Synthesis of (−)-lobeline via enzymatic desymmetrization of lobelanidine
摘要:
The bioactive alkaloid (-)-lobeline was synthesized via the stereoselective acylation (desymmetrization) of meso-lobelanidine by vinyl acetate in the presence of Candida antarctica lipase B. (C) 2009 Elsevier Ltd. All rights reserved.
Synthesis of (−)-lobeline via enzymatic desymmetrization of lobelanidine
摘要:
The bioactive alkaloid (-)-lobeline was synthesized via the stereoselective acylation (desymmetrization) of meso-lobelanidine by vinyl acetate in the presence of Candida antarctica lipase B. (C) 2009 Elsevier Ltd. All rights reserved.
Elucidating absolute configuration of unsaturated alcohols via enantioselective acylation reactions
作者:Christina M. LeGay、Colton G. Boudreau、Darren J. Derksen
DOI:10.1039/c3ob40709h
日期:——
Enantioselective nucleophilic acylation catalysis provides a simple method of determining absolute configuration for unsaturated alcohols. Extension of this technique to natural products and synthetic compounds, as well as current limitations of this approach, are also described.
Indirect Trapping of the Retroconjugate Addition Reaction Intermediate Involved in the Epimerization of Lobeline: Application to the Synthesis of (−)-Sedamine
作者:Guangrong Zheng、Linda P. Dwoskin、Peter A. Crooks
DOI:10.1021/jo048848j
日期:2004.11.1
Alkyl chloroformates induced indirect trapping of the retroconjugate addition reaction intermediate involved in the epimerization of lobeline is described. This strategy was applied to the conversion of (−)-lobeline to (−)-sedamine in high overall yield.