Using CC(C)(C)OC(=O)CN1C(=O)C(N2C(=O)c3ccccc3C2=O)CCC(=O)N1Cc1ccccc1 to produce CC(C)(C)OC(=O)CN1C(=O)C(N)CCC(=O)N1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.