Using COc1ccc(CCNC(=O)CCCCC(=O)O)cc1OC, NC1Cc2ccccc2C1 to produce COc1ccc(CCNC(=O)CCCCC(=O)NC2Cc3ccccc3C2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.