You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 6-(7-phenyl-7,18-diazapentacyclo[13.2.1.05,17.06,10.011,16]octadeca-1,3,5,8,10,12,14,16-octaen-18-yl)benzene-1,2,3,4,5-pentol .
user
C28H18N2O5
assistant