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1.
Chinese Traditional and Herbal Drugs ; (24): 36-41, 2017.
Article in Chinese | WPRIM | ID: wpr-853055

ABSTRACT

Objective: To study triterpenoids of Paliurus ramosissimus. Methods: Six triterpenoids were obtained by modern chromatography technologies, such as repeated chromatography on silica gel, ODS, Sephadex LH-20, and preparative HPLC. Their structures were elucidated on the basis of combination of IR, mass spectrometry, and NMR spectroscopy. Results: Six triterpenoids were isolated from the ethyl acetate soluble parts obtained from 95% aq. ethanol extract of the aerial parts of P. ramosissimus. They were identified as 22β,24-dihydroxy-A(1)-nor-2,20(29)-lupindien-27,28-dicarboxylic acid (1), zizyberenalic acid (2), 3-O-protocatechuoylceanothic acid (3), ceanothetric acid (4), 2-O-caffeoylalphitolic acid (5), and 3-O-caffeoylalphitolic acid (6). Conclusion: Compound 1 paliurus ramosissimus acid A is a new compound. Compounds 2-6 are isolated from P. ramosissimus for the first time. And the complete NMR data of compound 3 has been presented in this paper for the first time.

2.
Chinese Traditional and Herbal Drugs ; (24): 2355-2360, 2015.
Article in Chinese | WPRIM | ID: wpr-854012

ABSTRACT

Objective: To study the triterpenoids from the fruiting body of Inonotus obliquus. Methods: The compounds were isolated and purified by silica gel, MCI gel, Sephadex LH-20 column chromatographies, and their structures were mainly elucidated on the basis of physicochemical characteristics and spectral analysis. Results: Fifteen compounds were isolated from 95% EtOH extract of I. obliquus, and were identified as 3-oxo-lanosta-8, 24-diene-21-al (1), lanosterol (2), 3β-hydroxy-lanosta-8, 24-diene-21-al (3), betulin (4), inotodiol (5), trametenolic acid (6), 3β, 21-dihydroxy-lanosta-8, 24-diene (7), oleanic acid (8), ursolic acid (9), betulinic acid (10), inonotusane A (11), inoterpene D (12), 3-O-acetyl-11α, 12α-epoxy-oleanan-28, 13β-olide (13), ergosterol (14), and ergosta-4, 6, 8, 22-tetraene-3-one (15), respectively. Conclusion: Compound 1 is a new triterpenoid named as inonotusane D, while compounds 9, 13, and 15 are isolated from I. obliquus for the first time.

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