You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a tachykinin receptor antagonist.
user
CC(=O)NCC(=O)N1CCC(NCc2cc(-c3ccc(C#N)cc3C)ccc2OC(F)(F)F)C(c2ccccc2)C1
assistant