2,6-Epoxy-2H-naphthaceno(1,2-b)oxocin-9,16-dione, 3,4,5,6,11,12,13,14-octahydro-4-(dimethylamino)-11-ethoyx-3,5,8,10,13-pentahydroxy-6,13-dimethyl-, (2-alpha,3-beta,4-alpha,5-beta,6-alpha,11-alpha,13-alpha)-(+)- 71628-97-2