Monoterpenes from an aqueous extract of the Angelica sinensis root head
10.16438/j.0513-4870.2022-1425
- VernacularTitle:当归头水提取物中的单萜类成分
- Author:
Zhao XIA
1
;
You-zhe CHEN
1
;
Xiao-qiang LEI
1
;
Wei-ping LI
2
;
Rong LIU
2
;
Qing-lan GUO
1
;
Jian-gong SHI
1
Author Information
1. Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
2. Gansu Provincial Laboratory of Fine Chemicals, Gansu Chemical Industry Research Institute Co., Ltd., Lanzhou 620100, China
- Publication Type:Research Article
- Keywords:
Umbelliferae;
italic>Angelica;
italic>Angelica sinensis root head;
aqueous extract;
monoterpene;
angelinone;
angelinol
- From:
Acta Pharmaceutica Sinica
2023;58(6):1641-1649
- CountryChina
- Language:Chinese
-
Abstract:
Eleven monoterpenes including seven new chemical structures or new natural products covering two pairs of scalemic enantiomers, together with four known analogues, were isolated from an aqueous extract of the Angelica sinensis root head (Guitou) by separation techniques of column chromatography over macroporous adsorbent resin, MCI resin, silica gel, Sephadex LH-20, and Toyopearl HW-40C, together with preparative thin-layer chromatography as well as reversed phase and chiral HPLC. Their structures were determined by spectroscopic data analysis, combined with theoretic calculation of electronic circular dichroism (ECD) spectra and single crystal X-ray diffraction. The new structures or new natural products named (+)-/(-)-angelinones A and B [(+)-/(-)-1 and (+)-/(-)-2], angelinones C and D (3 and 4), and angelinol A (5), respectively, while the known analogues were 6β,9-dihydroxy-(+)-α-pinene (6), 1,1,5-trimethyl-2-hydroxymethyl-cyclohexa-2,5-dien-4-one (7), jasminol E (8), and (+)-trans-sobrerol (9). All the isolates were reported in this plant for the first time, except for the previously reported 6 from an ethanol extract of the aerial parts of A. sinensis, of which the structure was confirmed by X-ray crystallography in this study.
