Using C#CCC(NC(=O)C12CC3CC(C1)CC(C(=O)OC)(C3)C2)C(=O)OC(C)(C)C, CC(=O)CC(=O)N(C)C to produce COC(=O)C12CC3CC(CC(C(=O)NC(CC#CCC(=O)N(C)C)C(=O)OC(C)(C)C)(C3)C1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.