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Methyl lecanorate

Finally aphthosin (278), an orcinol tetradepside was obtained through condensing evernic acid (279) and methyl lecanorate (280) (Scheme 36) (57). The properties of this synthetic material were identical with those of the natural product isolated by Bachelor and King 10), although a reinvestigation of the constituents of Peltigera aphthosa failed to verify the natural occurrence of this tetradepside 234). [Pg.158]

Methyl lecanorate OH H OH H Me H OH C02Me Me H Pseudocyphellaria crocata Column chromatography Spectral data and synthesis (252)... [Pg.160]

Acetyl CoA 6-Methyl-salicylic acid, acetophenones, lecanoric acid, patulin, coniine, gallic acid (D 3.3.1) Eugenone, citrinin, sepedonin, coumarin derivatives (D 3.3.2) Plumbagin (D 3.3.3) Griseo-fulvin (D 3.3.4) Anthra-quinones, ergochromes (D 3.3.5) Afla-toxins (D 3.3.6)... [Pg.172]

Polyketides of this group are either carbocyclic compounds (like 6-methyl-salicylic acid) hydroxylated acetophenones, or possess an 6-membered (asperlin, coniine) or 7-membered (stipitatonic acid) N- or 0-heterocyclic ring. Often dimeric compounds occur, e.g., lecanoric acid. [Pg.173]

Eveniic Acid Lecanoric etcid methyl ether) CH3 CHa... [Pg.61]

Maass WSG (1975a) The phenolic constituents of Peltigera aphthosa. Phytochemistry 14 2487-2489 Maass WSG (1975b) Lichen substances. V. Methylated derivatives of orsellinic acid, lecanoric acid, and gyrophoric acid from Pseudocyphellaria crocata. Can J Bot 53 1031-1039... [Pg.465]

Jayaprakasha and Rao (2000) extracted with benzene and acetone the lichen Parmotrema stuppeum in order to investigate its antioxidant effect. Both the extracts were fractionated on 1 % oxalic acid impregnated silica gel column to obtain methyl orsenillate, orsellinic acid, atranorin and lecanoric acid, respectively. Antioxidant activities of benzene extract, acetone extract and isolated compounds were evaluated in a carotene-linoleate model system. The obtained results showed that the pure compounds and extracts have moderate antioxidant activity. [Pg.119]

Lichen Substances V. Methylated Derivatives of Orsellinic Acid, Lecanoric Acid and Gyrophoric Acid from Pseudocyphellaria crocata. Can. J. Bot. 53, 1031 (1975). [Pg.229]

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]

Methyl orsellinate (57) Atranorine (78) Orsellinic acid (79) Lecanoric acid (80) Antioxidant Stereocaulon alpinum Laurer, Ramalina terebrata Hook., and Taylor, Caloplaca regaiis (Vain.) Zahibr [104]... [Pg.254]

Methyl orsellinate (57) Lobaric acid (62) Lecanoric acid (80) Sakikaic acid (88)... [Pg.254]

See other pages where Methyl lecanorate is mentioned: [Pg.14]    [Pg.33]    [Pg.115]    [Pg.275]    [Pg.124]    [Pg.9]    [Pg.14]    [Pg.33]    [Pg.115]    [Pg.275]    [Pg.124]    [Pg.9]    [Pg.63]    [Pg.116]    [Pg.118]    [Pg.137]    [Pg.190]    [Pg.147]    [Pg.252]    [Pg.253]   
See also in sourсe #XX -- [ Pg.275 ]

See also in sourсe #XX -- [ Pg.124 , Pg.158 , Pg.160 ]

See also in sourсe #XX -- [ Pg.9 ]



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