Using CC1(c2cnccn2)CO1, CN1CCc2[nH]c3ccc(Cl)cc3c2C1 to produce CN1CCc2c(c3cc(Cl)ccc3n2CC(C)(O)c2cnccn2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.