56377-67-4 NSC249959 Propanoic acid, 2-methyl-, dodecahydro-9-hydroxy-6,10-dimethyl-3-methylene-2-oxo-6,9-epoxycyclodeca[b]furan-4-yl ester, [3aS-(3aR*,4R*,6R*,9R*,10R*,11aS*)]- Propanoic acid, 2-methyl-, dodecahydro-9-hydroxy-6,10-dimethyl-3-methylene-2-oxo-6,9-epoxycyclodeca[b]furan-4-yl ester, [3aS-(3aR*,4S*,6R*,9S*,10R*,11aS*)]- Tirotundin Tirotundine Titrotundine