You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 4-[[1-amino-1-[2-(1-phenylethylamino)pyrimidin-4-yl]benzimidazol-1-ium-5-yl]methyl]-4-phenylpiperidine-1-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H42N7O2+
assistant