Application of an organozinc reagent derived from (S)-pyroglutamic acid:: a formal synthesis of epibatidine

被引:28
作者
Karstens, WFJ [1 ]
Moolenaar, MJ [1 ]
Rutjes, FPJT [1 ]
Grabowska, U [1 ]
Speckamp, WN [1 ]
Hiemstra, H [1 ]
机构
[1] Univ Amsterdam, Inst Mol Chem, Organ Chem Lab, NL-1018 WS Amsterdam, Netherlands
关键词
epibatidine; organozinc reagent; N-acyliminium ions; azabicylo[2.2.1]heptanes;
D O I
10.1016/S0040-4039(99)01808-0
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A formal total synthesis of natural (-)-epibatidine has been developed. Key steps in the synthesis are a copper(I)-mediated coupling of an (S)-pyroglutamic acid-derived organozine reagent with 1-iodo-3-trimethylsilyl-1-propyne and an N-acyl- or N-sulfonyliminium ion cyclization, Following this route, various N-protected hydroxylactams were converted into 7-azabicylo[2,2,1]heptane derivatives, (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码:8629 / 8632
页数:4
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