83540-94-7Relevant academic research and scientific papers
Structural and Functional Analysis of Bacterial Sulfonosphingolipids and Rosette-Inducing Factor 2 (RIF-2) by Mass Spectrometry-Guided Isolation and Total Synthesis
Beemelmanns, Christine,Jautzus, Theresa,King, Nicole,Leichnitz, Daniel,Peng, Chia-Chi,Ragu?, Luka,Regestein, Lars,Rutaganira, Florentine U. N.
supporting information, (2022/01/04)
We have analyzed the abundance of bacterial sulfonosphingolipids, including rosette-inducing factors (RIFs), in seven bacterial prey strains by using high-resolution tandem mass spectrometry (HRMS2) and molecular networking (MN) within the Glob
POSITIVE ALLOSTERIC MODULATORS OF MUSCARINIC M2 RECEPTOR
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Paragraph 1046-1048, (2018/11/21)
The present application relates to positive allosteric modulators of the muscarinic M2 receptor, especially to novel 7-substituted 1-arylnaphthyridine-3-carboxamides, to processes for preparation thereof, to the use thereof, alone or in combinations, for treatment and/or prevention of diseases, and to the use thereof for production of medicaments for treatment and/or prevention of diseases, in particular for treatment and/or prevention of cardiovascular disorders and/or renal disorders.
ANTIMICROBIAL COMPOUNDS AND METHODS OF MAKING AND USING THE SAME
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Paragraph 274; 278; 279, (2016/09/26)
The present disclosure relates generally to the field of antimicrobial compounds and to methods of making and using them. These compounds are useful for treating, preventing, reducing the risk of, and delaying the onset of microbial infections in humans a
Preparation of pseudo glycoamino acid and its application to glycopeptide synthesis
Tomabechi, Yusuke,Inazu, Toshiyuki
supporting information; experimental part, p. 6504 - 6507 (2012/01/17)
A pseudo glycoamino acid composed of a 1,3-diol structure and an amino acid was synthesized. This amino acid analog can act as an alternative acceptor to an amino acid containing GlcNAc for transglyco-sylation by Endo-M. A pseudo glycopeptide was synthesi
Direct, catalytic synthesis of carbapenams via cycloaddition/rearrangement cascade reaction: Unexpected acetylenes' structure effect
Mames, Adam,Stecko, Sebastian,Mikolajczyk, Paulina,Soluch, Magdalena,Furman, Bartlomiej,Chmielewski, Marek
supporting information; experimental part, p. 7580 - 7587 (2011/03/17)
Reactions of acetylenes derived from glyceraldehyde and propargyl aldehyde show remarkable reactivity in Kinugasa cycloaddition/rearrangement cascade process catalyzed by Cu(I) ion. Reactions proceed by formation of a rigid dinuclear copper(I) complex in which each copper ion is coordinated to one or both oxygen atoms in the acetylene molecule and to both triple bonds. It has been demonstrated that one oxygen atom can be replaced by the phenyl ring, which is able to coordinate the copper ion by the aromatic sextet. Kinugasa reactions that proceed in a high yield can also be performed in the presence of a catalytic amount of the copper salt to provide products in an acceptable yield without a decrease of diastereoselectivity.
Novel glucagon receptor antagonists with improved selectivity over the glucose-dependent insulinotropic polypeptide receptor
Kodra, János T.,J?rgensen, Anker Steen,Andersen, Birgitte,Behrens, Carsten,Brand, Christian Lehn,Christensen, Inger Th?ger,Guldbrandt, Mette,Jeppesen, Claus Bekker,Knudsen, Lotte B.,Madsen, Peter,Nishimura, Erica,Sams, Christian,Sidelmann, Ulla G.,Pedersen, Raymon A.,Lynn, Francis C.,Lau, Jesper
experimental part, p. 5387 - 5396 (2009/07/01)
Optimization of a new series of small molecule human glucagon receptor (hGluR) antagonists is described. In the process of optimizing glucagon receptor antagonists, we counter-screened against the closely related human gastric inhibitory polypeptide receptor (hGIPR), and through structure activity analysis, we obtained compounds with low nanomolar affinities toward the hGluR, which were selective against the hGIPR and the human glucagon-like peptide-1 receptor (hGLP-1R). In the best cases, we obtained a >50 fold selectivity for the hGluR over the hGIPR and a >1000 fold selectivity over the hGLP-1R. A potent and selective glucagon receptor antagonist was demonstrated to inhibit glucagon-induced glycogenolysis in primary rat hepatocytes as well as to lower glucagon-induced hyperglycemia in Sprague - Dawley rats. Furthermore, the compound was shown to lower blood glucose in the ob/ob mouse after oral dosing.
Enantioselective Syntheses of 3-Substituted 4-(Alkoxycarbonyl)-2-azetidinones from Malic Acid
Miller, Marvin J.,Bajwa, Joginder S.,Mattingly, Phillip G.,Peterson, Kathleen
, p. 4928 - 4933 (2007/10/02)
Enantioselective syntheses of 3-substituted 4-(alkoxycarbonyl)-2-azetidinones from malic acid have been developed.Alkylation of diesters of D-malic acid provided primarily the erythro products 15RS.Base-mediated inversion gave racemic threo isomers 15.Saponification of 15 and selective monoesterification provided the correspondingly substituted β-hydroxy acids 17, which could also be epimerized at the hydroxyl position.Separate conversion of the isomers 17 to the hydroxamates 18 followed by cyclization gave the desired β-lactams 19 with complete control of stereochemistry.
