Using CCCCCC(CO)CO, N#C[C@H]1CC[C@H](C=O)CC1 to produce CCCCC[C@H]1CO[C@H]([C@H]2CC[C@H](C#N)CC2)OC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.