Using CCN=C=NCCCN(C)C, CCC(CC)n1cc(-c2csc(C(=O)O)c2)c2c(=O)[nH]ccc21 to produce CCC(CC)n1cc(-c2csc(C(N)=O)c2)c2c(=O)[nH]ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.