| Title : Peraksine derivatives with potential anti-inflammatory activities from the stems of Rauvolfia vomitoria - Zhan_2020_Fitoterapia__104704 |
| Author(s) : Zhan G , Miao R , Zhang F , Hao Y , Zhang Y , Khurm M , Zhang X , Guo Z |
| Ref : Fitoterapia , :104704 , 2020 |
|
Abstract :
Five new peraksine derivatives rauvomine C-G (1-5) along with four known analogues (6-9) were isolated from the stems of Rauvolfia vomitoria Afzel. (Apocynaceae). Structural determinations of the new monoterpene indole alkaloids were elucidated via comprehensive spectroscopic analyses and ECD calculations. Rauvomine C (1) with an unprecedented framework type represents the first example of C(18) peraksine-type nor-monoterpene indole alkaloid featuring a chlorine atom at C-16 and its plausible biosynthetic pathway was also proposed. All the isolates were evaluated for their anti-inflammatory, cytotoxic, and acetylcholinesterase inhibitory activities. Among them, the new framework alkaloid rauvomine C (1) showed significant anti-inflammatory activities on NO production in LPS-induced RAW264.7 mouse macrophages with IC(50) value of 10.76 muM. Additionally, peraksine-type alkaloids featuring pyran ring (5, 8, and 9) exhibited potential anti-inflammatory activities with IC(50) values ranging from 17.52 to 20.99 muM. |
| PubMedSearch : Zhan_2020_Fitoterapia__104704 |
| PubMedID: 32827693 |
Zhan G, Miao R, Zhang F, Hao Y, Zhang Y, Khurm M, Zhang X, Guo Z (2020)
Peraksine derivatives with potential anti-inflammatory activities from the stems of Rauvolfia vomitoria
Fitoterapia
:104704
Zhan G, Miao R, Zhang F, Hao Y, Zhang Y, Khurm M, Zhang X, Guo Z (2020)
Fitoterapia
:104704