Using NS(=O)(=O)c1cnc(Cl)c(Cl)c1, O=C1NCC2(CCC(CO)CC2)O1 to produce NS(=O)(=O)c1cnc(OCC2CCC3(CC2)CNC(=O)O3)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.