You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: It belongs to the tachykinin antagonist class of molecules.
user
Cc1ccc(C)c(COC2C3CCN(CC3)C2C(c2ccccc2)c2ccccc2)c1.O=C(O)C(=O)O
assistant