You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a factor xia inhibitor and belongs to the thrombosis treatment class of molecules.
user
C=C1CCCCC(c2ccc(-c3cc(C)ccc3N=CNN)cn2)c2ncc([nH]2)-c2cc(F)ccc2N1
assistant