Using O=S(=O)(O)O, CCNC(=O)Nc1nc2cc(-c3cnc(C45CCOCC4O5)nc3)cc(-c3ccccn3)c2s1 to produce CCNC(=O)Nc1nc2cc(-c3cnc(C4(O)CCOCC4O)nc3)cc(-c3ccccn3)c2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.