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 xa inhibitor and belongs to the anti coagulant class of molecules, with the characteristic of being anti coagulant agent.
user
Cn1ncc2nc(-c3ccc(N4CCNC4=O)cc3)n(-c3ccc(Cl)cn3)c(=O)c21
assistant