Using COC(=O)c1ccccc1C(=O)NC(C)(C(N)=O)C(C)(C)C to produce CC(C)(C)C1(C)C(=O)N=C2c3ccccc3C(=O)N21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.