You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as (4R,4aR,5aS,12aR)-4-(dimethylamino)-7-ethyl-10,12a-dihydroxy-9-[(2-methylpropylamino)methyl]-1,3,11,12-tetraoxo-4,4a,5,5a,6,11a-hexahydrotetracene-2-carboxamide using the IUPAC nomenclature.
user
C28H37N3O7
assistant