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 and a anti cancer, belonging to the cancer treatment class of molecules.
user
Nc1ncnc2c1c(-c1nc3ccc(NC(=O)Nc4c(F)cccc4F)cc3s1)cn2C1CCCC1
assistant