Using CSCn1nnc2c(C(=O)NNC(=O)c3ccccc3)ncn2c1=O to produce CSCn1nnc2c(-c3nnc(-c4ccccc4)o3)ncn2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.