Using O=S1(=O)OCCO1, Cc1c(C(=O)Nc2ccc(S(C)(=O)=O)cc2)c[nH]c1-c1ccccc1C(F)(F)F to produce Cc1c(C(=O)Nc2ccc(S(C)(=O)=O)cc2)cn(CCO)c1-c1ccccc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.