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 (Z)-N-ethyl-2-[5-[3-(1-methylpiperidin-4-yl)oxyquinoxalin-6-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-yl]but-2-en-1-imine .
user
C26H29N7O
assistant