You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a cdk inhibitor, protein kinase inhibitor, cyclindependent kinase inhibitor and belongs to the cancer treatment class of molecules.
user
COCCOCC(=O)N1CCCC(CNc2cc(-c3ccccc3Cl)nc3c(Br)cnn23)C1
assistant