Methyl [8-(3-furyl)-2a,5a,6a,7-tetramethyl-2,5-dioxo-2a,5a,6,6a,8,9,9a,10a,10b,10c-decahydro-2H,5H-cyclopenta[b]furo[2',3',4':4,5]naphtho[2,3-d]furan-6-yl]acetate;2H,5H-Cyclopenta[d]naphtho[2,3-b:1,8-b'c']difuran-6-acetic acid, 8-(3-furanyl)-2a,5a,6,6a,8,9,9a,10a,10b,10c-decahydro-2a,5a,6a,7-tetramethyl-2,5-dioxo-, methyl ester;(4S,4aS,8aS)-4-(tert-Butyl-dimethylsilyl)oxy-7,7-dimethoxy-4a-methyl-3,4,5,6,8,8a-hexahydro-2H-naphthalen-1-one;(4S,4aS,8aS)-4-(dimethyl-tert-butyl-silyl)oxy-7,7-dimethoxy-4a-methyl-decalin-1-one
-20°C,干燥,密封