You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[C-ethynyl-N-[(3-methylborinin-2-yl)methyl]carbonimidoyl]benzonitrile;1-[6-[(1E,12Z)-11-methylidene-20-phenyl-10,20-diazatetracyclo[11.7.0.04,9.014,19]icosa-1,4,6,8,12,14,16,18-octaen-10-yl]pyridin-2-yl]ethenamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C49H39BN6
assistant