One-Pot Organocatalytic Enantioselective Domino Double-Michael Reaction and Pictet-Spengler-Lactamization Reaction. A Facile Entry to the "Inside Yohimbane" System with Five Contiguous Stereogenic Centers

被引:52
作者
Hong, Bor-Cherng [1 ]
Liao, Wei-Kai [1 ]
Dange, Nitin S. [1 ]
Liao, Ju-Hsiou [1 ]
机构
[1] Natl Chung Cheng Univ, Dept Chem & Biochem, Chiayi 621, Taiwan
关键词
4; STEREOCENTERS; CIS; SCISSION; CASCADE;
D O I
10.1021/ol3032329
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An expedited method was developed for the enantioseiective synthesis of dodecahydrobenz[a]indolo[3,2-h]quinolizine containing five contiguous stereogenic centers with high enantioselectivities (>99% ee). The methodology comprises a domino organocatalytic double Michael reaction and Pictet-Spengler-lactamization reaction. The structures and absolute configurations of the appropriate products were confirmed by X-ray analysis.
引用
收藏
页码:468 / 471
页数:4
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