You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(Z)-3-[2-(2,2-difluorocyclopropyl)-6-(3,5-dimethyl-1,2-oxazol-4-yl)-1H-benzimidazol-4-yl]-4-iminopent-2-en-2-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H21F2N5O
assistant