6533b857fe1ef96bd12b3c82

RESEARCH PRODUCT

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

Sonia FloresCarlos Del PozoSantos FusteroMarta GuerolaMaría Sánchez-rosellóJavier Ruiz Moscardó

subject

MyrtineLupinineQuinolizidineStereochemistryOrganocatalysisOrganic ChemistryEnantioselective synthesisEpiquinamideBiochemistryEpiquinamideCatalysischemistry.chemical_compoundLupininechemistryOrganocatalysisIntramolecular forceDrug DiscoveryOrganic chemistryQuinolizidine alkaloidsIntramolecular aza-Michael reaction

description

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.

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