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 a anti viral that impacts hepatitis b treatment.
user
Cn1ccc2cc(-n3c(C(=O)NC(=O)c4ccccc4)c4n(c3=O)CCN(C(=O)c3ccc(Br)c(Cl)c3)C4)ccc21
assistant