(2R,3R,4R,5S,6R)-(-)-4-(N-methoxycarbonyl-N-methylamino)-3,5,6-tris(methoxymethyloxy)-2-methyl-2-(1,4,5,8-tetramethoxy-2-naphthalenyl)tetrahydropyran

(2R,3S,4R,5R,6R)-(+)-3,5-diacetoxy-9,12-dimethoxy-4-dimethylamino-8-hydroxy-6-methyl-2,6-epoxy-3,4,5,6-tetrahydro-2H-naphthaleno[1,2-b]oxocine

(2R,3S,4R,5R,6R)-(+)-3,5-diacetoxy-4-dimethylamino-8-hydroxy-6-methyl-2,6-epoxy-3,4,5,6-tetrahydro-2H-naphthaleno[1,2-b]oxocine-9,12-dione

(2R,3R,4R,5S,6R)-(+)-2-(5,8-dimethoxy-1,4-dioxo-2-naphthalenyl)-4-dimethylamino-3,5,6-tris(methoxymethyloxy)-2-methyltetrahydropyran