共 50 条
Total Synthesis of Indole Alkaloid Alsmaphorazine D
被引:34
作者:
Zhu, Chenlong
[1
]
Liu, Zhaobo
[1
]
Chen, Guanyu
[1
]
Zhang, Kai
[1
]
Ding, Hanfeng
[1
]
机构:
[1] Zhejiang Univ, Dept Chem, Hangzhou 310028, Zhejiang, Peoples R China
关键词:
cyclization;
epimerization;
oxidative coupling;
pyrroloindoles;
total synthesis;
ENANTIOSPECIFIC TOTAL-SYNTHESIS;
ENANTIOSELECTIVE TOTAL-SYNTHESIS;
MACROCYCLIZATION-TRANSANNULAR CYCLIZATION;
CERIUM(IV) AMMONIUM-NITRATE;
GENERAL-APPROACH;
ALSTONIA-SCHOLARIS;
STEREOCHEMICAL CONTROL;
RADICAL CYCLIZATIONS;
BREVIANAMIDE E;
IN-VITRO;
D O I:
10.1002/anie.201409827
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A concise total synthesis of rac-alsmaphorazine D has been described for the first time. The efficient synthetic strategy features four key transformations: 1) a catalytic intramolecular oxidative cyclization for the delta-lactamindole backbone; 2) an oxidative cyclic aminal formation for the hexahydropyrrolo[2,3-b]pyrrole framework; 3) a transannular radical cyclization for the construction of the diazabicyclo-[3.3.1]nonane structure; and 4) a one-pot desilylation/double epimerization reaction that affirms the relative stereochemistry.
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页码:879 / 882
页数:4
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