You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a factor xia inhibitor and is thrombosis treatment.
user
Cc1cnc(CNC(=O)CC(NC(=O)C=Cc2cc(Cl)ccc2-n2cnnn2)c2nc(-c3ccc(C#N)cc3)c(Cl)[nH]2)cn1
assistant