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 (2R)-4-[4-(methylsulfonylmethyl)benzoyl]-N-propyl-2,3-dihydro-1,4-benzoxazine-2-carboxamide using the IUPAC nomenclature.
user
C21H24N2O5S
assistant