Isoprenoid biosynthesis via the MEP pathway. Synthesis of (3R,4S)-3,4-dihydroxy-5-oxohexylphosphonic acid, an isosteric analogue of 1-deoxy-d-xylulose 5-phosphate, the substrate of the 1-deoxy-d-xylulose 5-phosphate reducto-isomerase
作者:Odile Meyer、Catherine Grosdemange-Billiard、Denis Tritsch、Michel Rohmer
DOI:10.1039/b312193c
日期:——
(3R,4S)-3,4-Dihydroxy-5-oxohexylphosphonic acid, an isosteric analogue of 1-deoxy-D-xylulose 5-phosphate (DXP), was obtained in enantiomerically pure form from (+)-2,3-O-benzylidene-D-threitol by a seven-step sequence. This phosphonate did not affect the growth of Escherichiacoli. It did not inhibit the 1-deoxy-D-xylulose 5-phosphate reductoisomerase (DXR), but was converted by this enzyme into (3R,4R)-3,4,5-trihydroxy-3-methylpentylphosphonic acid, an isosteric analogue of 2-C-methyl-D-erythritol 4-phosphate. The enzyme was, however, less efficient with the methylene phosphonate analogue than with the natural substrate.
(3R,4S)-3,4-二羟基-5-氧基六烷基磷酸,一种1-脱氧-D-木糖醇5-磷酸(DXP)的同类物质,通过七步合成反应从(+)-2,3-O-苄叉-D-苏糖醇中获得了手性纯净的形式。该磷酸酯对大肠杆菌的生长没有影响。它没有抑制1-脱氧-D-木糖醇5-磷酸还原异构酶(DXR),但被该酶转化为(3R,4R)-3,4,5-三羟基-3-甲基戊基磷酸,这是一种2-C-甲基-D-赤藓糖醇4-磷酸的同类物质。然而,该酶在处理亚甲基磷酸酯同类物质时效率低于对天然底物的处理。