Using CCOC(=O)C1=C(COCC(OC)OC)NC(C)=C(C(=O)OC)C1c1ccccc1Cl to produce CCOC(=O)C1=C2COC=CN2C(C)=C(C(=O)OC)C1c1ccccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.