Using CC(=O)OCCOCOC(C)=O, CC(=O)N(C(C)=O)c1nc2nc[nH]c2c(=O)[nH]1 to produce Nc1nc(O)c2ncn(COCCO)c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.