You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
25-(6-phenylpyridin-2-yl)-2,9,25-triazaheptacyclo[15.11.0.02,10.03,8.011,16.018,26.019,24]octacosa-1(17),3,5,7,9,11,13,15,18(26),19,21,23,27-tridecaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H22N4
assistant