Using Clc1ccccc1-n1ncc2c(Cl)ncnc21, COC[C@@H](C)OC[C@H](O)C(=O)OC to produce COC[C@@H](C)OC[C@H](Oc1ncnc2c1cnn2-c1ccccc1Cl)C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.