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.
user
CC(=O)NC(Cc1cc(F)cc(F)c1)C(O)CNC1(c2cccc(-n3ccc(C(C)=O)c3)c2)CCCCC1
assistant