5,15-Epoxycyclotetradeca[b]furan-2(3H)-one, 6-(acetyloxy)-3a,4,5,6,7,8,11,12,13,14,15,15a-dodecahydro-6,10,14-trimethyl-3-methylene-, [3aS-(3aR*,5R*,6S*,9Z,14S*,15S*,15aS*)]- 55822-20-3 B710323F047 CUEUNICIN ACETATE NSC310821