You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4S,7S)-9-(dimethylcarbamoyl)-16-heptyl-4-(2-methylpropyl)-2,5-dioxo-1-oxa-3,6-diazacyclohexadecane-7-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H51N3O6
assistant