Using CC(C)(C)OC(=O)N1CCN(c2ccc3[nH]ccc3c2)C(Cc2ccccc2)C1 to produce CN1CCN(c2ccc3[nH]ccc3c2)C(Cc2ccccc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.