N-[(S)-1-((S)-1-Cyclohexylcarbamoyl-2-phenyl-ethylcarbamoyl)-1-hydroxymethyl-2-methyl-propyl]-benzamide 在
氯化亚砜 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以78%的产率得到(S)-4-Isopropyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid ((S)-1-cyclohexylcarbamoyl-2-phenyl-ethyl)-amide