Using COC(=O)CCc1c(-c2ccccc2)n(C)c(=O)c2ccccc12 to produce Cn1c(-c2ccccc2)c(CCC(=O)O)c2ccccc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.