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 ns5a inhibitor and is anti viral.
user
COC(=O)NC(C)C(=O)N1CCCC1c1ncc(-c2cc3sc(Br)cc3s2)[nH]1
assistant