succinimidyl 4-nitrobenzyl carbonate 在
zinc diacetate 作用下,
生成 4-nitrobenzyl (((2S,3R)-2-(((1R,2R,3S,4R,6S)-4-amino-6-((tert-butoxycarbonyl)amino)-3-(((2R,3R,4R,5R)-3,5-dihydroxy-5-methyl-4-(methylamino)tetrahydro-2H-pyran-2-yl)oxy)-2-hydroxycyclohexyl)oxy)-3-((tert-butoxycarbonyl)amino)-3,4-dihydro-2H-pyran-6-yl)methyl)carbamate