Using CC(C)(C)OC(=O)NC(C)(C)c1ccc(N(Cc2ccccc2)Cc2ccccc2)cn1 to produce CC(C)(C)OC(=O)NC(C)(C)c1ccc(N)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.