Using COCCN1C(CN2CCOCC2)=Cc2cc(S(N)(=O)=O)sc2S1(=O)=O to produce NS(=O)(=O)c1cc2c(s1)S(=O)(=O)N(CCO)C(CN1CCOCC1)=C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.