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Heterodermia obscurata

Deriv Triacetyl-5,7-dichloroemodin, yellow needles (benzene-n-hexane), mp 218-219 °C, from 5,7-dichloroemodin with AC2O-HCIO4 StL Heterodermia obscurata (Nyl.) Trev. [Pg.171]

Cohen PA, Towers GHN (1995a) Anthraquinones and phenanthroperylenequinones from Nephroma lae-vigatum. J Nat Prod 58 520-526 Cohen PA, Towers GHN (1995b) The anthraquinones of Heterodermia obscurata. Phytochemistry 40 911-915 Comber ME, Sargent MV, Skelton BW, White AH (1989) Depsidone synthesis. Part 24. The synthesis of epiphorellic acid 2. A pseudodepsidone and X-ray crys-... [Pg.451]

Nephroma laevigatum, Heterodermia obscurata Emodin, 7-chloroemodin, 7 -chloro-1 -0-methy lemodin, 5,7-dichloroemodin, 7,7 dichlorohypericin, and hypericin Herpes simplex virus type 1 (HSV-1) Cohen et al. (1996)... [Pg.174]

Cohen PA, Towers GHN (1995b) The anthraquinones of Heterodermia obscurata. Phytochemistry 40 911... [Pg.175]

Choudhary MI, Saima Jalil A and Atta-ur-Rahman (2005) Bioactive phenolic compounds from a medicinal lichen, Usnea longissima. Phytochem 66 2346-2350 Cohen PA, Towers GHN (1995) The anthraquinones of Heterodermia obscurata. Phytochemistry... [Pg.197]

Dichlorohypericin (537) and 2,2, 7,7 -tetrachlorohyperidn (538) are new phenanthroperylenequinones from Nephroma laevigatum and Heterodermia obscurata respectively. Both compounds were synthesized by chlorination of hypericin with A -chlorosuccinimide in dimethylform-amide (73, 74). [Pg.194]

Parmotrema grayana Hue, Heterodermia obscurata (Nyl.) Trevisan, Rocella montagnei Bel. [Pg.254]

See other pages where Heterodermia obscurata is mentioned: [Pg.170]    [Pg.174]    [Pg.175]    [Pg.175]    [Pg.475]    [Pg.169]    [Pg.191]    [Pg.252]    [Pg.170]    [Pg.174]    [Pg.175]    [Pg.175]    [Pg.475]    [Pg.169]    [Pg.191]    [Pg.252]   
See also in sourсe #XX -- [ Pg.194 ]



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