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 fxa inhibitor and belongs to the anti coagulant class of molecules.
user
C=Cc1ccc(S(=O)(=O)N2CC(=O)N(N)C(C)(CC(=O)O)C2)cc1
assistant