You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a protein kinase inhibitor. Use the above information to create a molecule.
user
CC(=O)N1CCN(C(=O)c2cc3c(ccc4cnc(Nc5cccc(C(C)(C)C)c5)nc43)s2)CC1
assistant