You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N,3-dihydroxy-3-methyl-1-[4-[4-(methylamino)pent-2-ynoxy]phenyl]sulfonylpiperidine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H27N3O6S
assistant