Using CI, COC(=O)C1=Cc2cc(-c3nnn[nH]3)ccc2OCC1 to produce COC(=O)C1=Cc2cc(C3=NNN(C)N3)ccc2OCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.