A new approach to the synthesis of podophyllotoxin based on epimerization reactions

被引:33
作者
Medarde, M
Ramos, AC
Caballero, E
Lopez, JL
deClairac, RPL
SanFeliciano, A
机构
[1] Lab. de Quim. Organ. y Farmaceut., Facultad de Farmacia, E-37007 Salamanca, Av. Campo Charro s/n
关键词
D O I
10.1016/0040-4039(96)00355-3
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A formal synthesis of podophyllotoxin has been achieved by means of the well known conjugate addition-alkylation of 5H-furan-2-one, followed by cyclization and controlled epimerizations. This approach represents a useful new route to the 8,7'-trans-stereochemistry of aryltetralin lactones, that in other methodologies requires the opening and reclosure of the lacton ring. Copyright (C) 1996 Elsevier Science Ltd
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页码:2663 / 2666
页数:4
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