35852-26-7 Melampodin Melampodin A NSC155619 Oxireno[7,8]cyclodeca[1,2-b]furan-3-carboxylic acid, 5-[[(2,3-dimethyloxiranyl)carbonyl]oxy]-1a,4,5,5a,6,7,8a,10a-octahydro-4-hydroxy-10-methyl-6-methylene-7-oxo-, methyl ester, [1aR-[1aR*,2E,4S*,5S*(2R*,3R*),5aS*,8aR*,9E,10aS*]]-