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 kras inhibitor.
user
CCc1ccnc(C(C)C)c1-n1c(=O)c2c(c3cc(Cl)c(-c4c(F)cccc4OC)c(F)c31)N1CC(C)N(C(=O)OC(C)(C)C)CC1C(=O)N2
assistant