Using CI, CC(C)(C)OC(=O)N1CCc2cc(NC(=O)c3ccccc3)ccc21 to produce CN(C(=O)c1ccccc1)c1ccc2c(c1)CCN2C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.