Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 14, Issue 38, Pages 9012-9020Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ob01597b
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Funding
- Centre National de la Recherche scientifique (CNRS), University of Montpellier
- Agence Nationale de la Recherche [OBELIP ANR-12-BSV1-0025]
- AstraZeneca
- Region Midi-Pyrenees
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An efficient regiospecific total synthesis of several branched fatty acyl hydroxyl-fatty acids (FAHFA) has been achieved from available terminal alkenes and alkynes. The key steps feature a boron trifluoride mediated epoxide ring opening with acetylide carbanions, followed by hydrogenation of the alkyne function. The carboxylic acid of the hydroxylated chains is introduced at the last step of the synthesis to allow the esterification of the branched hydroxyl group by fatty acids beforehand. The chemical syntheses of a linear FAHFA and a branched FAHFA analog containing a Z-olefin in the hydroxyl-fatty acid chain are also reported. A LC-MS/MS method has been developed. Several reversed phase columns were compared. Regioisomers were separated.
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