Syntheses from chiral heterocyclic β-amino esters. A new versatile access to pyrrolizidine and quinolizidine alkaloids
摘要:
Chiral heterocyclic P-amino esters can be easily transformed into bicyclic alkaloids after a diastereoselective alkylation followed by specific chemical transformations. (C) 2001 Elsevier Science Ltd. All rights reserved.
Diastereospecific alkylation of heterocyclic β-amino esters
摘要:
Heterocyclic beta-amino esters can be diastereoselectively alkylated with alkyl halides to lead to direct precursors of bicyclic alkaloids. (C) 1999 Elsevier Science Ltd. All rights reserved.