You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule tert-butyl 6-[[(2R,3S,5R)-5-(6-amino-2-fluoropurin-9-yl)-2-ethynyl-3-hydroxyoxolan-2-yl]methoxycarbonyloxy]hexanoate into molecular formula.
user
C23H30FN5O7
assistant