You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-(aminomethylidene)-9-methyl-N'-propan-2-yl-5,6-dihydro-1H-imidazo[1,2-d][1,4]benzoxazepin-4-ium-2-carboximidamide into its molecular formula.
user
C17H22N5O+
assistant