Using O=C([O-])[O-], N#Cc1c[nH]c2nc(Nc3ccc4c(c3)CCC(=O)N4)nc(NC3CC3)c12 to produce NC(=O)c1c[nH]c2nc(Nc3ccc4c(c3)CCC(=O)N4)nc(NC3CC3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.