You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a factor xia inhibitor.
user
COC(=O)Cn1nc(C(Cc2ccccc2)NC(=O)C=Cc2cc(Cl)ccc2-n2cnnn2)cc(-c2ccc(NC(=O)OC)cc2)c1=O
assistant