Using CC(=O)c1cc2c(N3CCN(CCc4ccccc4)CC3)cccc2s1 to produce CC(O)c1cc2c(N3CCN(CCc4ccccc4)CC3)cccc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.