16-({[5-(aminomethyl)-4-hydroxy-3-methoxytetrahydro-2-furanyl]oxy}{5-[2,4-dioxo-3,4-dihydro-1 (2H)-pyrimidinyl]-3,4-dihydroxytetrahydro-2-furanyl}methyl)-9-(1-hydroxy-2-methylpropyl)-6-(2-iminohexahydro-4-pyrimidinyl)-2-isopropyl-4,7,10-trioxo-3,5,8,11,15-pentaazaheptadecane-1,17-dioic acid 、
异氰酸己酯 以
水 、
N,N-二甲基甲酰胺 为溶剂,
生成 14-[5-((R)-{(2S,3S,4R,5R)-5-[2,4-Dioxo-3,4-dihydro-1 (2H)-pyrimidinyl]-3,4-dihydroxytetrahydro-2-furanyl}{[(3R,4S,5R)-5-({[(hexylamino)carbonyl]amino}methyl)-4-hydroxy-3-methoxytetrahydro-2-furanyl]oxy}methyl)-3-hexyl-2,4-dioxo-1-imidazolidinyl]-9-(1-hydroxy-2-methylpropyl)-6-(2-iminohexahydro-4-pyrimidinyl)-2-isopropyl-4,7,10-trioxo-3,5,8,11-tetraazatetradecan-1-oic acid