Using Cc1cc(C)c(Oc2nc(Cl)nc(Cl)n2)c(C)c1, OCC1CO1 to produce Cc1cc(C)c(Oc2nc(Cl)nc(OCC3CO3)n2)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.