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 belongs to the alzheimer's treatment class of molecules.
user
CCn1c(-c2nnc(C(C)Cc3ccccc3)o2)cc(C(=O)N2CCCC2c2nc(C)cs2)cc1=O
assistant