Thermodynamic epimeric equilibration and crystallisation-induced dynamic resolution of lobelanine, norlobelanine and related analogues
作者:Z. Amara、G. Bernadat、P.-E. Venot、P. Retailleau、C. Troufflard、E. Drège、F. Le Bideau、D. Joseph
DOI:10.1039/c4ob01787k
日期:——
β-aminoketone subunit, lobelanine is prone to self-catalyze mutarotation in solution. Through the synthesis of original lobelanine analogues, we studied the influence of (i) the size of the central heterocycle, (ii) the bulkiness of the nitrogen protecting group, and (iii) the phenacyl arm substituent on the thermodynamic equilibrium and its displacement by crystallisation-induced dynamic resolution
Enantioselective Synthesis of Lobeline via Nonenzymatic Desymmetrization
作者:Vladimir B. Birman、Hui Jiang、Ximin Li
DOI:10.1021/ol071064i
日期:2007.8.1
Lobeline has been prepared in enantiopure form via desymmetrization of lobelanidine with use of BTM, a nonenzymatic enantioselective acyl transfer catalyst.