Using CN1C2CCC1CC(O)C2, O=C(O)C(Nc1ccccc1)c1ccccc1 to produce CN1C2CCC1CC(OC(=O)C(Nc1ccccc1)c1ccccc1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.