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 betasecretase inhibitor and is alzheimer's disease treatment.
user
COCC1(C)SC(N)=NC(C)(c2cc(Nc3ncnc4cc(Cl)cnc34)cnc2F)C1C
assistant