Using CCOC(=O)c1cn2cc(-c3cnc(CC(C)C)s3)cc(-c3ccc(F)cc3F)c2n1 to produce CC(C)Cc1ncc(-c2cc(-c3ccc(F)cc3F)c3nc(C(=O)O)cn3c2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.