Using CSc1ncc2cc(-c3cc(NC(=O)NCCC(C)(C)C)c(F)cc3C)c(C)nc2n1, N to produce Cc1cc(F)c(NC(=O)NCCC(C)(C)C)cc1-c1cc2cnc(N)nc2nc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.