作者:Marian Mikołajczyk、Jerzy Łuczak、Piotr Kiełbasinski
DOI:10.1021/jo020330x
日期:2002.11.1
starting from diethyl 3-chloro-2-oxopropanephosphonate 4 in three steps involving reduction of 4 to the corresponding 2-hydroxyphosphonate 5, conversion of the latter to phosphonic acid 6, and final reaction with trimethylamine, affording the trimethylammonium salt of 3. Baker's yeast reduction of 4 and enzymatic kinetic resolution of (+/-)-5 afforded the enantiomerically pure precursors of phosphocarnitine
从3-氯-2-氧代丙烷膦酸二乙酯二乙酯开始,分三步合成外消旋磷酸肉碱3,包括将4还原为相应的2-羟基膦酸酯5,将后者转化为膦酸6,最后与三甲胺反应,得到三甲基铵。 3的盐。贝克酵母还原4和酶动力学拆分(+/-)-5,得到对映体纯的磷酸肉碱,(R)-(+)-5和(S)-(-)-5,分别转化为(S)-(-)-和(R)-(+)-磷酸肉碱3。