Using O=Cc1ccccc1, CCN(CC)C(=O)C1CN2CCC1C(=O)C2 to produce CCN(CC)C(=O)C1CN2CCC1C(=O)C2=Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.