Using COc1cc(OC)c2c(Cl)nc(-c3cc(C)c(OCCOCc4ccccc4)c(C)c3)nc2c1 to produce COc1cc(OC)c2cnc(-c3cc(C)c(OCCO)c(C)c3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.