You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a kras g12c inhibitor. Please represent the molecule in SMILES.
user
C=CC(=O)N1CCN(c2nc(OCC3CC(OCc4ccc(N5CCc6c(nc(OCC7CN(C)CCN7)nc6N6CCN(C(=O)C=C)C(CC#N)C6)C5)c5ccccc45)CN3C)nc3c2CCN(c2cccc4ccccc24)C3)CC1CC#N
assistant