(E)-1-Hydroxy-2-methylbut-2-enyl 4-diphosphate (6) has been recently detected as an intermediate of isoprenoid biosynthesis via 1-deoxy-D-xylulose 5-phosphate. The compound was synthesized in two steps from 2-methyl-2-vinyloxirane with an overall yield of 72%. We also report a method affording [1-H-3]-6 and [1-H-2(1)]-6 from the same starting material in four steps where the hydrogen isotope is introduced in the last reaction step from deuterated or tritiated sodium borohydride. The radiochemical yield of [1-H-3]-6 was 15%. (C) 2002 Elsevier Science Ltd. All rights reserved.
(E)-1-羟基-2-甲基-2-烯基but-2-yl 4-
二磷酸酯(6)作为isoprenoid
生物合成途径的中间体,最近通过1-脱氧-D-木在外面5-
磷酸酯的途径被检测出来。该化合物通过两步合成,底物起点为2-甲基-2-烯基氧
环戊二烯酸酯,总体产率达到72%。本研究还报道了一种四种步骤的方法,使同一底物出发生成[1-H-3]-6和[1-H-2(1)]-6,其中氢同位素的引入均在最后一反应步骤中完成,起始材料用含 deuterated 或 tritiated 的 sodium borohydride 处理。The radiochemical yield of [1-H-3]-6 was 15%。 (C)2002 Elsevier Science Ltd。All rights reserved。