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 cancer treatment, protein kinase inhibitor, cyclindependent kinase inhibitor, cdk inhibitor.
user
O=C(NCCCCNc1cc(-c2ccccc2Cl)nc2c(Br)cnn12)Nc1cccc(Cl)c1
assistant