You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-[4-(5-butanoylpyridin-2-yl)piperidin-1-yl]sulfonyl-N-hydroxyoxane-4-carboxamide;hydrochloride into its molecular formula.
user
C20H30ClN3O6S
assistant