Council of Scientific and Industrial Research

Arshad Khan

Dhiman Sarkar

Sampa Sarkar

Sunita Ranjan Deshpande

Preeti Madhukar Chaudhary

Anjali Prabhakar Likhite

Sayalee Ramchandra Chavan

Shailaja Pramod Maybhate

Triazole derivatives useful as anti-tubercular compounds; process for preparation of the triazoles and a method for inhibiting growth ofBCG andH37Ra using the triazoles.

1, 2, 4-triazole derivatives and their anti-microbial activity

Invention provides antitubercular compounds selected from propargylated 1,2,3 triazoles of Formula I, wherein, X is sulfur(S) or a sulphone (A), n, m represent independently an integer O or 1, with the provision that when 'n' is 1, 'm' is 1; R1 is hydrogen; C1-C6 linear or branched alkyl group optionally substituted with aryl group; halogen; or aryl group optionally substituted with &#x2014;OCH3, halogen, and nitro; R2 and R3 are selected from the group consisting of hydrogen, C1-C6 alkyl optionally substituted with heterocyclic ring of 5 to 6 ring atoms containing one to three hetero atoms selected from oxygen, sulfur, nitrogen, which may be substituted with alkyl, arylalkyl, linear or branched alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, or allyl or propargyl groups consisting of 1 to 6 carbon atoms; Z is C1-C6 alkyl optionally substituted with heterocyclic ring of 1 to 6 ring atoms, containing one to three hetero atoms selected from oxygen, sulfur, nitrogen, which may be substituted with arylalkyl, linear or branched alkenyl, substituted alkenyl, alkynyl, substituted alkynyl allyl or propargyl groups consisting of 1 to 6 carbon atoms; with the provision that when &#x2018;m&#x2019; is 1, and &#x2018;n&#x2019; is zero; R1 is selected from the group consisting of hydrogen, halogen; C1-C6 linear or branched alkyl group optionally substituted with aryl group or aryl group optionally substituted with &#x2014;OCH3, halogen, and nitro, R2 and R3 are selected from the group consisting of hydrogen, C1-C6 alkyl optionally substituted with heterocyclic ring of 5 to 6 ring atoms containing one to three hetero atoms selected from oxygen, sulfur, nitrogen, which may be substituted with alkyl, arylalkyl, linear or branched alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, or allyl or propargyl groups consisting of 1 to 6 carbon atoms; Z is selected from the group consisting of halogen, C1-C6 linear or branched alkyl group optionally substituted with heterocyclic ring of 1 to 6 ring atoms, containing one to three hetero atoms selected from oxygen, sulfur, nitrogen, wherein the heterocyclic ring may further be substituted with halogen, alkyl, arylalkyl.

1, 2, 4-triazole derivatives and their anti mycobacterial activity

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Arshad Khan