Using Cc1ccc(N2CCCN(C(=O)OC(C)(C)C)CC2)cc1C(=O)NCC12CC3CC(CC(C3)C1)C2 to produce O=C(NCC12CC3CC(CC(C3)C1)C2)c1cc(N2CCCNCC2)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.