2,6-Epoxy-2H-naphthaceno[1,2-b]oxocin-9,16-dione, 4-(dimethylamino)-11-ethoxy-3,4,5,6,11,12,13,14-octahydro-3,5,8,10,13-pentahydroxy-6,13-dimethyl- 7-O-Ethylnogarol NOGAROL, 7-O-ETHYL NSC282724