Using CCCCCCCCCC1SC(c2cccnc2)N(CCN)C1=O, CC(=O)OC(C)=O to produce CCCCCCCCCC1SC(c2cccnc2)N(CCNC(C)=O)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.