Formation of furo[3,2-c]quinolone-2-carbonitriles and 4-oxo-4,5-dihydrofuro[3,2-c]quinolone-2-carboxamides from reaction of quinoline-2,4-diones with 2-[bis(methylthio)methylene]malononitrile
作者:Ashraf A. Aly、Esam A. Ishak、Ahmed M. Shwaky、Asmaa H. Mohamed
DOI:10.1007/s00706-019-02541-0
日期:2020.2
AbstractQuinoline-2,4-diones reacted with 2-[bis(methylthio)methylene]malononitrile in DMF/Et3N to produce 3-(methylthio)-4-oxo-4,5-dihydrofuro[3,2-c]quinolone-2-carbonitriles and 3-(methylthio)-4-oxo-4,5-dihydrofuro[3,2-c]quinolone-2-carboxamides in state of 2-imino-substituted 4-(methylthio)-5,6-dihydro-2H-pyrano[3,2-c]quinolone-3-carbonitriles. The structures of all new products were proved using NMR
摘要喹啉-2,4-二酮与2- [双(甲硫基)亚甲基]丙二腈在DMF / Et 3 N中反应生成3-(甲硫基)-4-氧代-4,5-二氢呋喃[3,2- c ]喹诺酮-2-腈和3-(甲硫基)-4-氧代-4,5-二氢呋喃[3,2 - c ]喹诺酮-2-羧酰胺处于2-亚氨基取代的4-(甲硫基)-5,6-的状态二氢-2 H-吡喃并[3,2 - c ]喹诺酮-3-腈。所有新产品的结构均使用NMR,IR和质谱数据证明。还讨论了反应的可能机理。 图形摘要
Regioselective synthesis of new 7,8-dichlorobenzofuro[3,2-<i>c</i>]quinoline-6,9,10(5<i>H</i>)-triones from reactions of 4-hydroxy-2-quinolones with 3,4,5,6-tetrachloro-1,2-benzoquinone
作者:Ashraf A Aly、Alaa A Hassan、Nasr K Mohamed、Lamiaa E Abd El-Haleem、Stefan Bräse
DOI:10.1177/1747519820902669
日期:2020.7
10(5H)-triones was obtained regioselectively in good yields. The products were formed by the reactions of the 4-hydroxy-2(1H)-quinolinones with 3,4,5,6-tetrachloro-1,2-benzoquinone in tetrahydrofuran as the solvent. Infrared, nuclear magnetic resonance (two-dimensional nuclear magnetic resonance), mass spectra and elemental analysis were used to elucidate the structures of new compounds.
Synthesis of New Fused Heterocyclic 2-Quinolones and 3-Alkanonyl-4-Hydroxy-2-Quinolones
作者:Ashraf A. Aly、Alaa A. Hassan、Nasr K. Mohamed、Lamiaa E. Abd El-Haleem、Stefan Bräse、Mika Polamo、Martin Nieger、Alan B. Brown
DOI:10.3390/molecules24203782
日期:——
Herein, we report the synthesis of 5,12-dihydropyrazino[2,3-c:5,6-c′]difuro[2,3-c:4,5-c′]-diquinoline-6,14(5H,12H)diones, 2-(4-hydroxy-2-oxo-1,2-dihydroquinolin-3-yl)-1,4-diphenyl- butane-1,4-diones and 4-(benzo-[d]oxazol-2-yl)-3-hydroxy-1H-[4,5]oxazolo[3,2-a]pyridine-1-one. The new candidates were synthesized and identified by different spectroscopic techniques, and X-ray crystallography.
在此,我们报道了 5,12-二氢吡嗪并[2,3-c:5,6-c']二呋喃[2,3-c:4,5-c']-diquinoline-6,14(5H, 12H)二酮、2-(4-羟基-2-氧代-1,2-二氢喹啉-3-基)-1,4-二苯基-丁烷-1,4-二酮和4-(苯并-[d]恶唑- 2-基)-3-羟基-1H-[4,5]恶唑并[3,2-a]吡啶-1-one。新的候选物是通过不同的光谱技术和 X 射线晶体学合成和鉴定的。
Heteroaryl substituted quinolin-4-ylamine analogues of Formula I are provided.
Such compounds are ligands that may be used to modulate specific receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological receptor activation in humans, domesticated companion animals and livestock animals. Pharmaceutical compositions and methods for using such compounds to treat such disorders are provided, as are methods for using such ligands for receptor localization studies.
Substituted quinolin-4-ylamine analogues are provided. Such compounds are ligands that may be used to modulate specific receptor activity in vivo or in vitro, and are particularly useful in the treatment of conditions associated with pathological receptor activation in humans, domesticated companion animals and livestock animals. Pharmaceutical compositions and methods for using them to treat such disorders are provided, as are methods for using such ligands for receptor localization studies.