Using O=C([O-])/C=C\C(=O)[O-], O=[N+]([O-])c1cccc2c(N3CCSCC3)nc(N3CCNCC3)cc12 to produce O=[N+]([O-])c1cccc2c(N3CCS(=O)CC3)nc(N3CCNCC3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.