上游原料
1-Methoxy-1-methylethyl methyl ether; 2,2-Dimethoxypropanebenzyl (1R,2S,3S,4R)-1-benzyl-4-[[(benzyloxy)carbonyl]amino]-2,3-dihydroxy-5-phenylpentylcarbamate(3aS,4R,8R,8aS)-4,8-dibenzyl-2,2-dimethylhexahydro-6H-[1,3]dioxolo[4,5-e][1,3]diazepin-6-onebenzyl (1R,2S,3S,4R)-1-benzyl-4-[[(benzyloxy)carbonyl]amino]-5-phenyl-2,3-bis[(triethylsilyl)oxy]pentylcarbamate(1R,2S,3S,4R)-4-amino-1-benzyl-5-phenyl-2,3-bis[(triethylsilyl)oxy]pentylamine(4R,5S,6S,7R)-4,7-dibenzyl-5,6-dihydroxy-1,3-diazepan-2-one(3aS,4R,8R,8aS)-4,8-dibenzyl-2,2-dimethyl-4,5,8,8a-tetrahydro-3aH-[1,3]dioxolo[4,5-e][1,3]diazepin-6-yl methyl ether5-(bromomethyl)-2-fluorobenzonitrilebenzyl (1R)-1-benzyl-2-hydroxyethylcarbamatebenzyl (1R)-1-benzyl-2-oxoethylcarbamate(3aS,4R,8R,8aS)-4,8-dibenzyl-5-butyl-2,2-dimethyl-4,5,8,8a-tetrahydro-3aH-[1,3]dioxolo[4,5-e][1,3]diazepin-6-yl methyl ether5-[[(3aS,4R,8R,8aS)-4,8-dibenzyl-7-butyl-2,2-dimethyl-6-oxohexahydro-5H-[1,3]dioxolo[4,5-e][1,3]diazepin-5-yl]methyl]-2-fluorobenzonitrile