You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: It belongs to the tachykinin antagonist class of molecules.
user
Cn1c(-c2ccc(Cl)cc2)c(CCCN2CCC(S(=O)Cc3ccc(F)cc3)CC2)c2cc(Cl)ccc21
assistant