A facile stereodivergent synthesis of threo- and erythro-N,N-dibenzyl sphingosines from (S)-N,N-dibenzyl-O-TBDMS-serinal
摘要:
The (L)-threo-N,N-dibenzyl sphingosine was prepared in two steps from the serinal derivative 1 by diastereoselective alkenylation with pentadec-l-enyl(ethyl)zinc and deblocking. (D)-erythro-N,N-Dibenzyl sphingosine was also prepared in two steps from 1 by a highly diastereoselective alkynylation with pentadecynyl magnesium bromide and subsequent stereoselective LAH reduction. (C) 1998 Elsevier Science Ltd. All rights reserved.
A facile stereodivergent synthesis of threo- and erythro-N,N-dibenzyl sphingosines from (S)-N,N-dibenzyl-O-TBDMS-serinal
摘要:
The (L)-threo-N,N-dibenzyl sphingosine was prepared in two steps from the serinal derivative 1 by diastereoselective alkenylation with pentadec-l-enyl(ethyl)zinc and deblocking. (D)-erythro-N,N-Dibenzyl sphingosine was also prepared in two steps from 1 by a highly diastereoselective alkynylation with pentadecynyl magnesium bromide and subsequent stereoselective LAH reduction. (C) 1998 Elsevier Science Ltd. All rights reserved.
A facile stereodivergent synthesis of threo- and erythro-N,N-dibenzyl sphingosines from (S)-N,N-dibenzyl-O-TBDMS-serinal
作者:José M Andrés、Rafael Pedrosa
DOI:10.1016/s0957-4166(98)00231-6
日期:1998.7
The (L)-threo-N,N-dibenzyl sphingosine was prepared in two steps from the serinal derivative 1 by diastereoselective alkenylation with pentadec-l-enyl(ethyl)zinc and deblocking. (D)-erythro-N,N-Dibenzyl sphingosine was also prepared in two steps from 1 by a highly diastereoselective alkynylation with pentadecynyl magnesium bromide and subsequent stereoselective LAH reduction. (C) 1998 Elsevier Science Ltd. All rights reserved.