You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-ethyl-3-[6-(6-propan-2-ylpyridin-3-yl)-4-pyrimidin-2-yl-1H-benzimidazol-2-yl]urea .
user
C22H23N7O
assistant