(±)-methyl ((1S,2R,4R,6S)-4-(3-aminopyridin-4-yl)-2-((tert-butoxycarbonyl)amino)-6-methylcyclohexyl)(methyl)carbamate 、
N,N'-硫羰基二咪唑 在
SiO2 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以methyl ((1S,2R,4R,6S)-2-((tert-butoxycarbonyl)amino)-4-(3-isothiocyanatopyridin-4-yl)-6-methylcyclohexyl)(methyl)carbamate is obtained的产率得到methyl ((1S,2R,4R,6S)-2-((tert-butoxycarbonyl)amino)-4-(3-isothiocyanatopyridin-4-yl)-6-methylcyclohexyl)(methyl)carbamate