上游原料
ETHYNYLMAGNESIUM BROMIDE; bromo(ethynyl)magnesiumethyl (E)-3-(3-furyl)-2-propenoate3-(3-furyl)-4,4-dimethylpentanal(3R,5S)-5-(3-furyl)-6,6-dimethyl-1-heptyn-3-ol(3S,5S)-5-(3-furyl)-6,6-dimethyl-1-heptyn-3-olethyl (4S,6S)-6-(3-furyl)-7,7-dimethyl-4-[(triethylsilyl)oxy]-2-octynoateethyl 2-[(1S,3S)-3-(3-furyl)-4,4-dimethyl-1-[(triethylsilyl)oxy]pentyl]-5-oxo-1-cyclopentene-1-carboxylateethyl (1S,3S,6aR)-3-(tert-butyl)-7-oxo-1-[(triethylsilyl)oxy]-2,3,8,9-tetrahydro-1H,6aH-dicyclopenta[2,3:3,4]cyclobuta[1,2-b]furan-6b(7H)-carboxylateethyl (1S,3S,6aR)-3-(tert-butyl)-1-[(methylsulfonyl)oxy]-7-oxo-2,3,8,9-tetrahydro-1H,6aH-dicyclopenta[2,3:3,4]cyclobuta[1,2-b]furan-6b(7H)-carboxylate
