Using CCOC(=O)CN1C(=O)C2(CCCC2)NC[C@H]1c1ccccc1 to produce O=C(O)CN1C(=O)C2(CCCC2)NC[C@H]1c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.