93755-77-2Relevant academic research and scientific papers
Key Phytochemicals Contributing to the Bitter Off-Taste of Oat (Avena sativa L.)
Günther-Jordanland, Kirsten,Dawid, Corinna,Dietz, Maximilian,Hofmann, Thomas
, p. 9639 - 9652 (2017/01/12)
Sensory-directed fractionation of extracts prepared from oat flour (Avena sativa L.) followed by LC-TOF-MS, LC-MS/MS, and 1D/2D-NMR experiments revealed avenanthramides and saponins as the key phytochemicals contributing to the typical astringent and bitter off-taste of oat. Besides avenacosides A and B, two previously unreported bitter-tasting bidesmosidic saponins were identified, namely, 3-(O-α-l-rhamnopyranosyl(1→2)-[β-d-glucopyranosyl(1→3)-β-d-glucopyranosyl(1→4)]-β-d-glucopyranosid)-26-O-β-d-glucopyranosyl-(25R)-furost-5-ene-3β,22,26-triol, and 3-(O-α-l-rhamnopyranosyl(1→2)-[β-d-glucopyranosyl(1→4)]-β-d-glucopyranosid)-26-O-β-d-glucopyranosyl-(25R)-furost-5-ene-3β,22,26-triol. Depending on the chemical structure of the saponins and avenanthramides, sensory studies revealed human orosensory recognition thresholds of these phytochemicals to range between 3 and 170 μmol/L.
FUSED RING ANALOGUES OF ANTI-FIBROTIC AGENTS
-
, (2011/05/06)
The present invention relates to arylcarbonyl and heteroarylcarbonyl anthranilate compounds that may be useful as anti-fibrotic agents. The present invention also relates to methods for their preparation, pharmaceutical compositions containing these compounds and uses of these compounds in the treatment disorders.
COMBINATION THERAPY OF ARTHRITIS WITH TRANILAST
-
, (2010/07/04)
Combination therapy is disclosed herein for the treatment an arthritic condition (e.g. rheumatoid arthritis, osteoarthritis or psoriatic arthritis). The therapies disclosed herein comprise administering tranilast or an analogous compound in combination wi
Evaluation and optimization of antifibrotic activity of cinnamoyl anthranilates
Zammit, Steven C.,Cox, Alison J.,Gow, Renae M.,Zhang, Yuan,Gilbert, Richard E.,Krum, Henry,Kelly, Darren J.,Williams, Spencer J.
supporting information; experimental part, p. 7003 - 7006 (2010/07/08)
Tranilast is an anti-inflammatory drug in use for asthma and atopic dermatitis. In studies over the last decade it has been revealed that tranilast can reduce fibrosis occurring in the kidney during diabetes, thereby delaying and/or preventing kidney dysfunction. We report a structure-activity study aimed at optimizing the antifibrotic activity of tranilast. A series of cinnamoyl anthranilates were prepared and assessed for their ability to prevent TGF-β-stimulated production of collagen in cultured renal mesangial cells. We reveal derivatives with improved potency and reduced cellular toxicity relative to tranilast. 3-Methoxy-4-propargyloxycinnamoyl anthranilate reduces albuminuria in a rat model of progressive diabetes, and thus has potential as an innovative treatment for diabetic nephropathy.
THERAPEUTIC COMPOUNDS
-
Page/Page column 45 - 46, (2008/06/13)
Substituted cinnamoyl anthranilate compounds exhibiting anti-fibrotic activity; or derivatives thereof, analogues thereof, pharmaceutically acceptable salts thereof, and metabolites thereof; with the proviso that the compound is not Tranilast.
A simple two-step synthesis of avenanthramides, constituents of oats (Avena sativa L)
Kamat, Shrivallabh P.,Parab, Sulaksha J.
, p. 2074 - 2078 (2008/09/19)
A simple two-step general procedure has been developed to prepare naturally occurring and synthetic avenanthramides, constituents of oats (Avena sativa L). Reaction of anthranilic acid 1 with Meldrum's acid 2 gives half amide of malonic acid 3 which on condensation with different benzaldehyde derivatives 4a-m gives avenanthramides 5a-m of which 5a-d are natural, 5e-g are their methyl ethers and 5h-m are synthetic.
Avenanthramides in oats (Avena sativa L.) and structure-antioxidant activity relationships
Bratt, Katarina,Sunnerheim, Kerstin,Bryngelsson, Susanne,Fagerlund, Amelie,Engman, Lars,Andersson, Rolf E.,Dimberg, Lena H.
, p. 594 - 600 (2007/10/03)
Eight avenanthramides, amides of anthranilic acid (1) and 5-hydroxyanthranilic acid (2), respectively, and the four cinnamic acids p-coumaric (p), caffeic (c), ferulic (f), and sinapic (s) acid, were synthesized for identification in oat extracts and for structure-antioxidant activity studies. Three compounds (2p, 2c, and 2f) were found in oat extracts. As assessed by the reactivity toward 1,1-diphenyl-2-picrylhydrazyl (DPPH), all avenanthramides except 1p showed activity. Initially, the antioxidant activity of the avenanthramides decreased in a similar order as for the corresponding cinnamic acids, that is: sinapic > caffeic > ferulic > p-coumaric acid. The avenanthramides derived from 2 were usually slightly more active than those derived from 1. All avenanthramides inhibited azo-initiated peroxidation of linoleic acid. 1c and 1s were initially the most effective compounds. The relative order of antioxidant activities was slightly different for the DPPH and the linoleic acid assays run in methanol and chlorobenzene, respectively.
The Phytoalexins of Oat Leaves: 4H-3,1-Benzoxazin-4-ones or Amides?
Crombie, Leslie,Mistry, Jayshree
, p. 2647 - 2648 (2007/10/02)
Synthetic evidence is presented that the major phytoalexin of oat leaves is not the 4H-3,1-benzoxazin-4-one previously reported, but the corresponding amide.Other oat and carnation phytoalexins are prepared.
Process for the production of nuclear substituted cinnamoylanthranilic acid derivatives
-
, (2008/06/13)
The present invention provides an improved method for producing a nuclear substituted cinnamoylanthranilic acid compound. Illustrative of the process is the reaction of 3-hydroxy-4-methoxybenzaldehyde with 2-carboxymalonanilic acid in an inert solvent medium in the presence of a molar excess of piperidine to provide a high purity intermediate salt precipitate, and the salt is treated with an acidic reagent to yeild N-(3-hydroxy-4-methoxycinnamoyl)anthranilic acid product.
