You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,3R,4R,5R)-5-(2-acetylimino-6-chloro-7H-purin-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] methanesulfonate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H16ClN5O7S
assistant