You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It belongs to the tachykinin receptor antagonist class of molecules.
user
CC(OC1CC2C(NC3CCOCC3)CC(=O)N2C1)c1cc(C(F)(F)F)cc(C(F)(F)F)c1
assistant