1-(3,4-DIMETHYLPHENYL)-5-OXO-3-PYRROLIDINECARBOXYLIC ACID, 1-(3,4-DIMETHYLPHENYL)-5-OXOPYRROLIDINE-3-CARBOXYLIC ACID, 1-(3,4-DIMETHYLPHENYL)-2-OXOPYRROLIDINE-4-CARBOXYLIC ACID;AKOS BB-6979, TIMTEC-BB SBB007428, 3-pyrrolidinecarboxylic acid, 1-(3,4-dimethylphenyl)-5-oxo-, 1-(3,4-dimethylphenyl)-5-keto-pyrrolidine-3-carboxylic acid