You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a kras inhibitor. Please write the SMILES representation of it.
user
CC=C(c1ncc2c(N3CCCC(CN)(NS)C3)nc(OCC34CCCN3CCC4)nc2c1F)c1c(F)cccc1CCCC
assistant