You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? The molecule is both a factor xia inhibitor and a anti coagulant.
user
O=C(O)Nc1ccc(-c2nc(Cn3ccc(-c4cc(Cl)ccc4-n4cnnn4)cc3=O)[nH]c2Cl)cc1
assistant