Using Cc1nn(-c2ccnc(Nc3ccc4c(c3)c(Cl)c(C)n4C)n2)cc1C=O, O[C@H]1CNOC1 to produce Cc1nn(-c2ccnc(Nc3ccc4c(c3)c(Cl)c(C)n4C)n2)cc1CN1C[C@H](O)CO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.