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 xa inhibitor.
user
COC(=O)N=C(N)c1cccc(OC(C(=O)Nc2ccc(N3CCCCC3=O)cc2)c2ccccc2)c1
assistant