Using C[O-], CNc1nc(-c2cccnc2)nc2ccc(-c3cccc(OCCCl)c3)cc12 to produce CNc1nc(-c2cccnc2)nc2ccc(-c3cccc(OCCOC)c3)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.