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Olivetoric acid

A solution of barium hydroxyde [Ba(OH)2] in water gives a blue colour with diploschistesic acid, and a saturated solution of barium peroxide (BaOj) in water with olivetoric acid gives a lemon yellow colour, turning to green after some minutes. [Pg.13]

Deriv Methyl olivetorate, needles (MeOH), mp 134°C, from olivetoric acid with CHjNj in EtjO at 0 °C in 30 s... [Pg.290]

Elix JA, Ferguson BA (1978) Synthesis of the lichen depsides, olivetoric acid, confluentic acid and 4-0-methylolivetoric acid. Aust J Chem 31 1041-1045 Elix JA, Gaul KL (1986) The interconversion of the lichen depsides para- and metascrobiculin, and the biosynthetic implications. Aust J Chem 39 613-624 Elix JA, Jayanthi VK (1977) 5-0-Methylhiascic acid, a new tridepside from Australian lichens. Aust J Chem 30 2695-2704... [Pg.454]

Turk AO, Yilmaz M, Kivanc M et al (2003) The antimicrobial activity of extracts of the lichen Cetraria aculeata and its protolichesterinic acid constituent. Z Naturforsch 58 850-854 Turk H, Yilmaz M, Tay T et al (2006) Antimicrobial activity of extracts of chemical races of the lichen Pseudevernia furfuracea and their physodic acid, chloroatranorin, atranorin, and olivetoric acid constituents. Z Naturforsch C 61 499-507 Verma N, Behera BC, Parizadeh H et al (2011) Bactericidal activity of some lichen secondary compounds of Cladonia ochrochlora, Parmotrema nilgherrensis aadParmotrema sancti-angelii. Int J Drug Dev Res 3 222-232... [Pg.26]

Olivetoric acid Pseudeverniafurfuracea) Rat adipose tissue endothelial cells Koparal et al. (2010)... [Pg.132]

Koparal AT, Ulus G, Zeytinoglu M et al (2010) Angiogenesis inhibition by a lichen compound olivetoric acid. Phytother Res 24 754—758... [Pg.143]

The biogenesis of depsidones was first explained 12, 135) by the attractive theory that they arose from intramolecular phenolic oxidative coupling of / ara-depsides, and although at least nine / flfm-depside-depsidone pairs of corresponding structures exist they usually occur in widely separated lichen genera. However in several lichens 62, 63) the pair olivetoric acid (294) and physodic acid (295) actually co-occur. [Pg.168]

Synthesis of the Lichen Depsides, Olivetoric Acid, Confluence Acid and 4-0-... [Pg.224]

Fig. 4. Structural relationships and possible formation of the five types of condensation products of orsellinic acid (6) or its homologues taking place in lichens. (9a) = olivetoric acid, (9b) = dihydropicrolichenic acid, (10) = physodic acid, (11) = picrolichenic acid, (12) = pannaric acid, (13) = pyxiferin. Fig. 4. Structural relationships and possible formation of the five types of condensation products of orsellinic acid (6) or its homologues taking place in lichens. (9a) = olivetoric acid, (9b) = dihydropicrolichenic acid, (10) = physodic acid, (11) = picrolichenic acid, (12) = pannaric acid, (13) = pyxiferin.
It would appear that the many higher orsellinic acid homologues such as olivetoric acid (9a) are derived from a single acetate-polymalonate chain in analogy with the fungal Qo acid (6-acetonyl-2,4,-dihydroxybenzoic acid) (Manchanda and Stickings, 1963). A condensation of a separately formed alkanoyl-SCoA unit with orsellinic acid appears less likely. [Pg.531]

Lecanoinic acid Spherophorin Anziaic acid Perlatoric acid Evernic acid Divaricatic acid Gyrophoric acid Umbilicaric acid Olivetoric acid SekikaiC acid Ramalinoric acid Boninic acid... [Pg.557]

PD-,K-,C+ red Anziaic acid, 4-(9-demethylbarbatic acid, erythrin, ethyl orsellinate, gyrophoric acid, lecanoric acid, methyl 3,5-dichlorolecanorate, methyl- -orsellinate, montagnetol, olivetoric acid, siphulin... [Pg.634]

Pseudevemia Of 728 analysed specimens of Pseudevemia futfuracea from Norway 49% contained olivetoric acid, 50% physodic and hydroxyphysodic adds and 1% olivetoric and physodic adds (342)... [Pg.223]

See other pages where Olivetoric acid is mentioned: [Pg.14]    [Pg.17]    [Pg.43]    [Pg.49]    [Pg.71]    [Pg.115]    [Pg.290]    [Pg.10]    [Pg.104]    [Pg.136]    [Pg.104]    [Pg.154]    [Pg.155]    [Pg.155]    [Pg.155]    [Pg.162]    [Pg.216]    [Pg.531]   
See also in sourсe #XX -- [ Pg.290 ]

See also in sourсe #XX -- [ Pg.154 , Pg.155 , Pg.168 , Pg.216 ]

See also in sourсe #XX -- [ Pg.223 ]



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