Asymmetric synthesis of quinolizidine alkaloids (-)-lasubine I, (-)-lasubine II and (+)-subcosine II

被引:65
作者
Chalard, P [1 ]
Remuson, R [1 ]
Gelas-Mialhe, Y [1 ]
Gramain, JC [1 ]
机构
[1] Univ Blaise Pascal, Lab Chim Subst Nat, UMR 6504, F-63177 Aubiere, France
关键词
D O I
10.1016/S0957-4166(98)00468-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The enantioselective synthesis of (-)-lasubine I 1 and the first asymmetric synthesis of (-)-lasubine II 2 and (+)-subcosine II 3 is described. The key step is the intramolecular cyclization of N-acyliminium ion 4 which is derived from (S)-aminoester 6. (C) 1998 Elsevier Science Ltd. All rights reserved.
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页码:4361 / 4368
页数:8
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