Using CC(C)(C)OC(=O)N1CCN(c2ccc(-c3cccc4nc(NC(=O)C5CC5)nn34)cc2)CC1 to produce O=C(Nc1nc2cccc(-c3ccc(N4CCNCC4)cc3)n2n1)C1CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.