C44H60N4O9Si
C48H64N4O9Si
C42H55N3O9Si
C43H55N3O11Si
((4aS,11aS,12aS,13S)-3-(benzyloxy)-4a-((tert-butyldimethylsilyl)oxy)-10,13-bis(dimethylamino)-5-hydroxy-12-methylene-4,6-dioxo-4,4a,6,11,11a,12,12a,13-octahydrotetraceno[2,3-d]isoxazol-7-yl tert-butyl carbonate)