Naphthopyranone glycosides
WitrynaNaphthopyranone glycosides from Paepalanthus bromelioides more. by Sonia Piacente and Paulo Takeo Sano. Two new naphtho[2,3C]pyran-1-one glycosides, paepalantine-9-O-β-d-glucopyranoside and paepalantine-9-O-β-d-allopyranosyl(1 → 6)glucopyranoside, were isolated from an ethanolic extract of capitula from … WitrynaThree new naphthopyranone glycosides, paepalantine-9-O-β-d-glucopyranosyl-(1→6)-β-d-glucopyranoside (1), paepalantine-9-O-α-l-arabinopyranosyl-(1→6)-β-d …
Naphthopyranone glycosides
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Witryna1 maj 2001 · Three new naphthopyranone glycosides, paepalantine-9-O-beta -D-glucopyranosyl- (1 -->6)-beta -D-glucopyranoside (I), paepalantine-9-O-alpha -L … Witryna3 wrz 1998 · Two new naphtho[2,3C]pyran-1-one glycosides, paepalantine-9-O-β-d-glucopyranoside and paepalantine-9-O-β-d-allopyranosyl(1 → 6)glucopyranoside, were isolated from an ethanolic extract of capitula from Paepalanthus bromelioides and identified from their spectrometric data.
Witryna1 maj 2001 · Among the investigated species, those belonging to Paepalanthus genus are known for the production naphthopyranone and flavonoid glycosides (Vilegas et al., 1998;Vilegas et al., 1999a,b; ... Witryna27 kwi 2001 · This technique led to the separation of four different naphthopyranone glycosides in pure form in only 7 h. Introduction. The fractionation of polar extracts from plant origin are often a difficult task. The separation and purification of secondary metabolites using the conventional methods such column chromatography and high …
WitrynaThe solvent system used was composed of water-ethanol-ethyl acetate-hexane (10:4:10:4, v/v/v/v). This technique led to the separation of the three different naphthopyranone glycosides in pure form in approximately 7 hours. Paepalantine showed a good antioxidant activity when assayed by the DPPH radical … Witryna1 sie 2006 · A compilation of the pregnane glycosides isolated from 1995 until the middle of 2005, along with their physical data, structures and occurrence are presented in this review, which also summarizes, with suitable examples, recent developments in isolation and purification techniques, and structural elucidation using modern …
Witrynathe quintessential structure of the naphthopyranone group of compounds and itself displays antimicrobial activity. 7 A series of glycosides of toralactone 1 are known, including the 9-O-glucoside 2 that has been obtained from Eriocaulon buergerianum,9 …
Witryna3 wrz 1998 · Naphthopyranones and their glycosides have hitherto been isolated from the capitula of P. bromelioides. Preliminary investigation showed that they … is advance auto parts open tomorrowWitryna1 wrz 2004 · Two new naphtho[2,3C]pyran-1-one glycosides, paepalantine-9-O-β-d-glucopyranoside and paepalantine-9-O-β-d-allopyranosyl(1 → 6)glucopyranoside, were isolated from an ethanolic extract of ... is advance auto parts open todayWitryna2 cze 2014 · Volume 57, issue 11-12 of the journal Zeitschrift für Naturforschung C was published in 2002. old treasure island sign las vegasWitrynaThe solvent system used was composed of water-ethanol-ethyl acetate-hexane (10:4:10:4, v/v/v/v). This technique led to the separation of the three different … old treasures 333 ebayWitryna8 kwi 2024 · (organic chemistry) Any of a class of compounds having a structure consisting of a pyrone ring fused to that of naphthalene old treasure ship crosswordWitryna26 maj 2024 · Naphthopyrone glycosides have been reported to be the major antihepatotoxic principles in the seeds of C. tora and anthraquinone glycosides … is advanced algebra hardWitryna1 mar 2002 · The new naphthopyranone (10, 16), quercetagetin (1, 5, 7, 13), and galetine derivatives (9, 11, 17, 19), and a flavonol glucoside cyclodimer in the … old treasure island