You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a betasecretase inhibitor and is alzheimer's disease treatment. Please write the SMILES representation of it.
user
CC1(c2cc(C=C(F)c3ccc(C#N)cn3)ccc2F)N=C(N)SC2(C(=O)N3CCCCC3)CC21
assistant