You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(1R,5R,7S,10S,13S)-2,7,9,10,13-pentaacetyloxy-4-(acetyloxymethyl)-8,12,15,15-tetramethyl-5-bicyclo[9.3.1]pentadeca-3,8,11-trienyl] (2R,3S)-3-(dimethylamino)-2-hydroxy-3-phenylpropanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C43H57NO15
assistant