Organocatalytic enantioselective synthesis of quinolizidine alkaloids (+)-myrtine, (-)-lupinine, and (+)-epiepiquinamide

被引:33
|
作者
Fustero, Santos [1 ,2 ]
Moscardo, Javier [1 ]
Sanchez-Rosello, Maria [2 ]
Flores, Sonia [1 ]
Guerola, Marta [1 ]
del Pozo, Carlos [1 ]
机构
[1] Univ Valencia, Dept Quim Organ, E-46100 Burjassot, Spain
[2] Ctr Invest Principe Felipe, Lab Mol Organ, E-46012 Valencia, Spain
关键词
Organocatalysis; Quinolizidine alkaloids; Intramolecular aza-Michael reaction; Myrtine; Lupinine; Epiquinamide; AZA-MICHAEL REACTION; ASYMMETRIC-SYNTHESIS; CONCISE SYNTHESIS; INDOLIZIDINE; EPIQUINAMIDE; LUPININE; ACCESS; POISON;
D O I
10.1016/j.tet.2011.07.017
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The organocatalytic synthesis of quinolizidine alkaloids (+)-myrtine, (-)-lupinine, and (+)-epiepiquinamide is described. It involved, as the key step, an enantioselective intramolecular aza-Michael reaction (IMAMR) catalyzed by Jorgensen catalyst I, affording the common precursor with high enantioselectivity. This compound was subsequently transformed into the three alkaloids in a highly diastereoselective manner. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:7412 / 7417
页数:6
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