Using CCOC(CCNC(=O)[C@@H](NC(=O)OCc1ccccc1)[C@H](C)O)OCC, CCCCCCCCCCCCCC(=O)O to produce CCCCCCCCCCCCCC(=O)O[C@@H](C)[C@H](NC(=O)OCc1ccccc1)C(=O)NCCC(OCC)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.