Alstonic acids A and B, unusual 2,3-secofernane triterpenoids from Alstonia scholaris

Fei Wang; Fu-Cai Ren; Ji-Kai Liu

doi:10.1016/j.phytochem.2009.03.007

Alstonic acids A and B, unusual 2,3-secofernane triterpenoids from Alstonia scholaris

Phytochemistry. 2009 Mar;70(5):650-4. doi: 10.1016/j.phytochem.2009.03.007. Epub 2009 Apr 8.

Authors

Fei Wang¹, Fu-Cai Ren, Ji-Kai Liu

Affiliation

¹ State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China.

PMID: 19361823
DOI: 10.1016/j.phytochem.2009.03.007

Abstract

2,3-Secofernane triterpenoids, alstonic acids A (1) and B (2), were isolated from the leaves of Alstonia scholaris together with an indole alkaloid, N(1)-methoxymethyl picrinine (3). Their structures were established from MS and NMR spectroscopic analyses and confirmed by single crystal X-ray diffraction analysis.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Alstonia / chemistry*
Crystallography, X-Ray
Magnetic Resonance Spectroscopy
Models, Molecular
Spectrometry, Mass, Electrospray Ionization
Spectrophotometry, Infrared
Triterpenes / chemistry*
Triterpenes / isolation & purification

Substances

Triterpenes