反应详情

S-Acetyl-2-mercaptoacetic acid (75 mmoles) and N-hydroxysuccinimide (75 mmoles), were dissolved in 150 ml dioxane and reacted with cooling in ice with N,N'-dicyclohexylcarbodiimide (75 mmoles) and the mixture was kept at 4° C. for 16 h. The N,N'-dicyclohexylurea formed was removed by filtration and the solvent evaporated in vacuo. The residue was twice recrystallized from 2-propanol.

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