33143-54-3 NSC322918 Propanoic acid, 2-methyl-, 8-(acetyloxy)-2,3,3a,4,5,6,7,8,9,11a-decahydro-9-hydroxy-6,10-dimethyl-3-methylene-2-oxo-6,9-epoxycyclodeca[b]furan-4-yl ester, [3aR-(3aR*,4R*,6R*,8S*,9S*,10Z,11aR*)]- WOODHOUSIN