You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 3-[5-[3-[5-[6-(ethylamino)pyridin-3-yl]-3-oxopent-1-en-2-yl]-4-(methylamino)phenyl]pyridin-3-yl]-1,1-dimethylurea ?
user
C27H32N6O2
assistant