Using CCCCCC(CO)CO, CCCCC[C@H]1CC[C@H](CCCCc2ccc(C=O)cc2)CC1 to produce CCCCC[C@H]1CC[C@H](CCCCc2ccc(C3OCCCO3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.