Using CSSC(C)(C)CCC(=O)O, NCCCOc1cc(CO)cc(CO)c1 to produce CSSC(C)(C)CCC(=O)NCCCOc1cc(CO)cc(CO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.