72 research outputs found
2-Cyanoethyl-isoxazolin-5-one Is a Major Low Molecular Weight Nitrogenous Compound in Sweet Pea (<i>Lathyrus odoratus</i> L.)
No full textIsolation and characterization of 2-(β,D-glucopyranosyl)-4-alanyl-3-Isoxazolin-5-one : a second UV-sensitive heterocyclic α-amino acid from Pisum sativum L
No full textIn addition to 2-alanyl-3-isoxazolin-5-one (I) an other UV-sensitive heterocyclic α-amino acid (III) has been isolated and purified from pea seedlings. Some properties of III are compared with those of synthetic isoxazolinone derivatives and with those of I. The chemical structure was analyzed by chemical methods and by spectroscopy. The structure was found to be: 2-(β,D-glucopyranosyl)-4-alanyl-3-isoxazolin-5-one
New isoxazolinone amino acids from Lathyrus odoratus seedlings
No full textIn addition to β-(isoxazolin-5-one-2-yl)-alanine (I) and β-(2-β-D-glucopyranosyl-isoxazolin-5-one-4-yl)-alanine (III), previously found in Pisum sativum seedlings, two new amino acids and an amine containing the same heterocyclic ring have been isolated from Lathyrus odoratus seedlings. Their structures were determined as α-amino-γ-(isoxazolin-5-one-2-yl)-butyric acid (VI), 2-aminoethyl-isoxazolin-5-one (VII) and the γ-glutamyl derivative of the latter (V)
Metabolic routes of beta-(isoxazolin-5-on-2-yl)-L-alanine (BIA), the precursor of the neurotoxin ODAP (beta-N-oxalyl-L-alpha,beta,-diaminopropionic acid), in different legume seedlings.
No full textEnzymatic formation of 2,3-diaminopropionic acid, the direct precursor of the neurotoxin beta-ODAP, in Lathyrus sativus.
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Inhibitory activity of a naturally occurring heterocyclic beta-substituted alanine, beta-(isoxazolin-5-on-4-yl)-L-alanine, on the L-glutamate/L-aspartate transporter (GLAST) expressed in Xenopus oocytes.
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