You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[9-[(2R,4S,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-hydroxyoxolan-2-yl]-2-(propanoylamino)purin-6-yl] N,N-diphenylcarbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C47H44N6O8
assistant