Using CC(C)(C)OC(=O)NCCCc1cccc(NCC2CCCCC2)c1, O=Cc1nccs1 to produce CC(C)(C)OC(=O)NCCCc1cccc(NCc2nccs2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.