2-Butenoic acid, 2-methyl-, (1S)-2-[(1R,4R,4aR,5S,6R,8S,8aR)-8-(acetyloxy)-8a-[(acetyloxy)methyl]octahydro-5,6-dimethyl-4-[(2S)-2-methyl-1-oxobutoxy]spiro[naphthalene-1(2H),2′-oxiran]-5-yl]-1-(2,5-dihydro-5-oxo-3-furanyl)ethyl ester, (2E)-
2-Butenoic acid, 2-methyl-, 2-[8-(acetyloxy)-8a-[(acetyloxy)methyl]octahydro-5,6-dimethyl-4-(2-methyl-1-oxobutoxy)spiro[naphthalene-1(2H),2′-oxiran]-5-yl]-1-(2,5-dihydro-5-oxo-3-furanyl)ethyl ester, [1R-[1α,4β(S*),4aβ,5β[S*(E)],6α,8α,8aα]]-
Spiro[naphthalene-1(2H),2′-oxirane], 2-butenoic acid deriv.
Ajugamarin H 1