You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a tachykinin receptor antagonist. Use the above information to create a molecule.
user
Cc1cc(F)ccc1C1CC(C(=O)NCC(C)c2cc(C(F)(F)F)cc(C(F)(F)F)c2)CCN1C1CCSCC1
assistant