Results 161 to 170 of about 1,539 (210)

ChemInform Abstract: SYNTH. VON POLYGODIAL

Chemischer Informationsdienst. Organische Chemie, 1971
AbstractIm Zusammenhang mit der Synthese des aus Polygonum hydropiper isolierten Polygodials (VIII) werden aus Monocyclofamesinsäure (I) die angegebenen Reaktionsprodukte hergestellt.
T. KATO, T. SUZUKI, M. TANEMURA, A. S. KUMANIRENG, N. OTOTANI, Y. KITAHARA   +5 more
openaire   +1 more source

Synthesis of cinnamolide and polygodial

Journal of the Chemical Society, Chemical Communications, 1981
Starting from 2,6,6-trimethyl-1-vinylcyclohex-1-ene a short synthesis of the sesquiterpenes cinnamolide and polygodial has been achieved with 60% and 57% overall yields, respectively.
S. Christopher Howell, Steven V. Ley, Michael Mahon, Paul A. Worthington   +3 more
openaire   +1 more source

An Alternative Partial Synthesis of (-)-Polygodial

Synthetic Communications, 1987
Abstract A four steps partial synthesis of (-)-polygodial (1) has been achieved, using (-)-drimenol (2) as starting material.
Iván Razmilic, José López, Jorge Sierra   +2 more
openaire   +1 more source

Synthesis of all possible stereoisomers of polygodial

Tetrahedron Letters, 1984
Abstract The three possible isomers of polygodial, epimers at C-9, cis and trans fused, are described. Controlled kinetic and thermodynamic epimerizations allow preparation of all stereoisomers from the same key intermediate.
D. Guillerm, M. Delarue, M. Jalali-Naini, P. Lemaître, J.-Y. Lallemand   +4 more
openaire   +1 more source

Efficient total syntheses of polygodial and drimenin.

Tetrahedron Letters, 1981
Abstract A short and stereoselective total synthesis of (±) polygodial and drimenin is presented. The efficiency of the synthesis is due to the easy access to intermediate diol 4 and its successful direct oxidation into polygodial.
M. Jallali-Naini, G. Boussac, P. Lemaitre, M. Larcheveque, D. Guillerm, J-Y Lallemand   +5 more
openaire   +1 more source

Antibacterial agents to control of pathogenic Xanthomonas arboricola pv. juglandis on walnut fruits and plants by polygodial derivatives formulations

Pest Management Science
Walnut bacterial blight, caused by Xanthomonas arboricola pv. juglandis (Xaj), leads to significant yield losses in walnut production, which is a key agricultural sector in Chile.
A. Madrid, Guillermo Bravo, Diyanira Castillo-Novales, Valentina Navarrete Molina, Aldo Salinas, X. Besoain, Joan Villena, Luis Espinoza-Catalán, Katy Díaz, A. Olea, M. Valenzuela, H. Bustamante, Mauricio A Cuellar, I. Montenegro   +13 more
semanticscholar   +1 more source

Assessment of Mechanisms Involved in Antinociception Caused by Sesquiterpene Polygodial

The Journal of Pharmacology and Experimental Therapeutics, 2000
Polygodial, a sesquiterpene isolated from the bark of Drymis winteri given systemically, intraplantarly, or by spinal or supraspinal sites, produced antinociception when assessed in both phases of the formalin test and against capsaicin-induced pain. Polygodial, even at high doses, had no antinociceptive or antihyperalgesic effect when assessed in hot ...
G L, Mendes, A R, Santos, A, Malheiros, V C, Filho, R A, Yunes, J B, Calixto   +5 more
openaire   +2 more sources

ChemInform Abstract: SYNTHESIS OF CINNAMOLIDE AND POLYGODIAL

Chemischer Informationsdienst, 1981
AbstractDas Trimethylvinylcyclohexen (I) reagiert mit dem Acetylen (II) zum Cycloaddukt (III), das in Gegenwart von Spuren Salzsäure zum Monoen (IV) hydriert wird.
S. C. HOWELL, S. V. LEY, M. MAHON, P. A. WORTHINGTON   +3 more
openaire   +1 more source

Characterization of Sesquiterpene Polygodial-Beta Cyclodextrin Inclusion Complex

Journal of inclusion phenomena and macrocyclic chemistry, 2003
Polygodial is a sesquiterpene drimane isolated from the genus Drimys, whichexhibits anti-asthmatic, anti-allergic, anti-inflammatory and antinociceptive effects.We have prepared a polygodial-β-cyclodextrin inclusion complex for furtherpharmacological studies.
Tiago A.S. Brandão, Angela Malheiros, Jacir Dal Magro, Valdir Cechinel Filho, Rosendo A. Yunes   +4 more
openaire   +1 more source

Plant nutrition, growth and polygodial production of Tasmannia lanceolata

Acta Horticulturae, 2016
Rapid growth of some native Australian plant species can be achieved by targeted applications of selected nutrients. The aim of this study was to examine the influence of nutrient levels on early establishment of Tasmannia lanceolata (Winteraceae) for potential plantation production of polygodial extract from leaves.
M. Wilson, R. C. Menary, D. Close
semanticscholar   +2 more sources