4413-42-7Relevant academic research and scientific papers
Synthesis and?studies on?some?new fluorine containing triazolothiadiazines as?possible antibacterial, antifungal and?anticancer agents
Shivarama Holla,Sooryanarayana Rao,Sarojini,Akberali,Suchetha Kumari
, p. 657 - 663 (2007/10/03)
Synthesis of a series of 7-arylidene-6-(2,4-dichlorophenyl)-3-aryloxymethyl/anilinomethyl-1,2,4-t riazolo[3,4-b]-1,3,4-thiadiazines (3) by the condensation of 3-aryl-1-(2,4-dichloro-5-fluorophenyl)-2-bromo-propen-1-one (1) and 4-amino-5-mercapto-3-aryloxy
Synthesis of some new 1,2,4-triazolo[3,4-b]-thiadiazole derivatives as possible anticancer agents
Subrahmanya Bhat,Jagadeesh Prasad,Poojary, Boja,Shivarama Holla
, p. 1595 - 1603 (2007/10/03)
3-Substituted-4-amino-5-mercapto-1,2,4-triazoles are versatile synthons for constructing various biologically active heterocycles. Their cyclization with carboxylic acids gives fused five-membered derivatives, whereas with α-bromoketones gives a six-membered heterocycle. In this article we report the synthesis of a series of 1,2,4-triazolo[3,4-b]thiadiazoles 5 starting from 4-amino-3-substituted-5-mercapto-1,2,4-triazoles 3 and fluorobenzoic acids 4 using phosphorous oxychloride as cyclizing agent. Fourteen of the newly synthesized compounds were screened for anticancer properties. Four among them showed in vitro anticancer activity.
Synthesis and antibacterial activity of N-bridged heterocycles derived from aryloxymethyltriazoles
Shivarama Holla,Shridhara,Shivananda
, p. 1257 - 1262 (2007/10/03)
Reactions of 3-aryloxymethyl-4-amino-5-mercapto-1,2,4-triazoles 1 with aromatic carboxylic acids, furoic acid, oxalic acid, monochloroacetic acid and phenacyl bromide furnish various N-bridged heterocycles viz., triazolothiadiazoles, bistriazolothiadiazoles, triazolothiadiazinones and triazolothiadiazines. The structures of these N-bridged heterocycles are characterized on the basis of elemental analyses, IR, NMR and mass spectral data. Some of these compounds are also subjected to antibacterial screening studies.
Synthesis of Some Substituted 4-(5-Nitro-2-furfurylideneamino)-5-mercapto-1,2,4-triazoles and 7H-6-(5-Nitro-2-furyl)-s-triazolothiadiazines
Holla, B. Shivarama,Kalluraya, Balakrishna
, p. 683 - 685 (2007/10/02)
Seven 4-amino-3-aryloxymethyl-5-mercapto-1,2,4-triazoles (1a-g) have been synthesized and converted into 3-aryloxymethyl-4-(5-nitro-2-furfurylideneamino)-5-mercapto-1,2,4-triazoles (2a-g) and 7H-3-aryloxymethyl-6-(5-nitro-2-furyl)-s-triazolothiadiazines (3a-g).Most of the compounds of series 2 and 3 have been found to be active against both gram positive and gram negative bacteria at less than 5μg ml concentration.
