Stereocontrol in the addition of nucleophiles to an optically active aldehyde derived from L-serine, leading to a short-step synthesis of (2S,3S,4R)-phytosphingosine
作者:Makoto Shimizu、Ichiro Wakioka、Tamotsu Fujisawa
DOI:10.1016/s0040-4039(97)01340-3
日期:1997.8
The diastereoselective addition of dithianide to a chiral aldehyde derived from L-serine followed by hydrolysis of the dithiane moiety and the addition of dodecylacetylide gave a diastereomerically pure aminotriol derivative which, upon hydrogenation and deprotection, afforded (2S,3S,4R)-phytosphingosine in good overall yield in enantiomerically pure form.
非对映选择性地将二噻吩胺加到衍生自L-丝氨酸的手性醛中,然后将二噻吩基部分水解,再加入十二烷基乙酰胺,得到非对映体纯的氨基三醇衍生物,经氢化和脱保护后得到(2 S,3 S,4 R) -植物鞘氨醇,对映体纯形式,总收率好。