(E)-N-[(S)-2-((R)-Ethylsulfanylmethanesulfinyl)-1-methoxymethoxymethyl-ethyl]-3-(6-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl)-acrylamide 在
Dowex(R) 50W H
(1+) form 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以85%的产率得到(E)-N-[(S)-2-((R)-Ethylsulfanylmethanesulfinyl)-1-hydroxymethyl-ethyl]-3-(6-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl)-acrylamide