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Vulpinic acid

When Knight and Pattenden7 wanted to make a group of natural products from lichens, including vulpinic acid used by Eskimos to poison wolves, they needed the ketoacid 30 and... [Pg.169]

We used a leaf disk bioassay adapted from Rowland et al.35 to test the insecticidal activity of lichen secondary products on B. tabaci. Two lichen secondary compounds, (-)-usnic acid and vulpinic acid, showed significant results when compared to the controls. Vulpinic acid had an average mortality of 18%, and (-)-usnic acid had an average mortality of 14%. From the dose response of (-)-usnic acid, LD50 was not reached at 1000pM, but a positive correlation was established with increasing concentration and whitefly population response (data not shown). [Pg.38]

Lauterwein, M., Oethinger, M., Belsner, K., Peters, T., and Marre, R., 1995. In vitro activities of the lichen secondary metabolites vulpinic acid, (+)-usnic acid and (-)-usnic acid against aerobic and anaerobic microorganisms. Antimicrob. Agents Chemo. 39, 2541-2543. [Pg.45]

Slansky, F., 1979. Effect of lichen chemicals atranorin and vulpinic acid upon feeding and growth of larvae of the yellow-striped armyworm, Spodoptera ornithogalli. Env. Entomol. 8, 865-868. [Pg.46]

Vulpinic acid (phenolic) Letharia vulpina (lichen) Uncoupler (<5)... [Pg.567]

A further family of aromatic compounds produced by lichens is derived from shikimic add via phenylalanine and is exemplified by vulpinic acid (7.55), which was isolated from Letharia vulpina. Vulpinic acid has been synthesized by the lead tetra-acetate oxidation of polyporic acid. Lichens also produce some alkylated citric acid derivatives such as lichesterinic acid (7.56) and some sterols. [Pg.141]

Agarwal, S.C., and T.R. Seshadri Application of Ozonolysis to the Study of Substituted Derivatives of Vulpinic Acid. Constitution of Pinastric and Isopinastric Acids. Tetrahedron 19, 1965 (1963). [Pg.254]

Hecht, H.-J., R. Reinhardt, and W. Steglich Structure Analysis of the Lichen Pigment Vulpinic Acid. Submitted for publication. [Pg.269]

Mosbach, K. On the Biosynthesis of Lichen Substances 2. The Pulvinic Acid Derivative Vulpinic Acid. Biochem. Biophys. Res. Commun. 17, 363 (1964). [Pg.275]

Particularly good colour differentiation is obtained with the anisaldehyde-sulphuric acid reagent (No. 11). The following hJ /-values and colours have been obtained under the conditions mentioned above vulpinic acid, hBf 80, yellow usnic acid, 65, violet evemic acid, 11, red and the decomposition product orcinol, 3, red. Further details about lichen constituents are given by Ntjno [159] and Ramaut [174]. [Pg.695]

The lichen substances first known in their structure were vulpinic acid (Spiegel 1883) and... [Pg.2]

Other Activities. Picrolichenic acid was successfully used against intermittent fever (Alms 1832 Zopf 1907). Pulvinic acid dilactone has a pronounced cardiotonic activity (Nador et al. 1954), secalonic acid A has a phlogistic activity (Harada et al. 1974) and vulpinic acid an antiinflammatory activity (Foden et al. 1975). Usnic and diffractaic acids have analgesic and antipyretic activities comparable to amino-phenazone, phenylbutazone and hydrocortisone hemisuccinate (Dobrescu et al. 1993 Okuyama et al. 1995). [Pg.5]

Deriv Vulpinic acid, yellow prisms (EtOH), mp... [Pg.402]

Focella A, Teitel S, Brossi A (1977) A simple and practical synthesis of olivetol. J Org Chem 42 3456-3457 Foden FR, McCormick J, O Mant DM (1975) Vulpinic acids as potential antiinflammatory agents. 1. Vulpinic acids with substituents in the aromatic rings. J Med Chem 18 199-203... [Pg.457]

Stephenson NL, Rundel PW (1979) Quantitative variation and the ecological role of vulpinic acid and atranorin in the thallus of Letharia vulpina, Biochem Syst Ecol 7 263-267... [Pg.471]

Weinstock J, Blank JE, Oh H-J, Sutton BM (1979) A regiospecific synthesis of substituted vulpinic acids. J Org Chem 44 673-676... [Pg.472]

SCHONBERG, A., and A. Sina Molecular Rearrangements. Part V. A Case of a Thermal Reversible a-Diketone-y-Lactone Rearrangement. Some Experiments with Vulpinic Acid and Related Compounds. J. Chem. Soc. (London) 601 (1946). [Pg.193]

SoDERBERG, U. Action of Vulpinic Acid. Acta. Physiol. Scand. 11 y 97 (1952). [Pg.198]

Foden, F. R., j. McCormick, and D. M. O Mant Vulpinic Acids as Potential Antiinflammatory Agents. 1. Vulpinic Acids with Substituents in the Aromatic Rings. J. Medic. Chem. 18, 199 (1975). [Pg.198]

Only two terphenylquinones, polyporic acid and thelephoric acid, are known, while pulvinic acid derivates are more numerous (calycin, epanorin, leprapinic acid, leprapinic acid methyl ether, pinastric acid, pulvinic acid, pulvinic dUactone, rhizocarpic acid, stictaurin, vulpinic acid). [Pg.15]

Vulpinic acid Antimicrobial, anticancer Lauterwein et al. (1995), Burlando et al. (2009)... [Pg.19]


See other pages where Vulpinic acid is mentioned: [Pg.27]    [Pg.277]    [Pg.486]    [Pg.36]    [Pg.40]    [Pg.41]    [Pg.265]    [Pg.285]    [Pg.687]    [Pg.2]    [Pg.5]    [Pg.32]    [Pg.51]    [Pg.107]    [Pg.115]    [Pg.403]    [Pg.403]    [Pg.450]    [Pg.145]    [Pg.177]    [Pg.177]    [Pg.189]    [Pg.196]   
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