Using COc1ccc(CN2CC3(CCN(C(=O)OC(C)(C)C)CC3)OC(c3ccccc3)C2=O)cc1 to produce O=C1NCC2(CCNCC2)OC1c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.