You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a protein tyrosine kinase inhibitor and belongs to the cancer treatment class of molecules.
user
COc1cc(C)cc2cc(-c3cc(C(=O)N4CCC(C)(NC(=O)OC(C)(C)C)C4)n4ncnc(N)c34)sc12
assistant