Synthesis of 3-(3-aryl-pyrrolidin-1-yl)-5-aryl-1,2,4-triazines that have antibacterial activity and also inhibit inorganic pyrophosphatase
作者:Wei Lv、Biplab Banerjee、Katrina L. Molland、Mohamed N. Seleem、Adil Ghafoor、Maha I. Hamed、Baojie Wan、Scott G. Franzblau、Andrew D. Mesecar、Mark Cushman
DOI:10.1016/j.bmc.2013.11.011
日期:2014.1
Inorganic pyrophosphatases are potential targets for the development of novel antibacterial agents. A pyrophosphatase-coupled high-throughput screening assay intended to detect o-succinyl benzoic acid coenzyme A (OSB CoA) synthetaseinhibitors led to the unexpected discovery of a new series of novel inorganic pyrophosphatase inhibitors. Lead optimization studies resulted in a series of 3-(3-aryl-p
无机焦磷酸酶是开发新型抗菌剂的潜在靶点。旨在检测邻琥珀酰苯甲酸辅酶 A (OSB CoA) 合成酶抑制剂的焦磷酸酶偶联高通量筛选试验意外发现了一系列新的新型无机焦磷酸酶抑制剂。先导优化研究产生了一系列通过有效合成途径制备的 3-(3-aryl-pyrrolidin-1-yl)-5-aryl-1,2,4-triazine 衍生物。其中一种四环三嗪类似物22h显示出对多种耐药金黄色葡萄球菌菌株的有希望的抗生素活性,以及对结核分枝杆菌和炭疽芽孢杆菌,浓度对哺乳动物细胞无细胞毒性。
Polysubstituted 2,3-dihydrofuro[2,3-b]pyridines and 3,4-dihydro-2H-pyrano[2,3-b]pyridines via microwave-activated inverse electron demand Diels–Alder reactions
3-dihydrofuro[2,3-b]pyridines and 3,4-dihydro-2H-pyrano[2,3-b]pyridines have been synthesized from 1,2,4-triazines using the inverseelectronDiels–Alderreaction. For this purpose, 3-methylsulfanyl-1,2,4-triazines were reacted with several nucleophiles allowing the formation of appropriately substituted alkynes to undergo the intramolecularinverseelectrondemandDiels–Alderreaction. Sealed-tube microwave
多聚2,3-二氢呋喃[2,3- b ]吡啶和3,4-二氢-2 H-吡喃并[2,3- b ]吡啶是由1,2,4-三嗪使用逆电子狄尔斯合成的。 der木反应。为此,使3-甲基硫烷基-1,2,4-三嗪与几种亲核试剂反应,使形成适当取代的炔烃进行分子内电子逆需求Diels-Alder反应。事实证明,环加成反应的密封管微波活化非常有效,并且反应时间更短。该策略使得能够有效合成3-羟基-2,3-二氢呋喃[2,3- b ]吡啶和4-羟基-3,4-二氢-2 H-吡喃并[2,3- b双环支架上具有多个多样性点的]吡啶。
Synthesis of 3,4-dihydro-1,8-naphthyridin-2(1<i>H</i>)-ones via microwave-activated inverse electron-demand Diels–Alder reactions
8-naphthyridin-2(1H)-ones have been synthesized with the inverseelectron-demandDiels-Alderreaction from 1,2,4-triazines bearing an acylamino group with a terminal alkyne side chain. Alkynes were first subjected to the Sonogashira cross-coupling reaction with aryl halides, the product of which then underwent an intramolecularinverseelectron-demandDiels-Alderreaction to yield 5-aryl-3,4-dihydro-1,8-naphthyridin-2(1H)-ones
Intramolecular diels-alder reactions of 1,2,4-triazines.
作者:Edward C. Taylor、John E. Macor、Joseph L. Pont
DOI:10.1016/s0040-4020(01)87690-0
日期:1987.1
IntramolecularinverseelectrondemandDiels-Alderreactions of 1,2,4-triazines have been effectively utilized for the synthesis of furo[2,3-b] pyridines, 2,3-dihydropyrano[2,3-b]pyridines, and 2,3-dihydropyrrolo-[2,3-b]pyridines.
Intramolecular Diels-Alder reactions of 1,2,4-triazines: Exploitation of the Thorpe-Ingold effect for the synthesis of 2,3-cyclopentenopyridines and 5,6,7,8-tetrahydroquinolines
作者:Edward C. Taylor、John E. Macor
DOI:10.1016/s0040-4039(00)84460-3
日期:1986.1
Intramolecularinverseelectron-demandDiels-Alderreactions of 1,2,4-triazines assisted by the Thorpe-Ingold effect have been utilized in novel syntheses of 2,3-cyclopentenopyridines and 5,6,7,8-tetrahydroquinolines.