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
O=C1CC2(CCCN(c3nc(OCC45CCCN4CCC5)nc4c(F)c(-c5cccc6cccc(F)c56)ncc34)C2)C(=O)N1
assistant