作者:Makoto Oba、Teruaki Ishihara、Hiromi Satake、Kozaburo Nishiyama
DOI:10.1002/jlcr.592
日期:2002.6
Synthesis of L-[2,3,4,5-D4]ornithine in which all of the diastereotopic hydrogens were stereoselectively labeled with deuterium was investigated. The chirally deuterated 3-aminopropanal derivative, a key intermediate in this synthesis, was prepared by a catalytic deuteration of an unsaturated γ-lactone derived for L-glutamic acid followed by several functional group interconversions. Condensation of the obtained deuterium-labeled 3-aminopropanal derivative with a chiral glycine template afforded unsaturated ornithine. The dehydroornithine was then subjected to a catalytic deuteration followed by deprotection to give the L-[2,3,4,5-D4]ornithine. Copyright © 2002 John Wiley & Sons, Ltd.
我们研究了 L-[2,3,4,5-D4]鸟氨酸的合成,其中所有非对映对位的氢都用氘进行了立体选择性标记。啁氚标记的 3-aminopropanal 衍生物是这一合成中的关键中间体,它是通过催化 L-谷氨酸衍生的不饱和 γ-内酯的氚化反应,然后经过几个官能团的相互转化而制备的。将得到的氘标记 3-氨基丙醛衍生物与手性甘氨酸模板缩合,得到不饱和鸟氨酸。然后对脱氢鸟氨酸进行催化脱氘和脱保护反应,得到 L-[2,3,4,5-D4]鸟氨酸。Copyright © 2002 John Wiley & Sons, Ltd. All Rights Reserved.