7 resultat
Diphyllin isolated from Haplophyllum bucharicum Litv. (Rutaceae), an endemic plant of Uzbekistan, displayed a moderate antiproliferative activity towards human monocytes (IC50 = 35.2 microM) and Leishmania promastigotes (IC50 = 14.4 microM), by a mechanism of action that involved interaction with
The topical anti-inflammatory activity of Haplophyllum hispanicum Spach is due to the presence of arylnaphthalene-type lignans acting as 5-lipoxygenase (5-LOX) inhibitors. The effects of the methanolic extract of this species on cellular systems have been determined by HPLC-DAD analysis. Diphyllin
The present study focuses on eudesmin (bicyclic lignan, 0.15 % of dry leaves) and diphyllin (arylnaphthalene lignan, 0.1 % of dry roots), both isolated from H. perforatum Kar. et Kir, a Rutaceae species endemic to Uzbekistan. We first compared their specificity for cancer cells with those of
Haplophyllum buxbaumii has yielded a new diphyllin glycoside, which was characterized as 4-O-{bis-alpha-L-xylopyranosyl (1-->2, 1-->5) beta-D-apiofuranosyloxy}-6,7-dimethoxy-1-(3,4-methylenedioxyphenyl)-3-hydroxymethyl naphthalene-2-carboxylic acid lactone. Taiwanin-H is also reported for the first
A new arylnaphthalene lignan glycoside, patavine (1), together with five known lignans, justicidin B (2), diphyllin (3), tuberculatin (4), majidine (5), and arabelline (6) were isolated from shoot cultures of Haplophyllum patavinum. The structure of the new compound was elucidated by extensive
Two new alkaloids, haplotubinone (3) and haplotubine (4), were isolated from the aerial parts of Haplophyllum tuberculatum together with the known lignan diphyllin. The structures of the new alkaloids were established by spectroscopic methods in conjunction with X-ray crystallographic analysis of 3.
The present paper reports the results of the methanol extract of Haplophyllum hispanicum Spach on single or repeated local 12-O-tetradecanoylphorbol acetate (TPA) administration and in the oxazolone-induced contact-delayed hypersensitivity mouse ear edemas. Two topical anti-inflammatory aryl