Bioreduction of β-carboline imines to amines employing Saccharomyces bayanus
摘要:
beta-Carboline imine reductions mediated by Saccharomyces bayanus have been described achieving moderate to good enantiomeric excesses of the amine products. The enantiomeric excesses of the bioreduction showed a dependence on the imine substituents. Compounds presenting C-1-C-11 aliphatic substituent groups afforded amines with an (S)-configuration, whereas C-15 and higher aliphatic, and aromatic substituted B-carboline imines achieved inversion of the configuration in the final (R)-2 amine products. Based on this data, a model for the Saccharomyces reduction is proposed. (C) 2010 Elsevier Ltd. All rights reserved.
Bioreduction of β-carboline imines to amines employing Saccharomyces bayanus
作者:Marlene Espinoza-Moraga、Tania Petta、Marco Vasquez-Vasquez、V. Felipe Laurie、Luis A.B. Moraes、Leonardo Silva Santos
DOI:10.1016/j.tetasy.2010.06.036
日期:2010.8
beta-Carboline imine reductions mediated by Saccharomyces bayanus have been described achieving moderate to good enantiomeric excesses of the amine products. The enantiomeric excesses of the bioreduction showed a dependence on the imine substituents. Compounds presenting C-1-C-11 aliphatic substituent groups afforded amines with an (S)-configuration, whereas C-15 and higher aliphatic, and aromatic substituted B-carboline imines achieved inversion of the configuration in the final (R)-2 amine products. Based on this data, a model for the Saccharomyces reduction is proposed. (C) 2010 Elsevier Ltd. All rights reserved.