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 alzheimer's treatment and is gamma secretase modulator.
user
COc1cc(C=C2CCCN3C2=NOCC3CC(=O)NCC(C)(F)F)ccc1-n1cnc(C)c1
assistant