189100-15-0

2-Butenoic acid,2-methyl-,(3S,3aS,4S,4aS,5R,- 6S,8aR,9aS)-decahydro-3,4a,5-trimethyl-6- [[(2Z)-3-(methylthio)-1-oxo-2-propenyl]oxy]- 1-oxo-3a,9a-epoxynaphtho[2,3-b]furan-4-yl ester,(2Z)-