Total synthesis of (±)-20S-hydroxy-1,2-dehydro-pseudoaspidospermidine via a C-H activation/transannular cyclization strategy.
Total synthesis of (±)-20S-hydroxy-1,2-dehydro-pseudoaspidospermidine via a C-H activation/transannular cyclization strategy.
复制标题
通过C-H活化/跨环环化策略全合成(±)-20S-羟基-1,2-脱氢-拟蜘蛛亚精胺
DOI:
10.1039/c7cc02699d
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发表时间:
2017
影响因子:
4.9
通讯作者:
T. Gaich
中科院分区:
文献类型:
--
作者:
C. Leitner;T. Gaich
A total synthesis to the pseudoaspidospermidine family via a C–H activation/transannular cyclization strategy has been accomplished. The applicability of this approach is showcased in the concise synthesis (ten steps) of (±)-20S-hydroxy-1,2-dehydro-pseudoaspidospermidine (4) starting from literature known compound 11. Via a joint synthetic sequence we were also able to address the related iboga alkaloid (±)-isovelbanamine (7) in nine steps. Key features of this synthesis are a transannular cyclization to generate the pseudoaspidospermidine skeleton (C–H activation) and a Witkop photocyclization reaction providing a 9-membered lactam. It is also worth mentioning that the joint synthetic sequence can be carried out on a multigram scale.
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DOI:
--
发表时间:
1963
期刊:
影响因子:
--
作者:
D. Schumann;H. Schmid
通讯作者:
H. Schmid
DOI:
--
发表时间:
1982
期刊:
影响因子:
--
作者:
T. Imanishi;H. Shin;M. Hanaoka;T. Momose;I. Imanishi
通讯作者:
I. Imanishi
影响因子:
5.2
作者:
Cheng, Bo;Sunderhaus, James D.;Martin, Stephen F.
通讯作者:
Martin, Stephen F.
影响因子:
2.1
作者:
Cheng B;Sunderhaus JD;Martin SF
通讯作者:
Martin SF
DOI:
--
发表时间:
1964
期刊:
影响因子:
--
作者:
J. Kutney;R. T. Brown;E. Piers*
通讯作者:
E. Piers*