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 protein tyrosine kinase inhibitor.
user
COc1cc(OC)c(Cl)c(-c2cnc3c(C(=O)Nc4ccc(N5CCN(C(=O)OC(C)(C)C)CC5)cc4)cccc3n2)c1Cl
assistant