You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a kras inhibitor.
user
Fc1c(-c2cccc3cccc(F)c23)ncc2c(NCc3cnn4c3OCCC4)nc(OCC34CCCN3CCC4)nc12
assistant