Using C1CCOC1, CC(C)Cc1ccc(-c2nc(-c3ncc(Cl)cn3)no2)cc1 to produce CC(C)Cc1ccc(-c2nc(-c3ncc(C=O)cn3)no2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.