Using CC1CCc2cc(N(C)C)ccc2N1, CCOC=C(C(=O)OCC)C(=O)OCC to produce CCOC(=O)c1cn2c3c(cc(N(C)C)cc3c1=O)CCC2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.