Synthesis and evaluation of small libraries of triazolylmethoxy chalcones, flavanones and 2-aminopyrimidines as inhibitors of mycobacterial FAS-II and PknG |
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Authors: | Namrata Anand Priyanka Singh Anindra Sharma Sameer Tiwari Vandana Singh Diwakar K Singh Kishore K Srivastava B N Singh Rama Pati Tripathi |
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Institution: | Medicinal & Process Chemistry Division, Central Drug Research Institute, CSIR, PO Box 173, Chattar Manzil, Mahatma Gandhi Marg, Lucknow 226001, India. |
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Abstract: | A synthetic strategy to access small libraries of triazolylmethoxy chalcones 4{1-20}, triazolylmethoxy flavanones 5{1-10} and triazolylmethoxy aminopyrimidines 6{1-17} from a common substrate 4-propargyloxy-2-hydroxy acetophenone using a set of different reactions has been developed. The chalcones and flavanones were screened against mycobacterial FAS-II pathway using a recombinant mycobacterial strain, against which the most potent compound showed ~88% inhibition in bacterial growth and substantially induction of reporter gene activity at 100μM concentration. The triazolylmethoxy aminopyrimdines were screened against PknG of Mycobaceterium tuberculosis displaying moderate to good activity (23-53% inhibition at 100μM), comparable to the action of a standard inhibitor. |
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