3,3′-Disubstituted 5,5′-Bi(1,2,4-triazine) Derivatives with Potent in Vitro and in Vivo Antimalarial Activity
作者:Lian Xue、Da-Hua Shi、Jitendra R. Harjani、Fei Huang、Julia G. Beveridge、Tamir Dingjan、Kung Ban、Sarah Diab、Sandra Duffy、Leonardo Lucantoni、Sabine Fletcher、Francis C. K. Chiu、Scott Blundell、Katherine Ellis、Stuart A. Ralph、Grennady Wirjanata、Silvia Teguh、Rintis Noviyanti、Marina Chavchich、Darren Creek、Ric N. Price、Jutta Marfurt、Susan A. Charman、Matthew E. Cuellar、Jessica M. Strasser、Jayme L. Dahlin、Michael A. Walters、Michael D. Edstein、Vicky M. Avery、Jonathan B. Baell
DOI:10.1021/acs.jmedchem.8b01799
日期:2019.3.14
A series of 3,3'-disubstituted5,5'-bi(1,2,4-triazine) derivatives was synthesized and screened against the erythrocytic stage of Plasmodium falciparum 3D7 line. The most potent dimer, 6k, with an IC50 (50% inhibitory concentration) of 0.008 μM, had high in vitro potency against P. falciparum lines resistant to chloroquine (W2, IC50 = 0.0047 ± 0.0011 μM) and artemisinin (MRA1240, IC50 = 0.0086 ± 0
Discovery of Potent and Fast-Acting Antimalarial Bis-1,2,4-triazines
作者:Daniel L. Priebbenow、Mitch Mathiew、Da-Hua Shi、Jitendra R. Harjani、Julia G. Beveridge、Marina Chavchich、Michael D. Edstein、Sandra Duffy、Vicky M. Avery、Robert T. Jacobs、Stephen Brand、David M. Shackleford、Wen Wang、Longjin Zhong、Given Lee、Erin Tay、Helena Barker、Elly Crighton、Karen L. White、Susan A. Charman、Amanda De Paoli、Darren J. Creek、Jonathan B. Baell
DOI:10.1021/acs.jmedchem.1c00044
日期:2021.4.8
potent in vitro activityagainstPlasmodium falciparum parasites were recently discovered. To improve the pharmacokinetic properties of the triazine derivatives, a new structure–activity relationship (SAR) investigation was initiated with a focus on enhancing the metabolic stability of lead compounds. These efforts led to the identification of second-generation highly potent antimalarial bis-triazines
A Direct Route to 6,6’-Disubstituted-2,2’-Bipyridines by Double Diels-Alder/retro Diels-Alder Reaction of 5,5’-bi-1,2,4-Triazines
作者:D. Branowska
DOI:10.3390/10010274
日期:——
Inverse electron demand Diels-Alder reaction of functionalized 5,5’-bi-1,2,4- triazines with bicyclo[2.2.1]hepta-2,5-diene in boiling p-cymene leads to a range of 6,6’- disubstituted-2,2’-bipyridines in good yield.
Synthesis of 3-(Alkylamino)-, 3-(Alkoxy)-, 3-(Aryloxy)-, 3-(Alkylthio)-, and 3-(Arylthio)-1,2,4-triazines by Using a Unified Route with 3-(Methylsulfonyl)-1,2,4-triazine
作者:Da-Hua Shi、Jitendra R. Harjani、Robert W. Gable、Jonathan B. Baell
DOI:10.1002/ejoc.201600267
日期:2016.6
3-(methylsulfonyl)-1,2,4 triazine was also optimized. The reactivity of 3-(methylsulfonyl)-1,2,4-triazine towards alkyl and aryl thiols, primary and secondary alkylamines, phenols, and alcohols was explored, and the reactions were optimized to maximize the isolation of the corresponding 3-substituted 1,2,4-triazine. Good yields were obtained for the products of the reactions with all of the aforementioned nucleophiles