Using CC(C)c1c(CO)c(-c2ccccc2)c2c3ccccc3cnn12 to produce CC(C)c1c(C=O)c(-c2ccccc2)c2c3ccccc3cnn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.