Two new ionones from the fresh roots of Rehmannia glutinosa

Autor: Xiaoke Zheng, Xi-Ling Fan, Yan-Gang Cao, Yan-Ling Liu, Ying-Jie Ren, Weisheng Feng, Chen He, Xu Chen, Yu-han Zhang, Mengnan Zeng
Rok vydání: 2021
Předmět:
Zdroj: Phytochemistry Letters. 46:114-118
ISSN: 1874-3900
Popis: Two new ionones, frehmaglutin F (1) and frehmaglutin G (2), along with eight known compounds (3–10) were isolated from the EtOAc extract of the fresh roots of Rehmannia glutinosa. All the structures were established by interpretation of the MS and NMR spectroscopic data. The absolute configurations of the new compounds were determined by comparing their experimental and calculated ECD spectra. The protective effects of all compounds against LPS-induced normal rat kidney tubule epithelioid (NRK-52e) cells were evaluated by MTT and RTCA assay. The results indicated that compounds 4 and 6–8 exhibited moderate protective activities with the EC50 values of 10.2–40.7 μM.
Databáze: OpenAIRE