11091-29-5 2-Propenoic acid, 2-methyl-, 5-(acetyloxy)-8-((acetyloxy)methyl)-1a,2,3,4,5,6,7,9,10a,10b-decahydro-1a,5-dimethyl-4,9-dioxooxireno(9,10)cyclodeca(1,2-b)furan-7-yl ester, (1aR-(1aR*,5R*,7S*,10aS*,10bR*))- Glaucolide A