You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-[ethyl(2-methylprop-2-enyl)amino]-2-oxoethyl] 1-(2-methoxycarbonylphenyl)sulfonylpiperidine-4-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C22H30N2O7S
assistant