作者:Katsumi Iida、Shinji Tokiwa、Toshihiro Ishii、Masahiro Kajiwara
DOI:10.1002/jlcr.583
日期:2002.6
5-[4,5-13C2]- and 5-[1,5-13C2]Aminolevulinic acid (ALA) have been synthesized by the Gabriel condensation of potassium phthalimide with ethyl bromo[1,2-13C2]acetate (derived from [1,2-13C2]acetic acid) or ethyl bromo[2-13C]-acetate (derived from sodium [2-13C]acetate), followed by conversion to the chloride, coupling reaction with 2-ethoxycarbonylethylzinc iodide derived from ethyl 3-iodopropionate or 2-methoxy[13C]carbonylethylzinc iodide derived from methyl 3-iodo[1-13C]propionate (generated from potassium [13C]cyanide), and hydrolysis. Copyright © 2002 John Wiley & Sons, Ltd.
5-[4,5-13C2]-和5-[1,5-13C2]氨基乙酰丙酸(ALA)是通过邻苯二甲酰亚胺钾与溴[1,2-13C2]乙酸乙酯(衍生自[ 1,2-13C2]乙酸)或溴[2-13C]-乙酸乙酯(衍生自[2-13C]乙酸钠),然后转化为氯化物,与衍生自3-乙氧基乙基碘化锌的偶联反应碘丙酸或2-甲氧基[13C]羰基乙基碘化锌衍生自3-碘[1-13C]丙酸甲酯(由[13C]氰化钾生成),并水解。版权所有 © 2002 约翰威利父子有限公司