Using CCOC(OCC)c1ccc(-c2ccccc2-c2nnn(C3CCCCO3)n2)cc1 to produce O=Cc1ccc(-c2ccccc2-c2nnn[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.