Results 181 to 190 of about 31,846 (218)

Stereoselective deprotonation installs an unusual <i>Z</i>-8,9 double bond during biosynthesis of the diterpene pheromone sobralene.

Chem Commun (Camb)
Da Silva IFP, Ducker C, Pickett JA, Santana AEG, Oldham NJ.   +4 more
europepmc   +1 more source

Crotofolane Diterpenoids: Structural Diversity, Natural Sources, and Therapeutic Potential.

J Pharm Bioallied Sci
Mohamed HM, Mohamed GA, Ibrahim SRM.
europepmc   +1 more source

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DITERPENES AND DITERPENE ESTERS IN COFFEE

Food Reviews International, 2001
Coffee oil contains pentacyclic diterpenes as typical lipid constituents which have not been detected in any other foods. Major representatives are 16-O-methylcafestol, cafestol, and kahweol. Cafestol is contained in Arabica as well as in Robusta coffee. 16-O-Methylcafestol is found only in Robusta coffee.
T. Kurzrock, K. Speer
openaire   +1 more source

Marine diterpene glycosides

Bioorganic & Medicinal Chemistry, 2011
Marine diterpene glycosides (MDGs) respresent a small but highly significant group of the much larger class of marine diterpenes. The three well-studied examples of MDGs are eleutherobins, pseudopterosins and fuscosides, all of which exhibit extremely promising biological activity.
Fabrice, Berrué, Malcolm W B, McCulloch, Russell G, Kerr   +2 more
openaire   +2 more sources

Cembranoid diterpenes and a briarane diterpene from corals

Natural Product Research, 2006
Two new cembrane diterpenes (+)-polydactylide (1) and (+)-7alpha,8beta-dihydroxydeepoxysarcophine (2) together with (+)-sarcophine (3) and (+)-sarcophytoxide (4) have been isolated from the soft coral Sinularia polydactyla. The new cembrane diterpene (-)-7beta-hydroxy-8alpha-methoxydeepoxysarcophine (5) has been obtained from the soft coral Sarcophyton
Daniela, Grote, Hesham S M, Soliman, Kamel H, Shaker, Mohamed, Hamza, Karlheinz, Seifert   +4 more
openaire   +2 more sources

Diterpene and diterpene glycosides from Rabdosia eriocalyx

Phytochemistry, 1989
Abstract An ent -kaurene diterpenoid, maoecrystal K, and its β-glucopyranoside, rabdoside 1, as well as a minor diterpene glycoside, rabdoside 2 were isolated from Rabdosia eriocalyx . The structures of the three compounds were determined by their spectral properties and chemical transformations.
Akira Isogai, Xiaoyu Shen, Kazuo Furihata, Hidetoshi Kaniwa, Handong Sun, Akinori Suzuki   +5 more
openaire   +1 more source

Diterpenes and diterpene xylosides from Conyza trihecatactis

Phytochemistry, 1993
Abstract From the leaves of Conyza trihecatactis we have isolated the labdane-type diterpenes and diterpene xylosides ent-sclareol, ent-3β-hydroxymanool, ent-manool 13-O-β- d -xylopyranoside and ent-sclareol 13-O-β- d -xylopyranoside. Structure elucidation was achieved by spectroscopic methods.
Ruben Torrenegra, Jorge Robles, Reiner Waibel, Matthias Löwel, Hans Achenbach   +4 more
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Bacterial Diterpene Biosynthesis

Angewandte Chemie International Edition, 2019
AbstractThis Minireview summarises recent developments in the biosynthesis of diterpenes by diterpene synthases in bacteria. It is structured by the class of enzyme involved in the first committed step towards diterpenes, starting with type I diterpene synthases, followed by type II enzymes and the more recently discovered UbiA‐related diterpene ...
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Diterpenes from Grangea maderaspatana

Phytochemistry, 2016
Phytochemical investigation of the ethanolic extract of Grangea maderaspatana led to isolation of gramaderins A-D, together with thirteen known compounds. All isolates were assayed for their anti-inflammatory activities. Consequently, 5,7-dihydroxy-3,6,3',4',5'-pentamethoxyflavone and 5,3'-dihydroxy-3,6,7,4',5'-pentamethoxyflavone showed significant ...
Fang-Rong, Chang, Shih-Ting, Huang, Chih-Chuang, Liaw, Ming-Hong, Yen, Tsong-Long, Hwang, Ching-Yeu, Chen, Ming-Feng, Hou, Shyng-Shiou, Yuan, Yuan-Bin, Cheng, Yang-Chang, Wu   +9 more
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Diterpenes from Solidago rugosa

Phytochemistry, 1995
Investigation of the roots and aerial parts of Solidago rugosa afforded the known diterpenes kolavenol, hardwickiic acid, (-)-kaur-16-en-19-oic acid, (+)-manool, (+)-3 beta-hydroxymanool, manoyl oxide and ent-abietic acid. In addition, the new labdane diterpene (+)-18-tigloyloxymanool and four new ent-abietanes were obtained.
T, Lu, D, Vargas, S G, Franzblau, N H, Fischer   +3 more
openaire   +2 more sources