Using COc1cc2c(cc1OC)C(C)(C)CC2=O, CCOC(=O)CC#N to produce CCOC(=O)C(C#N)=C1CC(C)(C)c2cc(OC)c(OC)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.