Results 211 to 220 of about 25,452 (252)

Efficient Synthesis of Flavanone Glucuronides

Journal of Agricultural and Food Chemistry, 2009
The first efficient synthesis of flavanone glucuronides as potential human metabolites is described. The synthetic strategy is based on acetyl protection, followed by a combination of chemical and enzymatic deprotection steps. As an example, the method is applied to a synthesis of 7,4'-di-O-methyleriodictyol 3'-O-beta-d-glucuronide.
Ahcene, Boumendjel, Madeleine, Blanc, Gary, Williamson, Denis, Barron   +3 more
openaire   +2 more sources

The biliary excretion of flavanones in the rat

Xenobiotica, 1979
1. The major biliary metabolites of flavanones in the rat have been identified by chromatographic and spectral methods. 2. Evidence is presented that flavanones and flavanone glycosides, following oral or parenteral administration, undergo glucuronylation and are selectively excreted via the bile. 3.
A M, Hackett, I, Marsh, A, Barrow, L A, Griffiths   +3 more
openaire   +2 more sources

Microbiological Transformation of (±)-Flavanone and (±)-Isoflavanone

Journal of Natural Products, 1990
The microbiological transformation of flavanone and isoflavanone was explored using a group of 80 microorganisms in the initial screening. Ten metabolites of flavanone were isolated and identified as 4'-hydroxyflavanone [3], 3',4'-dihydroxyflavanone [4], 3-hydroxyflavone [2], flavone [5], 2'-hydroxydihydrochalcone [7], 2',4-dihydroxydihydrochalcone [6],
A R, Ibrahim, Y J, Abul-Hajj
openaire   +2 more sources

Chemical Synthesis of Citrus Flavanone Glucuronides

Journal of Agricultural and Food Chemistry, 2010
Flavanone glucuronides are the major phenolic metabolites detected in human plasma after consumption of citrus fruits. As such, they might display significant cardioprotective effects. In this work, glucuronides of naringenin (4'- and 7-O-beta-d-glucuronides) and hesperetin (3'- and 7-O-beta-d-glucuronides), the major flavanone aglycones in grapefruit ...
Khan, Muhammad, Rakotomanomana, Njara, Loonis, Michele, Dangles, Olivier   +3 more
openaire   +4 more sources

Flavanones and Dihydroflavonols

1975
This chapter is concerned with the closely related flavanones and dihydroflavonols. Flavanones are based upon structure (1), 2-phenylbenzopyran-4-one, which is flavanone itself. The parent compound is not known to be naturally occurring; the simplest plant flavanone has a hydroxy 1 group at position 7.
openaire   +1 more source

Flavanones fromTephrosia leiocarpa

Phytochemistry, 1991
Abstract Roots and aereal parts of Tephrosia leiocarpa afforded two new flavanones, 5-hydroxy-7-methoxy-8-(3-hydroxy-3-methyl- trans -but-1-enyl)flavanone and 5-hydroxy-7-methoxy-8-(3-methyl- trans -but-1,3-dienyl)flavanone, named tephroleocarpin A and B, respectively.
Federico Go´mez-Garibay, Leovigildo Quijano, Tirso Rios   +2 more
openaire   +1 more source

Flavanones ofTanacetum sibiricum

Chemistry of Natural Compounds, 1981
Six flavanones have been isolated for the first time from Siberian tansy, and two of them have proved to be new compounds.
T. A. Stepanova, V. I. Sheichenko, L. P. Smirnova, V. I. Glyzin   +3 more
openaire   +1 more source

The reaction of flavanone with hydrazine

Tetrahedron, 1965
Abstract The interaction of flavanone and hydrazine hydrate can be directed to yield flavanone hydrazone, 3-(o-hydroxyphenyl) 5-phenylpyrazoline, or flavanone azine as the main product. The structures of these compounds have been proved by hydrolysis, acetylation, and other simple reactions.
F. Kálly, G. Janzsó, I. Koczor
openaire   +1 more source

Flavanones

2023
Daniel-Ioan Hădărugă, Nicoleta-Gabriela Hădărugă   +1 more
openaire   +1 more source

Flavanones and Related Compounds. I. The Preparation of Polyhydroxychalcones and -Flavanones

Journal of the American Chemical Society, 1946
T A, GEISSMAN, R O, CLINTON
openaire   +2 more sources