849834-73-7Relevant academic research and scientific papers
Total Synthesis of a Chimeric Glycolipid Bearing the Partially Acetylated Backbone of Sponge-Derived Agminoside e
Cloutier, Maude,Cordeil, Justin,Di Cintio, Sabrina,Gauthier, Charles,Groleau, Marie-Christine,Legault, Jean,Muru, Kevin,Provost-Savard, Arianne,Burton, Océane,Déziel, Eric
, p. 15357 - 15375 (2021/11/12)
We describe the total synthesis of a chimeric glycolipid bearing both the partially acetylated backbone of sponge-derived agminoside E and the (R)-3-hydroxydecanoic acid chain of bacterial rhamnolipids. The branched pentaglucolipid skeleton was achieved using a [3 + 2] disconnection approach. The β-(1 → 2) and β-(1 → 4)-glycosidic bonds were synthesized through a combination of NIS/Yb(OTf)3- and TMSOTf-mediated stereoselective glycosylations of thiotolyl, N-phenyltrifluoroacetimidate, and trichloroacetimidate donors. Late-stage pentaacetylation, Staudinger reduction of a (2-azidomethyl)benzoyl group, followed by continuous-flow microfluidic hydrogenolysis completed the total synthesis of the structurally simplified glycolipid, whose partial acetylation pattern on the glycan part was identical to agminoside E. Our study lays the foundation for the total synthesis of sponge-derived agminosides and the understanding of their biological functions in sponges.
HEPARANASE COMPOUNDS AND METHODS OF USE
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Page/Page column 41-42, (2020/11/03)
The invention relates to compounds that interact with heparanase, uses in heparanase screening, uses in in vitro and in vivo imaging (e.g., positron emission tomography (PET) and magnetic resonance imaging (MRI)), methods of synthesis, methods of modulati
Synthesis and biological evaluation of a novel MUC1 glycopeptide conjugate vaccine candidate comprising a 4'-deoxy-4'-fluoro-Thomsen-Friedenreich epitope
Johannes, Manuel,Reindl, Maximilian,Gerlitzki, Bastian,Schmitt, Edgar,Hoffmann-R?der, Anja
supporting information, p. 155 - 161 (2015/02/05)
The development of selective anticancer vaccines that provide enhanced protection against tumor recurrence and metastasis has been the subject of intense research in the scientific community. The tumor-associated glycoprotein MUC1 represents a well-established target for cancer immunotherapy and has been used for the construction of various synthetic vaccine candidates. However, many of these vaccine prototypes suffer from an inherent low immunogenicity and are susceptible to rapid in vivo degradation. To overcome these drawbacks, novel fluorinated MUC1 glycopeptide-BSA/TTox conjugate vaccines have been prepared. Immunization of mice with the 4'F-TF-MUC1-TTox conjugate resulted in strong immune responses overriding the natural tolerance against MUC1 and producing selective IgG antibodies that are cross-reactive with native MUC1 epitopes on MCF-7 human cancer cells.
Regioselective one-pot protection, protection-glycosylation and protection-glycosylation-glycosylation of carbohydrates: A case study with d-glucose
Huang, Teng-Yi,Zulueta, Medel Manuel L.,Hung, Shang-Cheng
, p. 376 - 382 (2014/01/06)
Well-defined oligosaccharides are important requirements in evaluating structure-activity relationships to decipher the roles of carbohydrates in various physiological processes. These oligosaccharides are accessed mainly through chemical synthesis, which
Catalytic carbon-sulfur bond formation by amphoteric vanadyl triflate: exploring with thia-Michael addition, thioacetalization, and transthioacetalization reactions
Chen, Chien-Tien,Lin, Yow-Dzer,Liu, Cheng-Yuan
supporting information; experimental part, p. 10470 - 10476 (2010/02/28)
A series of thiols have been examined as protic nucleophiles for Michael-type additions to α,β-unsaturated carbonyls as well as double nucleophilic condensations with aldehydes, ketones, and acetals catalyzed by amphoteric, water-tolerant vanadyl triflate under mild and neutral conditions. The newly developed C-S bond formation protocols were carried out smoothly in good to high yields in a highly chemoselective manner.
2-Bromoethyl glycosides for synthesis of glycoconjugates on solid support
Ellervik, Ulf,Jacobsson, M?rten,Ohlsson, J?rgen
, p. 2421 - 2429 (2007/10/03)
2-Bromoethyl glycosides can easily and in high yields be transformed into sulfones by treatment with a suitable thiol followed by oxidation with mCPBA. The observation that the so formed sulfones were cleaved by treatment with NaOMe/MeOH was used to desig
