Using COC(=O)Cn1ccc2c(NS(C)(=O)=O)cccc21, ClCCN1CCOCC1 to produce COC(=O)Cn1ccc2c(N(CCN3CCOCC3)S(C)(=O)=O)cccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.