You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a tachykinin receptor antagonist. Please write the SMILES representation of it.
user
CCOC(=O)CN1CCN(C(=O)NC2(c3ccccc3)CCN(CCC3(c4ccc(Cl)c(Cl)c4)CCN(C(=O)c4cc(-c5nn[nH]n5)ccc4OC)C3)CC2)CC1
assistant