AIDS-128677 AIDS128677 ENHYDRIN A Methyl 6-(acetyloxy)-7-(((2,3-dimethyl-2-oxiranyl)carbonyl)oxy)-1a-methyl-8-methylene-9-oxo-1a,2,3,6,7,7a,8,9,10a,10b-decahydrooxireno[2',3':9,10]cyclodeca[1,2-b]furan-5-carboxylate NSC294601