RESUMEN
Objective: To study the chemical constituents of the fruiting bodies of Ganoderma daiqingshanense. Methods: The constituents were separated by Silica gel and Sephadex LH-20 column chromatography, their structures were elucidated by spectral data analyses, and the acetylcholinesterase inhibitory activity was detected. Results: Twelve compounds were isolated from the fruiting bodies of G. daiqingshanense and identified as 3β,21β-serratenediol-3-acetate (1), 3β,21α-serratenediol-3-acetate (2), 3-O-acetyltohogenol (3), 20 (29)-lupen-3β-ol (4), lucialdehyde A (5), ganoderic acid Y (6), ergosta-7,22E-diene-3-one (7), ergosta-4,6,8 (14),22-tetraene-3-one (8), ergosta-7,22E-diene-3β-ol (9), 5α,8α-epidioxyergosta-6,22E-diene-3β-ol (10), ankylosaurus acid (11), and euphorbia factor L3 (12). Compounds 5, 11, and 12 showed moderate activities against acetylcholinesterase with inhibitory rates of 17.70%, 22.89%, and 21.22%, respectively. Conclusion: All the compounds are obtained from G. daiqingshanense for the first time and serratene triterpenes (compounds 1-3) are found from family Ganodermataceae for the first time. Compounds 5, 11, and 12 have certain inhibitory activities on acetylcholinesterase.
RESUMEN
Objective: To study the chemical constituents in the whole herb of Lycopodium japonicum. Methods: The chemical constituents were separated and purified by silica gel, Sephadex LH-20 column chromatography, and preparative HPLC. Their structures were identified by various spectroscopic analyses. Results: Thirteen compounds were obtained from the whole herb of L. japonicum by the chromatographic methods on silica gel, ODS, and Sephadex LH-20 column, and preparative HPLC. According to physicochemical properties and spectral data, these compounds were identified as betulin (1), di-(2-ethylhexyl) phthalate (2), α-onocerin (3), 16-oxo-3α-hydroxyserrat-14-en-21β-ol (4), 3-epilycoclavanol (5), (24S)-24-methyl cholesterol (6), lycopodiin A (7), tomentosanan B (8), α-obscurine (9), lycoclavanol (10), serratenediol (11), 1, 2-diarylpropane-3-ol (12), and 13, 13-ethylenedioxy-15, 16-dinwlabd-7-en-6β-ol (13). Conclusion: Compounds 1, 2, 6, 8, and 11-13 are isolated from this plant for the first time. Compounds 2, 6, 8, and 12 are isolated from the plants of this genus for the first time.
RESUMEN
OBJECTIVE: To study the chemical constituents in the whole plant of Huperzia leishangensis. METHODS: Compounds were isolated and purified by Prep-TLC, silica gel chromatography, Sephadex LH-20 and preparative high performance liquid chromatography, and their structures were identified on the basis of comprehensive analysis of their physical and chemical properties, NMR data and literatures. RESULTS: Ten compounds were isolated and elucidated as (15R)-12,16-epoxy-11,14-dihydroxy-8, 11, 13-abietatrien-7-one (I), 21-epi-serratenediol-3, 21-acetate (II), serratenediol-3-acetate (III), 21-epi-serratenediol-3-acetate (IV), 21α-hydroxy-serrat-14-en-3β-ol(V), 21β-hydroxy-serrat-14-en-3β-ol(VI), huperzine A (VII), sucrose (VIII), β-sitosterol (IX) and β-daucosterol(X). CONCLUSION: Compound I-X were for the first time isolated from H. leishangensis.
RESUMEN
Objective: To investigate the chemical constituents in the whole plant of Lycopodium japonicum, native to Suizhou city, Hubei province for the first time. Methods: The compounds were isolated and purified by a combination of silica gel, ODS, and Sephadex LH-20 column chromatography and prep-HPLC. Their chemical structures were established by their physicochemical properties and spectral data. Results: Eight pentacyclic triterpenoids have been isolated and characterized from the methanol extract of the whole plant, they are 21-episerratenediol (1), serratenediol (2), α-onocerin (3), serrat-14-en-3β, 21β, 24-triol (4), 3β, 21α- dihydroxyserrat-14-en-16-one (5), lycoclavanol (6), lyclaninol (7), and 3α, 21β, 24-trihydroxyserrat-14-en-16-one (8). Conclusion: Compounds 1-8 are all serretene triterpenoids, the characteristic chemical constituents in the plants of genus Lycopodium L. Compound 5 is isolated from this plant for the first time.