You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-phenyl-1-[(3S,5S,8S)-5,9,9-trimethyl-10-oxa-19,26-diazahexacyclo[16.8.0.02,11.03,8.012,17.020,25]hexacosa-1(26),2(11),12,14,16,18,20(25),21,23-nonaen-22-yl]butan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H36N2O2
assistant