Using O=Cc1ccccc1, CC(=O)N1CC(C)(C)c2cc(N)c(N)cc21 to produce CC(=O)N1CC(C)(C)c2cc3nc(-c4ccccc4)[nH]c3cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.