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 kras inhibitor and belongs to the cancer treatment class of molecules.
user
COc1ccc(Cl)cc1C(=O)N1CCCC(C(=O)NCC(=O)COc2c(F)c(F)cc(F)c2F)C1
assistant