Synthesis and antimicrobial activity of pyrazolinones and pyrazoles having benzothiazole moiety
作者:Mohd. Amir、Sadique A. Javed、Mohd. Zaheen Hassan
DOI:10.1007/s00044-011-9642-0
日期:2012.7
A new class of 4-arylhydrazono-1-benzothiazolyl-3-methylpyrazolin-5-ones (3a-j) and 4-arylazo-1-benzothiazolyl-3,5-dimethylpyrazoles (4a-j) were designed as pharmacophore hybrids between pyrazolinone/pyrazole and benzothiazole moiety. The target molecules were efficiently synthesized by the cyclization of various oxobutyrates/pentane-2,4-dione derivatives with 6-chloro-2-hydrazinobenzothiazole in the presence of glacial acetic acid. The compounds were evaluated for their in vitro antimicrobial activity. Preliminary study of the structure-activity relationship revealed that electron-withdrawing groups in phenyl ring had a promising effect on the antimicrobial activity. Also, correlation study has been used to establish the relationships between the antibacterial activity and physicochemical parameter clogP.
Revanasiddappa; Jose, Neethu; Kalsi, Jasmine, Indian Journal of Heterocyclic Chemistry, 2013, vol. 23, # 2, p. 135 - 138
作者:Revanasiddappa、Jose, Neethu、Kalsi, Jasmine、Jisha、Varghese, Saira Susan
DOI:——
日期:——
Garg,H.G., Journal of the Indian Chemical Society, 1963, vol. 40, p. 135 - 136
作者:Garg,H.G.
DOI:——
日期:——
The microwave-assisted synthesis of 5-arylazo-4,6-disubstituted-3-cyano-2-pyridone dyes
作者:Dušan Z. Mijin、Mostafa Baghbanzadeh、Claudia Reidlinger、C. Oliver Kappe
DOI:10.1016/j.dyepig.2009.10.006
日期:2010.4
A novel protocol for the rapid synthesis of pyridone colorants under controlled microwave irradiation ill a dedicated reactor is described. Short reaction times, high isolated yields. and versatility for different substrates are the advantages of the reported method. (C) 2009 Elsevier Ltd. All rights reserved.
Ghoneim; Moharram; Mabrouk, Journal of the Indian Chemical Society, 1998, vol. 75, # 4, p. 229 - 235