Using Nc1nc(Cl)c2ncn(COCCOC(=O)c3ccccc3)c2n1, OCc1ccccc1 to produce Nc1nc(OCc2ccccc2)c2ncn(COCCO)c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.