56017-85-7Relevant articles and documents
Total Synthesis of Oxidized Phospholipids. 3. The (11E)-9-Hydroxy-13-oxotridec-11-enoate Ester of 2-Lysophosphatidylcholine
Deng, Yijun,Salomon, Robert G.
, p. 6660 - 6665 (2000)
A total synthesis of (11E)-9-hydroxy-13-oxotridec-11-enoate ester of 2-lysophosphatidylcholine (HOT-PC) was devised to facilitate identification of this oxidized phospholipid. A lactone, 8-(3-oxo-1H,6H-2-oxinyl)octanoic acid (1), believed to be generated through an intermediate (11E)-9-hydroxy-13-oxotridec-11-enoic acid (HOT), is produced upon autoxidation of linoleic acid. A synthesis of lactone 1 methyl ester was accomplished from HOT involving a novel trans-cis isomerization that is driven to completion by cyclization to a hemiacetal. An alternative route to this carbon skeleton was also acheived that provides the lactone 1 itself.
RAPIDLY ACCELERATING FIBROSARCOMA PROTEIN DEGRADING COMPOUNDS AND ASSOCIATED METHODS OF USE
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Paragraph 00281, (2022/03/22)
Bifunctional compounds, which find utility as modulators of Rapidly Accelerated Fibrosarcoma (Raf, such as c-Raf, A-Raf, and/or B-Raf), are described herein. In particular, the hetero-bifunctional compounds of the present disclosure contain on one end a moiety that binds to the cereblon E3 ubiquitin ligase and on the other end a moiety which binds Raf, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The hetero-bifunctional compounds of the present disclosure exhibit a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aberrant regulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
Diastereoselective synthesis of β-lactams via Kinugasa reaction of acyclic chiral nitrones
Mucha, ?ukasz,Parda, Kamil,Staszewska-Krajewska, Olga,Stecko, Sebastian,Ulikowski, Artur,Frelek, Jadwiga,Suszczyńska, Agata,Chmielewski, Marek,Furman, Bart?omiej
, p. 12 - 21 (2015/12/31)
An approach to β-lactams via a Kinugasa reaction between chiral copper acetylides and chiral acyclic nitrones bearing either 1,3-dioxane or 1,3-dioxolane moieties is reported. The stereochemical preferences observed in these reactions are discussed. The reaction provides access to a variety of interesting β-lactam structures. Electronic circular dichroism in combination with NMR spectroscopy was shown to be a useful and effective method for the reliable determination of the absolute configuration of all components of a complex mixtures of azetidinones. The effectiveness of the chiral analysis of complex mixtures was demonstrated for HPLC coupled on-line with electronic circular dichroism detection as well.
Synthesis, structure and pyrolysis of stabilised phosphonium ylides containing saturated oxygen heterocycles
Aitken, R. Alan,Karodia, Nazira,McCarron, Hollie B.,Rouxel, Cécile,Sahabo, Nina,Slawin, Alexandra M. Z.
, p. 1794 - 1804 (2016/02/10)
A range of twelve stabilised phosphonium ylides containing tetrahydrofuran, tetrahydropyran or 2,2-dimethyl-1,3-dioxolane rings have been prepared and fully characterised, including one X-ray structure determination of each type. The X-ray structures confirm the P=C and C=O functions to be syn and all the compounds undergo thermal extrusion of Ph3PO to give the corresponding alkynes. In some cases there is also competing loss of Ph3P to give different carbene-derived products and evidence has been obtained for the generation of 2-phenyloxete in this way. Raising the pyrolysis temperature leads in several cases to new secondary reactions of the alkyne products involving a sequence of alkyne to vinylidene isomerisation, intramolecular CH insertion, and retro Diels Alder reaction.
