You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is anti thrombotic.
user
Clc1nc(N2CCOCC2)c2ncnc(Nc3ccccc3)c2n1
assistant