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 1-[4-[3-(1-acetyl-3,6-dihydro-2H-pyridin-4-yl)pyrazin-2-yl]oxyphenyl]-2-(2-aminoanilino)prop-2-en-1-one ?
user
C26H25N5O3
assistant