Using O=C(Cl)C12CC3CC(CC(C3)C1)C2, C=CCNCC(O)COc1cccc2c1CC(=O)N2 to produce C=CCNCC(COc1cccc2c1CC(=O)N2)OC(=O)C12CC3CC(CC(C3)C1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.