Using O=C1CCC(c2ccc(C3=NNC(=O)CC3)cc2)=NN1 to produce O=C1CCC(c2ccc(-c3ccc(=O)[nH]n3)cc2)=NN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.