You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a anti thrombotic.
user
O=C(NC1(C(=O)Nc2ccc(C(=O)N3CCCC3)c(Cl)c2)CCOC1)c1ccc(Br)s1
assistant