You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[(6aS,10R,10aR,11aS)-3-tert-butyl-8-carbamoyl-10-(dimethylamino)-4,5,6a,9-tetrahydroxy-6,7-dioxo-9,10,10a,11,11a,12-hexahydro-8H-tetracen-1-yl]-2-aminoacetic acid .
user
C27H35N3O9
assistant