Using CC(Cc1ccc2c(c1)OC(C(=O)O)(C(=O)O)O2)NCC(O)c1cccc(Cl)c1, CCC(CC)CO to produce CCC(CC)COC(=O)C1(C(=O)OCC(CC)CC)Oc2ccc(C[C@@H](C)NC[C@H](O)c3cccc(Cl)c3)cc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.