You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? It belongs to the tachykinin antagonist class of molecules.
user
COC1CCN(C(=O)OCc2ccccc2)C(C2CCOC(OC(C)c3cc(C(F)(F)F)cc(C(F)(F)F)c3)C2c2ccc(F)cc2)C1
assistant