You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a factor xia inhibitor.
user
COCCC(=O)N1CCC(c2cccc(C(Cc3ccccc3)c3ccc(-c4cc(Cl)ccc4-n4ncnn4)c[n+]3[O-])c2)CC1
assistant