A-ring Formylated Flavonoids and Oxoaporphinoid Alkaloid from Dasymaschalon rostratum Merr. et Chun
10.3321/j.issn:1001-5302.2001.01.013
- VernacularTitle:喙果皂帽花中的A环具醛基黄酮类成分和氧化阿朴啡类生物碱
- Author:
Li-Dong ZHOU
1
;
Jing-Guang YU
;
Jia GUO
;
Shi-Lin YANG
Author Information
1. Institute of Medicinal Plants,CAMS PUMC
- From:
China Journal of Chinese Materia Medica
2001;26(1):39-41
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the chemical components in the stem of Dasymaschalon rostratum.Method:The components were extracted with solvent, separated and purified with chromatographic methods, identified by NMR, MS, UV, IR and physicol-chemical constants.Result:Three A-ring-formylated flavonoids and one oxoaporphinnoid aikaloid were isolated and identified as lawinal, unonal, isounonal and 7-oxodehydroasimilobine.Conclusion:All the four compounds were isolated for the first time from the genus Dasymaschalon.According to all the phytochemistry papers on Annonaceae, A-ring formylated flavonoids in this family were isolated from the genus Desmos for the first time. Thus, it is an interesting discovery in chemotaxonomy which reveals the close relationship between the two genera Desmos and Dasymaschalon.
