Chemical Constituents of Polyalthia nemoralis

✍ Scribed by Xiu-Feng He; Xiao-Ning Wang; Cheng-Qi Fan; Li-She Gan; Sheng Yin; Jian-Min Yue

• Book ID: 102254831
• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: German
• Weight: 97 KB
• Volume: 90
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.200790080

✦ Synopsis

Abstract

Three new natural products, the taraxastane‐type triterpenoid 1, the azafluorene‐based constituent 2‐hydroxyonychine (2), and the diterpenoid nemoralisin (3) were isolated from the EtOH extract of Polyalthia nemoralis, along with five known compounds. The structures of the new compounds were established by in‐depth spectroscopic and mass‐spectrometric analyses, as well as by chemical transformation.