Using CC(C)(C)OC(=O)N1CCN(c2ccccc2C=O)CC1, CNC to produce CN(C)Cc1ccccc1N1CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.