You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): It belongs to the tachykinin antagonist class of molecules.
user
Cl.Cl.O=C(c1cc(Cl)cc(Cl)c1)N1CCN(CC#CCC2CNCCO2)CC1Cc1c[nH]c2ccccc12
assistant