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 (4R,4aR,5aS,12aS)-7-[(1-benzylpiperidin-4-yl)amino]-4-(dimethylamino)-3,10,11,12a-tetrahydroxy-1,12-dioxo-3,4,4a,5,5a,6-hexahydro-2H-tetracene-2-carboxamide .
user
C33H40N4O7
assistant