You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [(2R,3R,4R,5R)-5-[2-amino-6-(methylamino)-1H-purin-3-ium-9-yl]-3-(2-cyclohexylacetyl)oxy-4-fluoro-4-methyloxolan-2-yl]methoxymethyl 2,2-dimethylpropanoate ?
user
C26H40FN6O6+
assistant