ent-Kaurane-based regio- and stereoselective inverse electron demand hetero-Diels-Alder reactions: synthesis of dihydropyran-fused diterpenoids.
ent-Kaurane-based regio- and stereoselective inverse electron demand hetero-Diels-Alder reactions: synthesis of dihydropyran-fused diterpenoids.
复制标题
DOI:
10.1039/c4ob01040j
复制
发表时间:
2014-11-14
影响因子:
3.2
通讯作者:
Zhou J
中科院分区:
文献类型:
--
作者:
Ding C;Wang L;Chen H;Wild C;Ye N;Ding Y;Wang T;White MA;Shen Q;Zhou J
A mild and concise approach for the construction of 3,4-dihydro-2H-pyran ring integrated into the A-ring of the natural product oridonin using an optimized inverse electron demand hetero-Diels-Alder (IED HDA) reaction is reported herein. A self-dimerization of the exocyclic enone installed in the A-ring through a homo-HDA reaction was identified to exclusively give a dimeric ent-kaurane diterpenoid with the spirochroman core. Moreover, the efficient cross-HDA cycloadditions of this enone with various vinyl ethers or vinyl sulfides, instead of its own homo-HDA dimerization, were achieved in regio- and stereoselective manners, thus providing the access to novel dihydropyran-fused diterpenoids as potential anticancer agents to overcome chemoresistance.
登录
查看更多内容
影响因子:
3.9
作者:
Cheng, Yan;Qiu, Feng;Ikejima, Takashi
通讯作者:
Ikejima, Takashi
影响因子:
5.2
作者:
Ding, Chunyong;Zhang, Yusong;Chen, Haijun;Wild, Christopher;Wang, Tianzhi;White, Mark A.;Shen, Qiang;Zhou, Jia
通讯作者:
Zhou, Jia
影响因子:
1.8
作者:
BogdanowiczSzwed, K;Palasz, A
通讯作者:
Palasz, A
影响因子:
3.8
作者:
Bruno, M;Rosselli, S;Simmonds, MSJ
通讯作者:
Simmonds, MSJ
影响因子:
5.7
作者:
Huang, Hui-Lin;Weng, Heng-You;Qu, Liang-Hu
通讯作者:
Qu, Liang-Hu