One new monoterpene glycoside (), one new phenyl glycoside (), one new caffeoyl derivative (), were isolated from (Roxb.) Schott., along with four known compounds (). Structures of the isolated compounds were elucidated by extensive analysis of spectroscopic data, especially 2D NMR data and comparison with literatures. All isolates were evaluated for anti-inflammatory activity against nitric oxide (NO) production in vitro. Compounds and exhibited moderate inhibitory effects on NO production with IC values of 12.2 ± 0.8 and 18.9 ± 0.3 μM, respectively.
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http://dx.doi.org/10.3390/molecules23102577 | DOI Listing |
Fitoterapia
March 2024
Chemical Technology Research Institute of Shandong, Qingdao University of Science and Technology, Jinan 250014, PR China. Electronic address:
One new phenolic cyclobutantetraol ester united chromone glycoside (1), one new amide (2), and three new phenyl ethanol glycosides (3-5) were obtained from the water extract of Scindapsus officinalis (Roxb.) Schott, in which compound 1 was the first reported structure incorporating the phenolic cyclobutantetraol ester and chromone via the glucose phenolic metabolites in nature. Structures of the isolated compounds, including absolute configurations, were elucidated according to the analysis of HRESIMS, NMR, ECD and BLYP/6-31G* geometry optimization calculations of C NMR data.
View Article and Find Full Text PDFBMC Complement Med Ther
September 2023
Pharmaceutical Sciences Research Division, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh.
Background: Endophytic fungi have recently been recognized as an impressive source of natural biomolecules. The primary objective of the research was to isolate fungal endophytes from Thysanolaena maxima Roxb., Dracaena spicata Roxb.
View Article and Find Full Text PDFZookeys
September 2020
Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650500, China.
The genus de Meijere (Diptera, Drosophilidae) is known to include 30 described and nearly 60 undescribed species classified into six species groups. Among these, the group of seven known species (two Southeast Asian and five Chinese) proved to be peculiar for its specificity on monsteroid (subfamily Monsteroideae, family Araceae) host plants. In this paper, two new species, Jiao & Gao, and Jiao & Gao, , are described as members of the group with specimens collected from inflorescences of the monsteroid host species (Roxb.
View Article and Find Full Text PDFRSC Adv
March 2020
Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Shandong Key Laboratory of TCM Quality Control Technology Jinan 250014 P. R. China
Herein, we provide an effective separation strategy based on liquid-liquid extraction and two different modes of high speed counter-current chromatography (HSCCC) for the rapid enrichment and separation of compounds from -butanol-partitioned samples of . Liquid-liquid extraction of the crude sample was performed using a two-phase solvent system composed of ethyl acetate--butanol-water with volume ratios of 9 : 0 : 9, 5 : 4 : 9 and 3 : 6 : 9 (v/v), which allowed components with lower polarity and higher polarity to be enriched separately with the first ratio and the other two ratios, respectively. For separation, the conventional and recycling mode HSCCC were combined to develop a strategy for the acquisition of eight phenolic derivatives from the enriched samples, including one new compound, 7--[β-d-xylopyranosyl-(1-4)-β-d-glucopyranosyl-(1-4)-α-l-rhamnopyranosyl]-5-hydroxy-2-methyl-4-1-benzopyran-4-one (5), three caffeoylquinic acid isomers, 3--caffeoylquinic acid butyl ester (6), 5--caffeoylquinic acid butyl ester (7), 4--caffeoylquinic acid butyl ester (8), salidroside (1), drynachromoside B (2), 3,4-dihydroxy-benzoic acid (3), and 5,7-dihydroxy-2-methyl chromone (4).
View Article and Find Full Text PDFFitoterapia
September 2019
Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, PR China. Electronic address:
Five new caffeoyl cyclobutantetraol esters (1-5) and one hydroxycinnamoyl cyclobutantetraol ester (6), were isolated from Scindapsus officinalis (Roxb.) Schott, which were the first reported phenolic metabolites incorporating a cyclobutantetraol in nature. Structures of the isolated compounds, including absolute configurations, were elucidated by spectroscopic analysis, especially 2D NMR techniques and exciton chirality CD (ECCD) method.
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