You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 11,17-ditert-butyl-2,5,23-trimethyl-14-(4-nitrophenyl)pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9(27),10,12,15,17,19(26),21(25),22-dodecaene-25,26,27,28-tetrol .
user
C45H49NO6
assistant