2-Butenoic acid, 4-hydroxy-2-(hydroxymethyl)-, 1a,2,3,6,7,7a,8,9,10a,10b-decahydro-1a,5-dimethyl-8-methylene-9-oxooxireno(9,10)cyclodeca(1,2-b)furan-7-yl ester, (1aR-(1aR*,4E,7S*(E),7aR*,10aS*,10bR*))- 30994-28-6 Stizolicin