You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 4-phenyl-6-(4-pyridin-3-ylphenyl)-2-spiro[10,21-dioxapentacyclo[11.8.0.03,11.04,9.015,20]henicosa-1(13),2,4,6,8,11,15,17,19-nonaene-14,2'-tricyclo[9.4.0.03,8]pentadeca-1(15),3(8),4,6,9,11,13-heptaene]-5'-ylpyrimidine using the IUPAC nomenclature.
user
C54H33N3O2
assistant