Using CC(C)(C)OC(=O)N1CCC2(CCCN(C(=O)OCc3ccccc3)C2)CC1 to produce O=C(OCc1ccccc1)N1CCCC2(CCNCC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.