You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(1R)-2-[tert-butyl(dimethyl)silyl]oxy-1-[(2R,3R,4S)-3,4-dihydroxy-5-oxooxolan-2-yl]ethyl]-4-methylbenzenesulfonamide into molecular formula.
user
C19H31NO7SSi
assistant