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
CC(C)(C)OC(=O)N1CCN2c3cccc(c3)C(n3cnc(-c4cc(Cl)ccc4N4C=C(Cl)NN4)cc3=O)CCCCCNC(=O)C2C1
assistant