2-(5-benzyl-1,4,5-trimethyl-3,6-dioxopiperazin-2-ylidenemethyl)-benzonitrile 在
10% palladium on carbon
氢气 作用下,
以
甲醇 为溶剂,
反应 7.0h,
生成
(S,S)-2-[5-benzyl-1,4,5-trimethyl-3,6-dioxopiperazin-2-ylmethyl]benzonitrile 、 2-[5-benzyl-1,4,5-trimethyl-3,6-dioxopiperazin-2-ylmethyl]benzonitrile