Results 141 to 150 of about 4,357 (177)

Three phenylethanoid glycosides and an iridoid glycoside from Picrorhiza scrophulariiflora

Phytochemistry, 1998
Three new phenylethanoid glycoside, named scrosides A-C and a new iridoid glycosides, named picroside IV, have been isolated from the underground parts of Picrorhiza scrophulariiflora, together with 11 known compounds. Their structures were elucidated by the means of 2D NMR spectroscopy and chemical methods.
J X, Li, P, Li, Y, Tezuka, T, Namba, S, Kadota   +4 more
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Iridoid glycoside biosynthesis in Penstemon secundiflorus. Another H-5, H-9 trans-iridoid glycoside

Phytochemistry, 1998
Isolation and characterization of the new iridoid 10-hydroxy-(5 alpha H)-6-epidihydrocornin from Penstemon secundiflorus (Scrophulariaceae) is described. In biosynthetic experiments, deoxyloganic acid was incorporated into the trans-fused iridoid glycosides (5 alpha H)-6-epidihydrocornin and 10-hydroxy-(5 alpha H)-6-epidihydrocornin in P. secundiflorus.
R E, Krull, F R, Stermitz, H, Franzyk, S R, Jensen   +3 more
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A new iridoid glycoside from Linaria genestifolia

Fitoterapia, 2006
A new iridoid glycoside named genestifolioside (1) was isolated from the ethanol extract of Linaria genestifolia. Its structure was defined by spectral analysis.
Sener, B, Kousar, F, Zubair, M, Afsar, K, Ali, MS, Choudhary, ML, Ahmad, VU   +6 more
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THE OCCURRENCE OF IRIDOID GLYCOSIDES IN THE LABIATAE

Acta Botanica Neerlandica, 1972
SUMMARY Iridoid glycosides were found in many species of the following taxa of the Labiatae: Prostantheroideae, Ajugoideae, Prasioideae, Scutellarioideae, Stachydoideae-Marrubieae and St.-Stachydeae. Iridoid glycosides were not found in any species of the following subfamilies: Rosmarinoideae, Ocimoideae, Lavanduloideae, and Stachydoideae (except ...
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Iridoid Glycosides from Hedyotis corymbosa

Helvetica Chimica Acta, 2007
AbstractThree new iridoid glycosides, hedycorysides A–C (1–3, resp.), were isolated from the whole plant of Hedyotis corymbosa (Linn.) Lam., along with four known compounds. Their structures were elucidated by extensive 1D‐ and 2D‐NMR analysis, as well as by HR‐ESI‐MS experiments. The three new compounds are the first benzoylated geniposide derivatives
Wei Jiang, Li‐Sha Kuang, Ai‐Jun Hou, Min Qian, Ji‐Zong Li   +4 more
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Iridoid Glycosides from Barleria lupulina

Journal of Natural Products, 2015
Phytochemical investigation of an extract of the aerial part of Barleria lupulina resulted in the identification of four new iridoid glycosides (1-4), together with 14 known analogues (5-18). The structures of 1-4 were determined through 1D and 2D NMR spectroscopic data analysis, HRMS, and acid hydrolysis. This is the first report of iridoid glycosides
Ki Hyun, Kim, Yong Joo, Park, Kyu Hyuck, Chung, M L Richard, Yip, Jon, Clardy, Donald, Senger, Shugeng, Cao   +6 more
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ChemInform Abstract: IRIDOIDS. VIII. STEREOSELECTIVE SYNTHESIS OF IRIDOID GLYCOSIDES

Chemischer Informationsdienst, 1977
AbstractSynthesen und Spaltreaktionen an Iridoidglykosiden sowie entsprechenden Aglykonen (I)‐(III) werden diskutiert.
L. F. TIETZE, U. NIEMEYER, P. MARX
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THE OCCURRENCE OF IRIDOID GLYCOSIDES IN THE VERBENACEAE*

Acta Botanica Neerlandica, 1975
SUMMARY Many Verbenaceae contain one or more iridoid glycosides, several of which are still unidentified. Some of the latter were characterized by their specific optical rotations and Rf-values on paper chromatograms. Iridoid glycosides were found in the tribes Viticeae and Clerodendreae (Viticoideae), Physopsideae (Chloanthoideae), Citharexyleae ...
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Iridoid and megastigmane glycosides from Phlomis aurea

Phytochemistry, 2000
From the leaves of Phlomis aurea, two new iridoids of unique structures named 3-epiphlomurin (1) and phlomurin (2), a new megastigmane glucoside phlomuroside (3) and a new benzyl alcohol glycoside having the structure benzyl alcohol-O-beta-xylopyranosyl-(1-->2)-beta-glucopyranoside (4) have been isolated together with four known iridoids auroside ...
M S, Kamel, K M, Mohamed, H A, Hassanean, K, Ohtani, R, Kasai, K, Yamasaki   +5 more
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Iridoid and phenolic glycosides from Morinda coreia

Phytochemistry, 2002
From the leaves and branches of Morinda coreia, six compounds [yopaaosides A-C, 10-O-acetylmonotropein, 6-O-acetylscandoside and 3,4,5-trimethoxyphenyl 1-O-beta-apiofuranosyl (1"-->6')-beta-glucopyranoside] have been isolated together with five known compounds. Structural elucidations were based on analyses of physical and spectroscopic data.
Tripetch, Kanchanapoom, Ryoji, Kasai, Kazuo, Yamasaki   +2 more
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