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Pharbitic acid

The alkaline hydrolysis of the ether-insoluble resin glycoside fraction from seeds of Ipomoea nil (L.) Roth (syn. Pharbitis nil Choisy) yielded a pentasaccharide of ipurolic acid, which was named pharbitic acid C (tetradecanoic acid, ll-[(0-6-deoxy- S-D-glucopyranosyl-(1 4)-0-6-deoxy-a-L-mannopyranosyl-(l—>6)-0-[6-deoxy-a-L-mannopyranosyl-(l—>2)-0-jS-D-glucopyranosyl-(l—>2)]- S-D-glucopyra-nosyl)oxy]-3-hydroxy). On complete hydrolysis, it produced two o-glucoses, two L-rhamnoses, one o-quinovose, and the aglycone moiety (77). [Pg.110]

Resin Glycosides from the Morning Glory Family Pharbitic Acids B and D... [Pg.117]

Okabe H, Kawasaki T (1972) Studies on Resin Glycosides III. Complete Structures of Pharbitic Acids C and D. Chem Pharm Bull 20 514... [Pg.151]

GA pharbitic acid = mixture of 2 major (pharbitic acids C, D) and two minor constituents (A, B) HFA of C and D ipurolic acid (11-0-oligosaccha-lides) HFA of B ipolearic acid (11-0-oligosaccharide)... [Pg.540]

Fig. 8.2 Motif conserved in altogether 41 monomeric glycoresins belonging to 8 different groups of congeners which were discovered in 9 convolvulaceous species (for details see text structure)-, pharbitic acid C, provided by alkaline hydrolyzation of pharbitin , a resin glycoside mixture from the seeds of Ipomoea nil (for the unusual litrkage of its hydroxy fatty acid to an inner monosaccharide unit see text right structure)... Fig. 8.2 Motif conserved in altogether 41 monomeric glycoresins belonging to 8 different groups of congeners which were discovered in 9 convolvulaceous species (for details see text structure)-, pharbitic acid C, provided by alkaline hydrolyzation of pharbitin , a resin glycoside mixture from the seeds of Ipomoea nil (for the unusual litrkage of its hydroxy fatty acid to an inner monosaccharide unit see text right structure)...
Peroxycamphoric acid, KIO Petasalbine, T23 Petasin, T23 Pharbitic acid. Til ... [Pg.166]

See other pages where Pharbitic acid is mentioned: [Pg.110]    [Pg.117]    [Pg.12]    [Pg.252]    [Pg.252]    [Pg.540]    [Pg.548]    [Pg.550]    [Pg.553]    [Pg.557]    [Pg.579]    [Pg.494]    [Pg.59]    [Pg.231]    [Pg.231]   
See also in sourсe #XX -- [ Pg.110 , Pg.117 ]

See also in sourсe #XX -- [ Pg.540 , Pg.550 , Pg.553 ]



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