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 tyrosine kinase inhibitor.
user
CC1(C)C(=O)CNC2=CCC(Nc3nc4c(N5CCC6(CC(=O)NC6=O)C5)nccn4n3)=CC=C21
assistant