Abstract
4-Phenyl-2H-pyrimido[2,1-b]benzothiazol-2-ones have been synthesized in quantitative yields by the reaction of 2-aminobenzothiazoles with alkynoic acid. The antimicrobial activity of the synthesized compounds was tested against bacterial species, Bacillus coagulans, Bacillus subtilis, Staphylococcus aureus, and Pseudomonas aeruginosa. The synthesized compounds have shown significant activity against microorganisms which can be correlated with the fused heterocyclic systems.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11164-010-0211-9/MediaObjects/11164_2010_211_Sch1_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11164-010-0211-9/MediaObjects/11164_2010_211_Sch2_HTML.gif)
Similar content being viewed by others
![](https://media.springernature.com/w215h120/springer-static/image/art%3Aplaceholder%2Fimages/placeholder-figure-springernature.png)
References
R.R. Gupta, M. Kumar, V. Gupta, Heterocyclic Chemistry, vol. I (Springer, Berlin, 1998)
R.R. Gupta, M. Kumar, V. Gupta, Heterocyclic Chemistry, vol. II (Springer, Berlin, 1999)
F. Palagiano, L. Arenare, P. De Caprariis, G. Grandolini, V. Ambrogi, L. Perioli, W. Filippelli, G. Falcone, F. Rossi, Farmaco 51, 483 (1996)
P.J. Roy, K. Landry, Y. Leblanc, Heterocycles 45, 2239 (1997)
C.O. Kappe, Tetrahedron 49, 6937 (1993)
A. Dandia, S. Khaturia, P. Sarawgi, A. Jain, Phosphorous Sulphur Silicon Relat. Elem. 182, 2529–2539 (2007)
R.S. Varma, Green Chem. 1, 43 (1999)
K.S. Atwal, B.N. Swanson, S.E. Unger, J. Med. Chem. 34, 806 (1991)
C.G. Rovnyak, K.S. Atwal, A. Hedberg, J. Med. Chem. 35, 3254 (1992)
H. Cho, M. Ueda, K. Shima, J. Med. Chem. 32, 2399 (1989)
F. Russo, G. Romeo, A. Caruso, V. Cutuli, D. Amore, Eur. J. Med. Chem. 29(7–8), 569–578 (1994)
M.M.M. Gineinah, Sci. Pharm. 69(1), 53–61 (2001)
R. Arpana, N. Siddiqui, S.A. Khan, Indian J. Pharm. Sci. 69, 10–17 (2007)
C. Landreau, D. Deniaud, M. Evain, A. Reliquet, J.C. Meslin, J. Chem. Soc. Perkin Trans. 1, 741 (2002)
J. Wang, X. Ai, H. Wahe, Z.T. Fomum, O. Sterner, M. Nielsen, M.R. Witt, Pharmacology 60, 175–178 (2000)
G. Trapani, M. Franco, A. Latrofa, A. Carotti, G. Genchi, M. Serra, G. Biggio, M. Liso, Eur. J. Med. Chem. 31, 575–587 (1996)
A.K. Fogla, V. Ankodia, P.K. Sharma, M. Kumar, Res. Chem. Intermed. 35, 35–41 (2009)
V. Ankodia, P.K. Sharma, V. Gupta, M. Kumar, Heterocycl. Commun. 14, 3–155 (2008)
B.S. Rathore, M. Kumar, Bioorg. Med. Chem. 14, 5678 (2006)
R.R. Gupta, M. Kumar, Synthesis, Reactions and Properties of Phenothiazines. in “Phenothiazines and 1,4-Benzothiazines” (Chemical and Biomedical Aspects), ed. by R.R. Gupta (Elsevier, Amsterdam, 1988), pp. 1–161
K.G. Baheti, S.B. Kapratwar, S.V. Kuberkar, Synth. Commun. 32(14), 2237–2243 (2002)
A. Shaabani, A. Rahmati, S. Naderi, Bioorg. Med. Chem. Lett. 15, 5553–5557 (2005)
M.S. Pingle, S.P. Vartale, V.N. Bhosale, S.V. Kuberkar, Arkivoc x, 190–198 (2006)
A.R. Katritzky, J.W. Rogers, R.M. Witek, S.K. Nair, Arkivoc viii, 52–60 (2004)
C.K. Chan, J.C.N. Ma, T.C.W. Mak, J. Chem. Soc. Perkin Trans. 2, 1070 (1977)
P.F. Asobo, H. Wahe, J.T. Mbafor, A.E. Nkengfack, Z.T. Fomum, E.F. Sopbue, D. Doepp, J. Chem. Soc. Perkin Trans. 1, 457 (2001)
B.S. Rathore, M. Kumar, Heteroatom Chem. 18, 81–86 (2007)
B.S. Rathore, M. Kumar, Res. Chem. Intermed. 32(7), 647 (2006)
A.D. Jordan, C. Luo, A.B. Reitz, J. Org. Chem. 68, 8693 (2003)
C.H. Collins, Microbiological Methods (Butterworths, London, 1967), p. 364
K.R. Cruickshank, Medical Microbiology, A Guide to Diagnosis and Control of Infection, 2nd edn. (E.S. Livingston Ltd., Edinburgh and London, 1968)
Acknowledgments
The authors are thankful to the head of the Department of Chemistry, University of Rajasthan, Jaipur (India) for providing the necessary laboratory as well as instrumentation facilities (IR, 1HNMR and 13C NMR). The director of the RSIC, CDRI, Lucknow (India) is acknowledged for providing mass spectrometry of the synthesized compound. We express our thanks to UGC, New Delhi, for providing Meritorious student fellowship to P.K.S.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sharma, P.K., Kumar, M. & Mohan, V. Synthesis and antimicrobial activity of 2H-pyrimido[2,1-b]benzothiazol-2-ones. Res Chem Intermed 36, 985–993 (2010). https://doi.org/10.1007/s11164-010-0211-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11164-010-0211-9