You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a tachykinin receptor antagonist and belongs to both the allergic disease treatment and histamine receptor antagonist classes of molecules. Please represent the molecule in SMILES.
user
COc1cc(C(=O)N2CCC(CCN3CCCN(c4nc5ccccc5n4Cc4coc(C)c4)CC3)(c3ccc(Cl)c(Cl)c3)C2)cc(OC)c1OC
assistant