New dibenzofuran and anthraquinone from Usnea longissima.
- Author:
Jie FENG
1
;
Xiuwei YANG
Author Information
- Publication Type:Journal Article
- MeSH: Anthraquinones; analysis; chemistry; isolation & purification; Benzofurans; analysis; chemistry; isolation & purification; Magnetic Resonance Spectroscopy; Usnea; chemistry
- From: China Journal of Chinese Materia Medica 2009;34(7):852-853
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the chemical constituents of Usnea longissima.
METHODThe compounds were isolated and purified by the methods of solvent extraction and chromatographic technique, and their structures were identified on the basis of the analyses of spectral data.
RESULTTwo compounds were obtained and identified as 3, 6-diacetyl-2, 7, 9-trihydroxy-8, 9b-dimethyl-1 [9bH]-dibenzofuranone(1) and 1, 3, 8-trihydroxy4, 6-dimethyl-9, l0-anthracenedione(2), respectively.
CONCLUSIONCompounds 1 and 2 were new compounds and were named as longiusnine and longissimausnone, respectively.
