Using NCC(O)CO, CCCCCCCCCCCCCCCCN(C(=O)OC(C)(C)C)c1csc(C(=O)n2ccnc2)c1 to produce CCCCCCCCCCCCCCCCNc1csc(C(=O)NCC(O)CO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.