You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a fgfr4 inhibitor.
user
C=CC(=O)Nc1ccc(Cn2c(=O)c(-c3c(Cl)c(OC)cc(OC)c3Cl)cc3cnc(Nc4c(C)cccc4NC(=O)C=CCN(C)C)nc32)cc1
assistant