You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? The molecule is a kras inhibitor.
user
COc1nc(N2CCOCC(CO)C2)c2cnc(-c3cc(O)cc4ccc(F)c(Br)c34)c(F)c2n1
assistant