(2S,3S)-2-[2-(Hydroxy-methyl-amino)-3,4-dioxo-cyclobut-1-enylamino]-3-methyl-pentanoic acid ((S)-3-methyl-1-methylcarbamoyl-butyl)-amide 在
劳森试剂 作用下,
以
二氯甲烷 为溶剂,
以59%的产率得到(2S,3S)-2-[2-(Hydroxy-methyl-amino)-4-oxo-3-thioxo-cyclobut-1-enylamino]-3-methyl-pentanoic acid ((S)-3-methyl-1-methylcarbamoyl-butyl)-amide