Using CC(C)(C)OC(=O)N1CCc2[nH]nc(-c3ccc4nccn4c3)c2C1 to produce c1cn2cc(-c3n[nH]c4c3CNCC4)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.