You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(2R,3S,5R)-5-(6-benzamidopurin-9-yl)-3-hydroxyoxolan-2-yl]methoxy-hydroxy-(naphthalen-1-ylmethoxy)-sulfidophosphanium .
user
C28H26N5O6PS
assistant