62290-46-4Relevant academic research and scientific papers
Synthesis and structure-activity relationship of new chalcone linked 5-phenyl-3-isoxazolecarboxylic acid methyl esters potentially active against drug resistant Mycobacterium tuberculosis
Sahoo, Santosh Kumar,Rani, Bandela,Gaikwad, Nikhil Baliram,Ahmad, Mohammad Naiyaz,Kaul, Grace,Shukla, Manjulika,Nanduri, Srinivas,Dasgupta, Arunava,Chopra, Sidharth,Yaddanapudi, Venkata Madhavi
supporting information, (2021/06/14)
In search of novel therapeutic agents active against emerging drug-resistant Mycobacterium tuberculosis and to counter the long treatment protocol of existing drugs, herein we present synthesis and biological evaluation of a new series of 5-phenyl-3-isoxazolecarboxylic acid methyl ester-chalcone hybrids. Among 35 synthesized compounds, 32 analogues displayed potent in-vitro activity against Mycobacterium tuberculosis H37Rv with MIC 0.12–16 μg/mL. Cell viability test against Vero cells indicated 29 compounds to be non-cytotoxic (CC50 > 20 μg/mL & SI > 10). Most potent compounds with MIC 0.12 μg/mL (7 b, 7j, 7 ab) exhibited selectivity index (SI) in excess of 320. Further studies on activity against drug-resistant Mycobacterium tuberculosis revealed 7j as the most potent compound with MIC 0.03–0.5 μg/mL. Time-kill kinetic study suggested compound 7j displaying concentration-dependent bactericidal killing activity with relatively comparable potency to that of current first-line anti-TB drugs. Taken together, 7j presents a novel hit with potential to be translated into a potent antimycobacterial.
Synthesis and antifungal activity of 1-aminomethyl-3-{4- (chlorobenzyloxy) benzoylhydrazono}-4, 5/5, 6-dichloroindolin-2- ones
Harrison, Darwin Anil,Rastogi, Nisheeth,Rahman, Masihur
, p. 411 - 418 (2019/01/21)
3-{4-(Chlorobenzyloxy) benzoylhydrazono}-4,5/5,6-dichloroindolin-2-ones 1a,b-5a,b, were synthesized by the condensation of 4-(chlorobenzyloxy) benzoylhydrazines and 4, 5/5, 6-dichloroindolin-2,3-diones. Compounds 1a,b-5a,b when subjected to Mannich reaction with secondary heterocyclic amines in the presence of formaldehyde, furnished 1-aminomethyl-3-{4-(chlorobenzyloxy) benzoylhydrazono}-4, 5/5, 6-dichloroindolin-2- ones 6a,b-20a,b. The structures of the compounds have been established by means of spectral (IR and 1H NMR) and elemental analysis. The compounds have been screened for their antifungal potential against human pathogenic fungi.
Synthesis and antimicrobial potential of Mannich bases of 4-chloro-3-{4-(chlorobenzyloxy)-benzoylhydrazono}-indolin-2-ones
Rastogi, Nisheeth,Harrison, Darwin Anil,Tripathi, Diwakar,Shukla, Sarveshwar
scheme or table, p. 991 - 995 (2010/08/05)
4-Chloro-3-{4-(chlorobenzyloxy)-benzoylhydrazono}-indolin-2-ones (1-4) were synthesised by the condensation of 4-(chlorobenzyloxy)-benzoylhydrazines and 4-chloroisatin. On being subjected to aminomethylation in the presence of formaldehyde and heterocyclic secondary amines, indolinones 1-4, furnished aminomethylated indolinones (Mannich bases) 5-20. The structures of the compounds have been established by means of elemental analysis and spectral data (IR, PMR and Mass). The compounds have been screened for their antimicrobial potential against human pathogenic bacteria and fungi.
