11-Oxoisomogroside V
11-Oxoisomogroside V (compound 3) is a cucurbitacin isolated from the crude extract of Luo Han Guo. 11-Oxoisomogroside V activates the transcriptional activity of PGC-1α. In the luciferase experiment, the results showed that 10 μM and 20 μM 11-Oxoisomogroside V could increase the luciferase activity to 133.79% and 143.81%[1].