129549-13-9Relevant articles and documents
Synthesis and evaluation of locostatin-based chemical probes towards PEBP-proteins
Hoogenboom, Jorin,Fiers, Martijn,Immink, Richard,Zuilhof, Han,Wennekes, Tom
, p. 2406 - 2409 (2016)
Phosphatidyl ethanolamine-binding proteins (PEBPs) are implicated in various critical physiological processes in all eukaryotes. Among them is Flowering Locus T (FT), the protein recently discovered as the vital flowering hormone in plants. Small molecule
ELONGATION FACTOR 1-ALPHA INHIBITORS AND USES THEREOF
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Paragraph 0051; 0571, (2021/08/13)
Disclosed herein, inter alia, are compounds for inhibiting Elongation Factor 1-alpha and uses thereof.
Diastereoselective [2,3]-Sigmatropic Rearrangement of N-Allyl Ammonium Ylides
Erkman, Kristin,J?rving, Ivar,Kaabel, Sandra,Kanger, T?nis,Murre, Aleksandra
, p. 4183 - 4197 (2019/11/14)
A rapid and diastereoselective method was developed for the [2,3]-sigmatropic rearrangement of N-Allyl ammonium ylides, affording products in up to 95percent isolated yields and up to 97:3 dr; most of the desired products were formed within 1 minute. For
Synthesis of enantioenriched α-chiral bicyclo[1.1.1]pentanes
Wong, Marie L. J.,Mousseau, James J.,Mansfield, Steven J.,Anderson, Edward A.
supporting information, p. 2408 - 2411 (2019/03/26)
Bicyclo[1.1.1]pentanes (BCPs), useful surrogates for para-substituted arenes, alkynes, and tert-butyl groups in medicinal chemistry, are challenging to prepare when featuring stereogenic centers adjacent to the BCP. We report the development of an efficie
Total Synthesis of Pericoannosin A
Lücke, Daniel,Linne, Yannick,Hempel, Katharina,Kalesse, Markus
supporting information, p. 4475 - 4477 (2018/08/09)
The first total synthesis of pericoannosin A (1) containing 15 steps in the longest linear sequence with an overall yield of 5.5% is reported. The hybrid peptide-polyketide was isolated from the endophytic fungus Periconia sp. F-31 and bears a unique tric
PROCESSES FOR PREPARING 2-DIHALO RIBOLACTONES
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Page/Page column 69, (2017/06/21)
Methods for forming 2-bromo, 2-fluoro ribofuranose intermediates and 2-chloro, 2- fluoro ribofuranose intermediates for use in preparing antiviral nucleosides are disclosed. Methods for forming nucleosides, and nucleoside prodrugs, using the intermediates, are also disclosed. The methods all produce intermediates, and the resulting nucleosides and prodrugs thereof, wherein the chirality of the carbon at the 2-position is controlled. In some embodiments, the chemistry involves using chiral auxiliaries, such as (R)-2,2-dimethyl-l,3- dioxolane-4-carbaldehyde, and in other embodiments, the chemistry involves using chiral starting materials, such as D-xylose.
Total synthesis of epothilone D: The nerol/macroaldolization approach
Wessjohann, Ludger A.,Scheid, Guenther O.,Eichelberger, Uwe,Umbreen, Sumaira
, p. 10588 - 10595 (2013/11/19)
A highly convergent and stereocontrolled synthesis of epothilone D (4) is reported. Key features are a cheap and Z-selective synthesis of the northern half based on nerol and acetoacetate and chromium(II)-mediated Reformatsky reactions as a powerful tool for chemoselective asymmetric carbon-carbon bond formations, including an unusual stereospecific macroaldolization.
Studies on the Eschenmoser coupling reaction and insights on its mechanism. Application in the synthesis of Norallosedamine and other alkaloids
Neto, Brenno A.D.,Lapis, Alexandre A.M.,Bernd, Alinne B.,Russowsky, Dennis
experimental part, p. 2484 - 2496 (2009/08/07)
The conditions of the Eschenmoser coupling reaction were studied. The formation of the α-thioiminium ion was achieved faster in the presence of an additive (NaI) and dry chloroform as the preferred solvent. The developed conditions were used for the second part of the reaction (the sulfur extrusion itself). The present protocol avoids the formation of byproducts, which were previously described as a major drawback to be overcome. Electrospray ionization tandem mass spectrometry was used to characterize some aspects (intermediates) of the first step of the reaction mechanism. Some reduction conditions were properly tested and the selected conditions were applied to the synthesis of the natural alkaloid Norallosedamine and other derivatives.
Synthesis and stereochemical assignment of FR252921, a promising immunosuppressant
Falck, J. Russell,He, Anyu,Fukui, Hiroki,Tsutsui, Hideyuki,Radha, Akella
, p. 4527 - 4529 (2008/09/17)
Synthetic detective work: FR252921, an unusual 19-membered lactone-dilactam, and three of its diastereomers were prepared by a versatile, convergent strategy from three key segments (see scheme). Comparison of the synthetic compounds with natural material established conclusively that FR252921 has the configuration 12S,13R,18R.
A short approach to the bicyclo[4.3.0]nonane fragment of stawamycin
Dias, Luiz C.,Melgar, Gliseida Z.,Jardim, Luciana S. A.
, p. 4427 - 4431 (2007/10/03)
The bicyclo[4.3.0]nonane (C11-C21) fragment of stawamycin has been prepared by a sequence involving 11 steps (10% overall yield) from methyl (R)-(-)-3-hydroxy-2-methylpropionate. Key steps are a Pd-catalysed Stille coupling reaction