Using CC(c1cccc2ccccc12)N1CCC2CCN(CCc3ccccc3)C(=O)C21 to produce CC(c1cccc2ccccc12)N1CCC2CCN(CCc3ccccc3)CC21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.