1-Deoxy-5-hydroxysphingolipids as New Anticancer Principles: An Efficient Procedure for Stereoselective Syntheses of 2-Amino-3,5-diols
作者:John M. Wiseman、Frank E. McDonald、Dennis C. Liotta
DOI:10.1021/ol050829o
日期:2005.7.1
[reaction: see text]. Enantioselective preparation of the linear homoallylic alcohol I allows efficient formation of the 2-amino-3,5-diol moiety present in several biologically active compounds, including 1-deoxy-5-hydroxysphingosine analogue IV, which has exhibited excellent biological activity against colon cancer. The conversion of I into IV involves a sequence of enantioselective epoxidation of
Stereo- and Regioselective Synthesis of 2-Amino-3,5-diols via Stereospecific Crotyl Transfer and Regioselective Aminohydroxylation
作者:Frank McDonald、Claney Pereira
DOI:10.1055/s-0032-1316805
日期:——
isomer enigmol, a synthetic anticancer compound inspired by the structure of fumonisin B1. The syntheticroute features 1) stereospecific crotyl transfer to tetradecanal via pericyclic oxonia-Cope rearrangement; 2) stereoselective epoxidation of the alkene; 3) regioselective epoxide opening with azide; and 4) reduction of azide to amine. This manuscript also corrects a structure assignment error in a previously
Synthesis and Biological Evaluation of 1-Deoxy-5-hydroxysphingosine Derivatives
作者:Judit Esteve、Adriana Lorente、Pedro Romea、Fèlix Urpí、Carla Ríos-Luci、José M. Padrón
DOI:10.1002/ejoc.201001268
日期:2011.2
A sequential transformation based on the titanium-mediated aldol addition of (S)-1-bromo-3-(tert-butyldimethylsilyloxy)2-butanone, a chiral lactate-derived ketone, to tetradecanal followed by reduction of the ensuing aldolate afforded the corresponding syn-1,3-diol as a single diastereomer. Debro