Complementary chemoenzymatic routes to both enantiomers of febrifugine
作者:Marloes A. Wijdeven、Rutger J. F. van den Berg、Roel Wijtmans、Peter N. M. Botman、Richard H. Blaauw、Hans E. Schoemaker、Floris L. van Delft、Floris P. J. T. Rutjes
DOI:10.1039/b901670h
日期:——
Two complementary strategies for the synthesis of febrifugine are detailed based on previously developed chemoenzymatic approaches to the 3-hydroxypiperidine skeleton. The introduction of the quinazolone-containing side chain in both strategies was based on an N-acyliminium ion-mediated coupling reaction.
Asymmetric Synthesis of (+)-Isofebrifugine and (−)-Sedacryptine from a Common Chiral Nonracemic Building Block
作者:Andrew G. H. Wee、Gao-Jun Fan
DOI:10.1021/ol8013864
日期:2008.9.1
The stereoselective syntheses of 2-substituted and 2,6-disubstituted 3-hydroxypiperidine alkaloids, (+)-isofebrifugine and (-)-sedacryptine, from a common, functionalized nonracemic bicyclic building block are achieved, demonstrating the flexibilty of the approach.