19275-82-2Relevant academic research and scientific papers
Synthesis and in vitro antifungal evaluation of benzoimidazolyl-piperazinyl-phenylmethanone derivatives
Kankate, Rani S.,Gide, Parag S.,Belsare, Deepak P.
, p. 1855 - 1863 (2015/04/22)
Benzimidazole and piperazines are the important pharmacophores in the structures of many antifungal compounds. Further, the phenylmethanone are also a unique class of compounds whose antifungal profile is not much exploited. So to exploit their antifungal potential we have selected these three combinations and framed the novel parent structure for our research work. In this study a novel series of benzimidazoles derivatives was synthesized by microwave irradiation and characterized by 1H NMR, 13C NMR, Infra Red (IR), and Mass Spectroscopy (MS), and by elemental analysis. The screening of compound for in vitro (turbidimetric method) antifungal activity against C.albicans revealed activity in many of the compounds as comparable to that of ketoconazole.
Synthesis of novel 2-[1-(1H-benzimidazol-2-yl)-ethylsulfanyl]-3H- quinazolin-4-ones
Srinivasa Reddy,Naidu,Dubey
, p. 257 - 260 (2013/09/24)
Condensation of 2-(4-oxo-3,4-dihydroquinazolin-2-ylsulfanyl)-propionic acid (1) with o-phenylenediamine (2) gave 2-[1-(1H-benzimidazol-2-yl)-ethylsulfanyl] -3H-quinazolin-4-one (3). The latter can also be prepared by the reaction of 2-(1-chloroethyl)-1H-benzimidazole (4) with 2-mercapto-3W-quinazolin-4-one (5) either in acetone/ triethylamine or in DMF / K2CO3 in the presence of TBAB as phase transfer catalyst. 3 can also be prepared yet by an alternative method involving reaction of 4 with potassium ethylthioxanthate yielding dithiocarbonic acid S-[1 H-benzomidazol-2-yl) ethyl) ethyl ester (6) and subsequent condensation of the latter with o-aminobenzamide (7), in the presence of TFA, under reflux in toluene.
Bicyclic Benzimidazole Compounds and Their Use as Metabotropic Glutamate Receptor Potentiators
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Page/Page column 68, (2009/08/14)
Compounds of Formula I: wherein A, B, D, L, R1, R2, R3, R4, m, and n are as defined for Formula I in the description. The invention also relates to processes for the preparation of the compounds and to new intermediates employed in the preparation, pharmaceutical compositions containing the compounds, and to the use of the compounds in therapy.
Studies on synthesis of unsymmetrical 2,2′-bisbenzimidazole sulphides of pharmacological interest
Dubey,Naidu,Reddy, P.V.V. Prasada,Mahesh Kumar,Vineel, B. George
experimental part, p. 1443 - 1446 (2009/04/06)
Condensation of 2-(α-chloroethyl)benzimidazole 1 with benzimidazole-2-thiol 2 gives 2-(α-thioethyl-2′-benzimidazolyl)- benzimidazole 3. The latter can also be prepared by the reaction of 2-(α-thioethyl)benzimidazoie 4 with 2-chlorobenzimidazole 5. Alternatively, 3 can also be synthesized by the independent condensation of o-phenylenediamine 7 respectively with 2-(s-α-ethyl-o-ethyldithio- carbonate)benzimidazole 6 and with 2-(α-thiopropionic acid) benzimidazole 8. The structures of all the compounds synthesized have been established on the basis of their spectroscopic data.
COMPOUNDS AND METHODS FOR KINASE MODULATION, AND INDICATIONS THEREFOR
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Page/Page column 98-99, (2008/12/07)
Compounds active on protein kinases are described, as well as methods of using such compounds to treat diseases and conditions associated with aberrant activity of protein kinases.
Synthesis and antiviral activity of new 1, 3, 4-dithi(thiadi)azino[4, 5-a]benzimidazole derivatives involving oxidative N-S and N-N bond formations
Yadav,Pal, Daya Ram
, p. 748 - 751 (2007/10/03)
Benzimidazol-2-ylalkyl N-aryldithiocarbamates (3a-d) undergo oxidative and chemoselective heterocyclizations with I2 and SOCl2 to yield 2-arylimino-4-methyl/H-2H, 4H[1, 3, 4]dithiazino[4, 5-a]benzimidazoles (4a-d) and 1-aryl-4-methyl/H-1, 2-dihydro-4H-[1, 3, 4]thiadiazino[4, 5-a]benzimidazol-2-thiones(5a-d), respectively. Compounds 5a-d on dethioxygenation furnish 1-aryl-4-methyl/H-1, 2-dihydro-4H-[1, 3, 4]thiadiazino[4, 5-a]benzimidazol-2-ones (6a-d). Amongst the compounds 3-6, compounds 5b, 5d and 6d exhibited 72-75% in vitro disease control against Corn virus, Bean virus and Cucumber mosaic virus at 1000 ppm concentration.
