## Abstract Four analogs of abscisic acid (ABA) with deuterium atoms at nonβexchangeable positions have been synthesized to be used as standards for quantitation of the plant hormone ABA by mass spectrometry and also to be employed as substrates for metabolism studies. Deuterium atoms were introduc
Syntheses of deuterated jasmonates for mass spectrometry and metabolism studies
β Scribed by Patrycja W. Galka; Stephen J. Ambrose; Andrew R. S. Ross; Suzanne R. Abrams
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- French
- Weight
- 158 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0022-2135
- DOI
- 10.1002/jlcr.994
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β¦ Synopsis
Jasmonic acid and its metabolites play an essential role in the regulation of plant development and systemic defense responses. Isotopically labeled standards are required to quantify plant hormones for metabolism studies using mass spectrometry. A convenient method for the preparation of deuterated analogs of jasmonates is demonstrated. Modification of commercially available methyl jasmonate by basecatalyzed proton/deuterium exchange or Wittig reaction introduces either two or three heavy atoms into a molecule.
π SIMILAR VOLUMES
Four deuterium-labelled ABA catabolites of high isotopic purity were prepared for hormone profiling studies using HPLC-ESI-MS-MS. The catabolites, namely [7 0 ,7 0 ,7 0d 3 ]-PA, [7 0 ,7 0 ,7 0 -d 3 ]-DPA, [5,8 0 ,8 0 ,8 0 -d 4 ]-7 0 -hydroxyABA and [4,5,8 0 ,8 0 ,8 0 -d 5 ]-ABA glucose ester were pr
The in vivo and in vitro metabolism of temoporfin (m-THPC), one of the most potent photosensitizers for the treatment of cancer by photodynamic therapy, has been studied in detail by HPLC with fluorescence and spectrophotometric detection and on-line HPLC-electrospray mass spectrometry. The results