22551-45-7 5,15-Epoxycyclotetradeca[b]furan-2(3H)-one, 3a,4,5,6,7,8,11,12,13,14,15,15a-dodecahydro-6-hydroxy-6,10,14-trimethyl-3-methylene-,(3aS,5R,6R,9E,14R,15R,15aR)- AIDS-031192 AIDS031192 Eunicin ND-2193 NSC282752