Novel heteroleptic cis-(C⁁N)2Pd(ii) chelates for the preparation of enantiopure planar chiral cyclopalladated 2-[tricarbonyl(η6-phenyl)chromium]pyridineElectronic supplementary information (ESI) available: preparation procedures, spectroscopic data for 5a–c, NMR and CD spectra for (pR)-3 and (pS)-3, crystal data for 5b, 5c, (pR)-3 and (pS)-3.

2003 ◽  
pp. 658-659 ◽  
Author(s):  
Alexsandro Berger ◽  
Jean-Pierre Djukic ◽  
Michel Pfeffer ◽  
André de Cian ◽  
Nathalie Kyritsakas-Gruber ◽  
...  
Keyword(s):  
Spectroscopic Data ◽  
Supplementary Information ◽  
Crystal Data ◽  
Cd Spectra ◽  
C Nmr

scholarly journals Flavonoid Diversity of Saussurea and Serratula Species in Tien Shan Mountains

2007 ◽  
Vol 2 (11) ◽  
pp. 1934578X0700201 ◽  
Author(s):  
Katsumi Kusano ◽  
Tsukasa Iwashina ◽  
Junichi Kitajima ◽  
Tamaki Mishio
Keyword(s):  
Methyl Ether ◽  
Spectroscopic Data ◽  
Mass Spectrometric ◽  
Tien Shan ◽  
Adjacent Area ◽  
Flavonoid Composition ◽  
Tien Shan Mountains ◽  
C Nmr

Nine Saussurea species, S. alberti, S. elegans, S. gnaphalodes, S. involucrata, S. konuroba, S. kuschakewiczii, S. leucophylla, S. schanginiana and S. sordida, and Serratula lyratifolia from the Tien Shan Mountains and adjacent area were chemically characterized for flavonoids. Thirty-one flavonoids and one hydroquinone were isolated from the leaves of these species and identified from mass spectrometric, UV, 1H and 13C NMR spectroscopic data, by characterization of hydrolyzates, and direct TLC and HPLC comparisons with authentic samples as kaempferol 3-O-rutinoside (1), quercetin 3-O-rutinoside (2), isorhamnetin 3-O-rutinoside (3), quercetin 3-O-glucoside (4), quercetin 3-O-galactoside (5), kaempferol 5-O-glucoside (6), kaempferol 7-O-glucoside (7), quercetin 5-O-glucoside (8), quercetin 7-O-glucoside (9), isorhamnetin 5-O-glucoside (10), luteolin (11), hispidulin (12), nepetin (13), selagin 7-methyl ether (14), selagin (15), velutin (16), luteolin 7-methyl ether (17), jaceosidin (18), apigenin 7-O-rutinoside (19), apigenin 7-O-glucoside (20), luteolin 7-O-rutinoside (21), luteolin 7-O-glucoside (22), luteolin 7-O-galactoside (23), luteolin 7-O-glucuronide (24), hispidulin 7-O-glucoside (25), nepetin 7-O-glucoside (26), luteolin 5-O-glucoside (27), isovitexin (28), apigenin 6,8-di-C-glycoside (29), isoorientin (30), luteolin 8-C-glycoside (31), and arbutin (32). The nine surveyed Saussurea species differed in their flavonoid composition. It was shown that the genus is not only morphologically, but also chemically diversified.

scholarly journals An Antibacterial Isovaleronitrile Diglycoside From Detarium microcarpum Guill. Perr. (Fabaceae)

2020 ◽  
Vol 15 (7) ◽  
pp. 1934578X2093693
Author(s):  
William F. Feudjou ◽  
Arnaud M. Mbock ◽  
Marlyse B. W. Ouahouo ◽  
Valérie T. Sielinou ◽  
Racéline K. Gounoue ◽  
...  
Keyword(s):  
Spectroscopic Data ◽  
Salmonella Enteritidis ◽  
Methanolic Extract ◽  
Antibacterial Activities ◽  
Salmonella Typhi ◽  
Methyl Gallate ◽  
Extensive Analysis ◽  
Detarium Microcarpum ◽  
Inhibition Concentration ◽  
C Nmr

A new isovaleronitrile diglycoside, named microcarposide (1), together with 6 known compounds: lupeol (2), betulinic acid (3), β-sitosterol glucoside (4), methyl gallate (5), luteolin (6), and epicatechin (7), was isolated from the methanolic extract of the fruits of Detarium microcarpum Guill. Perr. The structures of the compounds were determined by extensive analysis of 1D- and 2D-1H and 13C NMR spectroscopic data in conjunction with mass spectrometry and by comparison with data reported in the literature. Compound 1 was characterized as (2 R)-2-[(6″- O-β-l-rhamnopyranosyl-β-d-glucopyranosyl)oxy]-3-methylbutanenitrile. Some of the isolated compounds were evaluated for their antibacterial activities against several microorganisms; only compound 1 was active against Salmonella typhi, Salmonella enteritidis, and Salmonella typhimurium with minimum inhibition concentration values of 153.4, 76.7, and 76.7 μM, respectively.

scholarly journals Spirostanol Saponins from Asparagus sprengeri and Their Molluscicidal Activity

2007 ◽  
Vol 2 (7) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Mona A. Mohamed
Keyword(s):  
Schistosoma Mansoni ◽  
Intermediate Host ◽  
Spectroscopic Data ◽  
Dry Powder ◽  
Biomphalaria Alexandrina ◽  
Butanol Extract ◽  
Spirostanol Saponins ◽  
Molluscicidal Activity ◽  
C Nmr

Two new spirostane saponins namely (25 R)-6α-[(β-D-glucopyranosyl)oxy]-5α-spirostan-3β-yl β-D-galactopyranoside (1) and (25 R)-6α-[(β-D-glucopyranosyl)oxy]-27-hydroxy-5α-spirostan-3β-yl β-D-glucopyranoside (2), together with three known metabolites (25 S)-5β-spirostan-3-β-yl O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranoside (3), (25 R)-5α-spirostan-3-β-yl O-β-D-galactopyranosyl-(1→2)- O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside (4) and (25 R)-5α-spirostan-3-β-yl O-β-D-glucopyranosyl-(1→3)- O-[β-D-xylopyranosyl-(1→2)]- O-β-D-glucopyranosyl-(1→4)-β-D-glactopyranoside (5) were identified from the leaves of Asparagus sprengeri Regel (Asparagaceae). Determination of the structures was based on chemical and spectroscopic data (HRESI-MS/MSn, 1H, DEPT 13C NMR, 1H-1H COSY, HSQC and HMBC). The dry powder, the 1-butanol extract of the leaves, and the isolated compounds (3–5) exhibited molluscicidal properties against Biomphalaria alexandrina snails (the intermediate host of Schistosoma mansoni) [LC90 = 150, 40, 7, 10 and 13 ppm, respectively], while compounds 1 and 2 were molluscicidally inactive.

scholarly journals A New Ionone Glucoside and Terpenoid Constituents from Achillea biebersteinii and their Antifungal Activity

2006 ◽  
Vol 1 (9) ◽  
pp. 1934578X0600100
Author(s):  
Ahmed A. Mahmoud ◽  
Shar S. Al-Shihry
Keyword(s):  
Antifungal Activity ◽  
Spectroscopic Data ◽  
Aerial Parts ◽  
Achillea Biebersteinii ◽  
First Time ◽  
C Nmr

A new ionone glucoside, (-)(4R*, 5R*)-5-(β-D-glucopyranosyloxymethyl)-4-hydroxy-3,5-dimethyl-4-((E)-3-oxobut-1-enyl)cyclohex-2-enone (biebersteiniside) (1), in addition to four known compounds, 6-epiroseoside (2), ascaridole (3), strictic acid (4) and centipedic acid (5) have been isolated from the aerial parts of Achillea biebersteinii Afan. The structures were determined from extensive 500 MHz NMR 1D (1H and 13C NMR) and 2D (1H-1H COSY, HMQC, HMBC and NOESY) spectroscopic data. Compounds 2–5 are reported for the first time from this plant. In addition, compounds 1a and 3–5 showed antifungal activity.

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