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-(3,4-dihydro-2H-1,5-benzodioxepin-7-ylamino)-2-oxoethyl] 4-(methylamino)-3-nitrobenzoate .
user
C19H19N3O7
assistant