上游原料
1,4-Dibromobutane; 1,4-Butylene bromide1,4-Bis(bromomagnesio)butane(3aS,7R,7aR)-7-methoxy-2,2-dimethyltetrahydro-6H-[1,3]dioxolo[4,5-c]pyran-6-one1-[(R)-[(4R,5S)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl](methoxy)methyl]cyclopentanol (8R,9S,10R)-10-methoxy-6-oxaspiro[4.5]decane-7,8,9-triol4-(benzhydryloxy)-7-hydroxy-8-methyl-2H-chromen-2-one4-(benzhydryloxy)-7-[[(7R,8R,9S,10R)-8,9-dihydroxy-10-methoxy-6-oxaspiro[4.5]dec-7-yl]oxy]-8-methyl-2H-chromen-2-one4-(benzhydryloxy)-7-([(7R,8R,9S,10R)-8-hydroxy-10-methoxy-9-[(triethylsilyl)oxy]-6-oxaspiro[4.5]dec-7-yl]oxy)-8-methyl-2H-chromen-2-one4-(benzhydryloxy)-7-([(7R,8R,9R,10R)-10-methoxy-8-(tetrahydro-2H-pyran-2-yloxy)-9-[(triethylsilyl)oxy]-6-oxaspiro[4.5]dec-7-yl]oxy)-8-methyl-2H-chromen-2-one4-hydroxy-7-([(7R,8R,9R,10R)-10-methoxy-8-(tetrahydro-2H-pyran-2-yloxy)-9-[(triethylsilyl)oxy]-6-oxaspiro[4.5]dec-7-yl]oxy)-8-methyl-2H-chromen-2-one4-Nitrophenyl chloroformate; 1-[(Chlorocarbonyl)oxy]-4-nitrobenzene4-hydroxy-7-([(7R,8R,9R,10R)-10-methoxy-8-(tetrahydro-2H-pyran-2-yloxy)-9-[(triethylsilyl)oxy]-6-oxaspiro[4.5]dec-7-yl]oxy)-8-methyl-2H-chromen-2-one3-acetyl-4-hydroxy-7-([(7R,8R,9R,10R)-10-methoxy-8-(tetrahydro-2H-pyran-2-yloxy)-9-[(triethylsilyl)oxy]-6-oxaspiro[4.5]dec-7-yl]oxy)-8-methyl-2H-chromen-2-one3-acetyl-4-hydroxy-7-[[(7R,8R,9R,10R)-9-hydroxy-10-methoxy-8-(tetrahydro-2H-pyran-2-yloxy)-6-oxaspiro[4.5]dec-7-yl]oxy]-8-methyl-2H-chromen-2-one3-ethanimidoyl-4-hydroxy-7-[[(7R,8R,9R,10R)-9-hydroxy-10-methoxy-8-(tetrahydro-2H-pyran-2-yloxy)-6-oxaspiro[4.5]dec-7-yl]oxy]-8-methyl-2H-chromen-2-one(7R,8R,9R,10R)-7-[(3-ethanimidoyl-4-hydroxy-8-methyl-2-oxo-2H-chromen-7-yl)oxy]-10-methoxy-8-(tetrahydro-2H-pyran-2-yloxy)-6-oxaspiro[4.5]dec-9-yl 4-nitrophenyl carbonateO-(2-propynyl)hydroxylamine; 3-(aminooxy)-1-propyne(7R,8R,9R,10R)-7-[(3-ethanimidoyl-4-hydroxy-8-methyl-2-oxo-2H-chromen-7-yl)oxy]-10-methoxy-8-(tetrahydro-2H-pyran-2-yloxy)-6-oxaspiro[4.5]dec-9-yl 2-propynyloxycarbamate(8R,9S,10R)-10-methoxy-6-oxaspiro[4.5]decane-7,8,9-triol4-(benzhydryloxy)-7-hydroxy-8-methyl-2H-chromen-2-oneO-(2-propynyl)hydroxylamine; 3-(aminooxy)-1-propyne
