-epoxide, compound 4a was much more active than the parent natural triptolide (1) with the lowest IC50 value of 0.05 nM for SKOV-3 cells, clearly challenging the traditional viewpoint on the necessity of 9,11-beta-epoxide group of triptolide. In addition, structure-activity relationships for three classes of compounds were studied. (C) 2010 Elsevier Ltd. All rights reserved.
New facile enantio- and diastereo-selective syntheses of (−)-triptonide and (−)-triptolide
作者:Hongrui Zhang、Haifeng Li、Jijun Xue、Rui Chen、Ying Li、Yu Tang、Chunxin Li
DOI:10.1039/c3ob42183j
日期:——
A novelformal asymmetric synthesis of (−)-triptonide and (−)-triptolide, featuring a new alternative access to their known key intermediate 4, has been achieved through two synthetic routes in 9 steps with 13.6% total yield and 10 steps with 18.5% overall yield, respectively. This synthesis is scalable and hence has high potential for application to further synthetic elaboration and biologic investigation
Synthesis and biological evaluation of novel triptolide analogues for anticancer activity
作者:Bing Zhou、Zehong Miao、Gang Deng、Jian Ding、Yaxi Yang、Huijin Feng、Yuanchao Li
DOI:10.1016/j.bmcl.2010.08.106
日期:2010.11
Three types of novel triptolide analogues with 9,11-olefin (3-5), five-membered unsaturated lactam ring (6-7) or A/B cis ring junction (8-14) were synthesized. Although with 9,11-olefin instead of 9,11-beta-epoxide, compound 4a was much more active than the parent natural triptolide (1) with the lowest IC50 value of 0.05 nM for SKOV-3 cells, clearly challenging the traditional viewpoint on the necessity of 9,11-beta-epoxide group of triptolide. In addition, structure-activity relationships for three classes of compounds were studied. (C) 2010 Elsevier Ltd. All rights reserved.