Using CC(C)(C)OC(=O)N1CC(C=O)CC1C=O, NCc1ccccc1 to produce CC(C)(C)OC(=O)N1CC2CC1CN(Cc1ccccc1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.