Using NCCc1ccc(O)c(O)c1, CSCC[C@H](NC(C)=O)C(=O)O to produce CSCC[C@H](NC(C)=O)C(=O)NCCc1ccc(O)c(O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.