Using OCc1ccccc1, COC(=O)CC12CCC(c3ccc(-c4ccc(N)cc4)cc3)(CC1)CO2 to produce Nc1ccc(-c2ccc(C34CCC(CC(=O)OCc5ccccc5)(CC3)OC4)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.