You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(5S,9S,13R)-18-(methoxymethoxy)-7,7,13,14-tetramethyl-20-[3-[(2-methylpropan-2-yl)oxycarbonyl-pyridin-2-ylamino]propoxy]-16-oxo-6,8,15-trioxatricyclo[15.4.0.05,9]henicosa-1(17),2,11,18,20-pentaen-10-yl] benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C44H54N2O11
assistant