上游原料
4-[(5R,5aR,8aR,9S)-9-hydroxy-6-oxo-5,5a,6,8,8a,9-hexahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxyphenyl benzyl carbonate(2R,4aR,6R,7R,8S,8aR)-7-(acetoxy)-6-hydroxy-2-methylhexahydropyrano[3,2-d][1,3]dioxin-8-yl acetate(2R,4aR,6R,7R,8S,8aR)-6-[[(5S,5aR,8aR,9R)-9-(4-[[(benzyloxy)carbonyl]oxy]-3,5-dimethoxyphenyl)-8-oxo-5,5a,6,8,8a,9-hexahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]oxy]-7-(acetoxy)-2-methylhexahydropyrano[3,2-d][1,3]dioxin-8-yl acetate(5R,5aR,8aR,9S)-9-Hydroxy-5-(4-hydroxy-3,5-dimethoxyphenyl)-5,8,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(5aH)-one(2R,4aR,6S,7R,8R,8aS)-7,8-Bis(benzyloxy)-2-methylhexahydropyrano[3,2-d][1,3]dioxin-6-ol(5R,5aR,8aR,9S)-9-[[(2R,4aR,6R,7R,8R,8aS)-7,8-bis(benzyloxy)-2-methylhexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-5-(4-hydroxy-3,5-dimethoxyphenyl)-5,8,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(5aH)-one(5R,5aR,8aR,9S)-9-[[(2R,4aR,6S,7R,8R,8aS)-7,8-bis(benzyloxy)-2-methylhexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-5-(4-hydroxy-3,5-dimethoxyphenyl)-5,8,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(5aH)-one
