Using CN1C(=O)CC(c2c[nH]c3cc(NC(=O)c4ccccc4)ccc23)C1=O to produce CN1CCC(c2c[nH]c3cc(NCc4ccccc4)ccc23)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.