1-(1-(3,5-Dimethyl-1H-pyrazol-1-yl)ethyl)-2-pyrrolidinone 1-(2-Oxopyrrolidin-1-yl)-1-(3,5-dimethylpyrazol-1-yl)ethane 149775-60-0 2-Pyrrolidinone, 1-(1-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl)-