preferred_name: 5,5A,6A,7,12,13,14,16-OCTAHYDRO-5A-HYDROXY-16-(HYDROXYMETHYL)-9-METHOXY-8-(METHOXYMETHOXY)-4,10,17-TRIMETHYL-5-OXO-7,13-IMINO-6H-1,3-DIOXOLO(7,8)ISOQUINO(3,2-B)(3)BENZAZOCINE-14-CARBONITRILE, (6AS,7R,13S,14R,16R)-