18159-23-4Relevant academic research and scientific papers
Design and synthesis of non-peptide mimetics mapping the immunodominant myelin basic protein (MBP83-96) epitope to function as T-cell receptor antagonists
Yannakakis, Mary-Patricia,Simal, Carmen,Tzoupis, Haralambos,Rodi, Maria,Dargahi, Narges,Prakash, Monica,Mouzaki, Athanasia,Platts, James A.,Apostolopoulos, Vasso,Tselios, Theodore V.
, (2017/06/19)
Encephalitogenic T cells are heavily implicated in the pathogenesis of multiple sclerosis (MS), an autoimmune demyelinating disease of the central nervous system. Their stimulation is triggered by the formation of a trimolecular complex between the human
Intramolecular Oxidative Arylations in 7-Azaindoles and Pyrroles: Revamping the Synthesis of Fused N-Heterocycle Tethered Fluorenes
Laha, Joydev K.,Bhimpuria, Rohan A.,Hunjan, Mandeep Kaur
supporting information, p. 2044 - 2050 (2017/02/18)
We revealed intramolecular oxidative arylations in 7-azaindoles and pyrroles that, for the first time, provided direct access to 7-azaindole- or pyrrole-fused isoindolines and tetrahydroisoquinolines. In addition, N-benzylation of 7-azaindoles or pyrroles with sterically hindered sec-benzyl alcohols by Mitsunobu reaction followed by intramolecular oxidative arylation allowed access to chiral congeners of fused isoindolines that have little precedence. A new opportunity in the design and synthesis of fluorene-based organic emitters is demonstrated in the preparation of novel fused N-heterocycle tethered fluorenes, including a chiral fluorene architecture.
Palladium-Catalyzed Regioselective Dehydrogenative C–H/C–H Cross-Coupling of Pyrroles and Pyridine N-Oxides
Liu, Shanshan,Tzschucke, C. Christoph
supporting information, p. 3509 - 3513 (2016/07/28)
The palladium-catalyzed cross-dehydrogenative coupling of N-alkylpyrroles and pyridine N-oxides gave the corresponding pyrrolylpyridine N-oxides. Cu(OAc)2·H2O as a co-catalyst with air as the terminal oxidant led to preferential coupling in the β-position, whereas AgOAc as the stoichiometric oxidant resulted in preferential coupling in the α-position. N-(Benzyloxymethyl)pyrrole derivatives were deprotected by hydrogenolysis followed by basic hydrolysis.
O-Iodoxybenzoic acid (IBX): A versatile reagent for the synthesis of N-substituted pyrroles mediated by β-cyclodextrin in water
Narayana Murthy,Nageswar
supporting information; experimental part, p. 4481 - 4484 (2011/09/19)
O-Iodoxybenzoic acid (IBX), a very mild and efficient hypervalent iodine(V) reagent, aromatizes diversely substituted 1-benzylpyrrolidines and N-substituted l-proline analogues to the corresponding substituted pyrroles in good to excellent yields under mild conditions mediated by β-cyclodextrin in water at room temperature. To the best of our knowledge, this is the first report on IBX, promoting complete aromatization leading to N-benzylpyrroles from the corresponding saturated five membered heterocyclic derivatives in water medium.
Synthesis of 2-(N-benzylpyrrolyl)-benzimidazoles using polyphosphoric acid prompted cyclocondensation
Mochona, Bereket,Le, Laine,Gangapuram, Madhavi,Mateeva, Nelly,Ardley, Tiffany,Redda, Kinfe K.
experimental part, p. 1367 - 1371 (2010/12/29)
Synthesis of a series of 2-substituted benzimidazoles was carried out for screening anti-inflammatory activities. 2-(N-benzylpyrrolyl)-benzimidazoles 9a-k were synthesized from N-benzyl-2-pyrrole carboxylic acids 8a-d and 4-substituted-1,2-phenylenediamin
Structure-activity relationship and liver microsome stability studies of pyrrole necroptosis inhibitors
Teng, Xin,Keys, Heather,Yuan, Junying,Degterev, Alexei,Cuny, Gregory D.
body text, p. 3219 - 3223 (2009/04/06)
Necroptosis is a regulated caspase-independent cell death pathway resulting in morphology reminiscent of passive non-regulated necrosis. Several diverse structure classes of necroptosis inhibitors have been reported to date, including a series of [1,2,3]thiadiazole benzylamide derivatives. However, initial evaluation of mouse liver microsome stability indicated that this series of compounds was rapidly degraded. A structure-activity relationship (SAR) study of the [1,2,3]thiadiazole benzylamide series revealed that increased mouse liver microsome stability and increased necroptosis inhibitory activity could be accomplished by replacement of the 4-cyclopropyl-[1,2,3]thiadiazole with a 5-cyano-1-methylpyrrole. In addition, the SAR and the cellular activity profiles, utilizing different cell types and necroptosis-inducing stimuli, of representative [1,2,3]thiadiazole and pyrrole derivatives were very similar suggesting that the two compound series inhibit necroptosis in the same manner.
FLUORO-SUBSTITUTED INHIBITORS OF D-AMINO ACID OXIDASE
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Page/Page column 73, (2008/06/13)
This invention provides novel inhibitors of the enzyme D-amino acid oxidase as well as pharmaceutical compositions including the compounds of the invention. The invention also provides methods for the treatment and prevention of neurological disorders, such as neuropsychiatric and neurodegenerative diseases, as well as pain, ataxia and convulsion. The compounds of the invention have the general structure: wherein A is NH or S. Q is a member selected from CR1 and N. X and Y are members independently selected from O, S, CR2, N and NH. R1, R2 and R4 are members independently selected from H and F, provided that at least one member selected from R1, R2 and R4 is F. R6 is a member selected from O?X+ and OH, wherein X+ is a positive ion, which is a member selected from inorganic positive ions and organic positive ions.
4,5-Diaryl-1H-pyrrole-2-carboxylates as combretastatin A-4/lamellarin T hybrids: Synthesis and evaluation as anti-mitotic and cytotoxic agents
Banwell, Martin G.,Hamel, Ernest,Hockless, David C.R.,Verdier-Pinard, Pascal,Willis, Anthony C.,Wong, David J.
, p. 4627 - 4638 (2007/10/03)
The 4,5-diarylated-1H-pyrrole-2-carboxylates 3-8 have each been prepared as hybrids of the potent anti-mitotic agent combretastatin A-4 (1) and the similarly active marine alkaloid lamellarin T (2). The key steps involved selective lithium-for-halogen exchange at C5 within the N-PMB protected 4,5-dibromopyrrole 22 and Negishi cross-coupling of the derived zincated species with the relevant aryl iodide. The ensuing 5-aryl-4-bromopyrrole then engaged in Suzuki-Miyaura cross-coupling with the appropriate arylboronic acid to give the 4,5-diarylated pyrroles 4, 6 and 8. TFA-promoted removal of the N-PMB group within these last compounds then gave the N-unsubstituted congeners 3, 5 and 7. Compounds 3-8 have all been evaluated for their anti-mitotic and cytotoxic properties and two of them, 3 and 5, display useful activities although they are less potent than combretastatin A-4. Crown Copyright
6-(1-ACYL-1-HYDROXYMETHYL)PENICILLANIC ACID DERIVATIVES
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, (2008/06/13)
6-(1-Acyl-1-hydroxymethyl)penicillanic acid derivatives are useful as antibacterials and/or beta-lactamase inhibitors.
Alphacarbamoyl-pyrrolpropionitriles
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, (2008/06/13)
1-Substituted-β-oxo-α-phenylcarbamoyl-pyrrolpropionitriles, e.g. those of the formula STR1 their alkylenol ethers or alkanoylenol esters and salts thereof are antiinflammatory and antiarthritic agents.
