Using O=C1CCc2c(cccc2OCC2CO2)N1, CCOC(=O)NC1CCNCC1 to produce CCOC(=O)NC1CCN(CC(O)COc2cccc3c2CCC(=O)N3)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.