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
CNc1ccc2c(c1)NCCCCCC(NC(=O)C(N)=C(N)N(N)c1cccc(Cl)c1)c1ncc-2[nH]1
assistant