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 bace inhibitor and is alzheimer's treatment.
user
CN1OC2(CC3(CCN(c4ccccc4)CC3)Oc3ccc(-c4cccc(C#N)c4)cc32)N=C1N
assistant