惕各酸甲酯

Methyl-2(Z)-4-brom-2-brommethyl-2-butenoat

dihydroxytiglic acid acetonide

(3aR,4R,6E,9S,10Z,11aS)-4,9-dihydroxy-6,10-dimethyl-3a,4,5,8,9,11a-hexahydrocyclodeca[b]furan-2(3H)-one

(3aS,4R,6E,9S,10Z,11aS)-6,10-dimethyl-3-methylene-4,9-bis((trimethylsilyl)oxy)-3a,4,5,8,9,11a-hexahydrocyclodeca[b]furan-2(3H)-one