Results 91 to 100 of about 796 (189)

Acetylcholinesterase Inhibition Activity of a Mixture of Methylated Depsidones from the Lichen Lobaria pulmonaria

, 2012
A phytochemical investigation conducted on a folise lichen, Lobaria pulmonaria (L.) Hoffm. (Lobariaceae), from Bosnia and Herzegovina led to a mixture of methylated depsidones which showed acetylcholinesterase inhibition activity (2 mu g) in the ...
Vajs, Vlatka, Tommonaro, G., Tommonaro, Giuseppina, Pejin, Boris, Vajs, Vlatka E, Iodice, Carmine, Tešević, Vele   +6 more
core  

A New Depsidone from Aspergillus nidulans. [PDF]

Acta Chemica Scandinavica, 1972
Julian Sierankiewicz, Sten Gatenbeck, Lars-Erik Johansson, Curt R. Enzell, Sigfrid Svensson, M. Sundbom   +5 more
openaire   +2 more sources

2'-O-Methylphysodic acid and hydroxyphysodic acid: two new depsidones from the lichen Hypogymnia billardieri

, 1975
Two new depsidones, 2?-O-methylphysodic acid and hydroxyphysodic acid, have been identified as minor constituents of the lichen Hypogymnia billardieri (Mont.) R. Filson.
JA Elix
core   +1 more source

The Synthesis of Depsidones. I

YAKUGAKU ZASSHI, 1963
F, FUJIKAWA, K, HIRAI, N, ISHIKAWA, A, MAKI   +3 more
openaire   +3 more sources

New Chlorine-Containing Depsidones From the Lichen Phyllopsora corallina var. ochroxantha

, 1990
The depsidones phyllopsorin (2-chloro-4,6-diformyl-3-hydroxy-8-methoxy- 1,9-dimethyl-11H-dibenzo[ b,e ][1,4]dioxepin-11-one (3), chlorophyllopsorin (2,7-dichloro-4,6-diformyl-3-hydroxy-8-methoxy-1,9- dimethyl-11H-dibenzo[ b,e ][1,4]dioxepin-11-one) (4),
JA Elix, DA Venables, L Brako
core   +1 more source

The chemistry of Pseudocyphellaria impressa S. Lat. in New Zealand

, 1979
As part of a detailed study of the nomenclature and taxonomy of the New Zealand species of Pseudocyphellaria it has been noted that the chemistry of the P. impressa (Hook & Taylor) Vainio aggregate, that is species with a markedly faveolate (honeycomb-
A. L. Wilkins, P. W. James, Wilkins, Alistair L., James, P.W.   +3 more
core   +1 more source

The role of lichenized algae in the production of Cladonia verticillaris depsidones, revealed by using alginate-immobilized cells

, 2015
The mycobiont of the lichen Cladonia verticillaris produces two depsidones, protocetraric and fumarprotocetraric acids, in the nature. This last compound is produced from the former depsidone.
Vicente Córdoba, Carlos, Legaz González, María Estrella, Díaz, Eva María, Davó, Nuria   +3 more
core  

Further nomenclature and chemical notes on Pseudocyphellaria in New Zealand

, 1983
Nomenclatural notes on the following taxa are provided: Pseudocyphellaria billardierii, P. carpoloma, P. faveolata, P. rufovirescens and P. subvariabilis. Detailed chemical profiles are given for all described species of Pseudocyphellaria in New Zealand.
Galloway, D.J., Wilkins, Alistair L., James, P.W.   +2 more
core   +1 more source

Oxidation reactions are required to produce atranorin from acetate by alginate-immobilized cells of Cladonia verticillaris.

, 2000
Atranorin, a p-depside of the b-orcinol series, is produced by several Cladonia species. Immobilized cells of Cladonia verticillaris in calcium alginate are able to produce atranorin when they are supplied with 1.0 mM acetate as a precursor.
Fontaniella, B., Pereira, E.C., Vicente, C., Sebastián, B.   +3 more
core  

Depsidone synthesis. X. Methoxy- and Hydroxy-colensoic acids

, 1977
The synthesis of the lichen depsidones 8-hydroxy-3,4-dimethoxy-11-oxo- 1,6-dipenty1-11H-di-benzo[b,e][1,4]dioxepin-7-carboxylic acid (methoxycolensoic acid) (1) and 4,8-dihydroxy-3-methoxy-11-oxo-1,6- dipentyl-11H-dibenzo[b,e][1,4]dioxepin-7-carboxylic ...
P Djura, PD Clark, MV Sargent
core   +1 more source