You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a factor xia inhibitor.
user
O=C(Nc1ccc2[nH]c(=O)[nH]c2c1)C1CC(N2CCOCC2)CN1C(=O)C=Cc1cc(Cl)ccc1-n1cnnn1
assistant