B. R1 = H, R3 = H, R2=N(CH3)2: (4S,4aS,5aR,12aS)-4-dimethylamino-1,4,4a,5,5a,6,11,12a-okta- hydro-3,10,12,12a-tetrahydroxy-1,11-dioxonaftacen-2-karboxamid(sancyklin),
B. R1 = H, R3 = H, R2=N(CH3)2: (4S,4aS,5aR,12aS)-4-dimethylamino-1,4,4a,5,5a,6,11,12a-okta- hydro-3,10,12,12a-tetrahydroxy-1,11-dioxonaftacen-2-karboxamid(sancyklin),