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 bace1 inhibitor and belongs to the alzheimer's treatment class of molecules.
user
CCOC(=O)CC(C)(NS(=O)C(C)(C)C)c1cc(Br)ccc1F
assistant