Using Cc1nc2cccc(-c3cc4c([nH]3)CCNC4=O)c2nc1F, COCC(C)(C)N to produce COCC(C)(C)Nc1nc2c(-c3cc4c([nH]3)CCNC4=O)cccc2nc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.