Using C[C@H](NC(=O)OC(C)(C)C)C(=O)O, COC[C@H](CCOCc1ccccc1)NCC(OC)OC to produce COC[C@H](CCOCc1ccccc1)N(CC(OC)OC)C(=O)[C@H](C)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.