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-[3-[[(3Z)-2-oxo-3-(1H-pyrrol-2-ylmethylidene)-1H-indol-6-yl]amino]phenyl]-3-pyridin-3-ylurea .
user
C25H20N6O2
assistant