Diastereoselective intramolecular α-amidoalkylation reactions of L-DOPA derivatives.: Asymmetric synthesis of pyrrolo[2,1-a]isoquinolines

被引:48
作者
García, E [1 ]
Arrasate, S [1 ]
Lete, E [1 ]
Sotomayor, N [1 ]
机构
[1] Univ Basque Country, Fac Ciencia & Tecnol, Dept Quim Organ 2, Bilbao 48080, Spain
关键词
D O I
10.1021/jo051584w
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Stereocontrolled intramolecular alpha-amidoalkylation reactions of L-DOPA-derived succinimides have been studied. Addition of MeLi to nonracemic succinimides 9a-d yields oxoamides, which are cyclized upon treatment with Lewis or protic acids to afford (5S, 10bS)-trans 11 or (5S,10bR)-cis 12 pyrroloisoquinolines with variable diastereoselectivities, but with high enantiomerical purities (ee 99%).
引用
收藏
页码:10368 / 10374
页数:7
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共 42 条
[41]   New developments in the chemistry of N-acyliminium ions and related intermediates [J].
Speckamp, WN ;
Moolenaar, MJ .
TETRAHEDRON, 2000, 56 (24) :3817-3856
[42]   INTRAMOLECULAR REACTIONS OF N-ACYLIMINIUM INTERMEDIATES [J].
SPECKAMP, WN ;
HIEMSTRA, H .
TETRAHEDRON, 1985, 41 (20) :4367-4416