The chemistry of 2<i>H</i>-3,1-benzoxazine-2,4(1<i>H</i>)dione (isatoic anhydrides) 1. The synthesis of<i>N</i>-substituted 2<i>H</i>-3,1-benzoxazine-2,4(1<i>H</i>)diones
作者:Goetz E. Hardtmann、Gabor Koletar、Oskar R. Pfister
DOI:10.1002/jhet.5570120325
日期:1975.6
Three methods for the preparation of N-substituted 2H-3,1-benzoxazine-2,4(1H)diones (isatoicanhydrides) (1) utilizing 2-chloro-, 2-nitrobenzoic acids and N-unsubstituted isatoicanhydrides as starting materials, are described.
三种制备N-取代的2 H -3,1-苯并恶嗪-2,4(1 H)二酮(乙酸酐)的方法(1)使用2-氯-,2-硝基苯甲酸和N-未取代的等角酸酐作为制备方法描述了起始材料。
3-(1,1-Dioxo-2<i>H</i>-(1,2,4)-benzothiadiazin-3-yl)-4-hydroxy-2(1<i>H</i>)-quinolinones, Potent Inhibitors of Hepatitis C Virus RNA-Dependent RNA Polymerase
作者:Rosanna Tedesco、Antony N. Shaw、Ramesh Bambal、Deping Chai、Nestor O. Concha、Michael G. Darcy、Dashyant Dhanak、Duke M. Fitch、Adam Gates、Warren G. Gerhardt、Dina L. Halegoua、Chao Han、Glenn A. Hofmann、Victor K. Johnston、Arun C. Kaura、Nannan Liu、Richard M. Keenan、Juili Lin-Goerke、Robert T. Sarisky、Kenneth J. Wiggall、Michael N. Zimmerman、Kevin J. Duffy
DOI:10.1021/jm050855s
日期:2006.2.1
Recently, we disclosed a new class of HCV polymerase inhibitors discovered through high-throughput screening (HTS) of the GlaxoSmithKline proprietary compound collection. This interesting class of 3-(1,1-dioxo-2H-1,2,4-benzothiadiazin-3-yl)-4-hydroxy-2(1H)-quinolinones potently inhibits HCV polymerase enzymatic activity and inhibits the ability of the subgenomic HCV replicon to replicate in Huh-7 cells. This report will focus on the structure-activity relationships (SAR) of substituents on the quinolinone ring, culminating in the discovery of 1-(2-cyclopropylethyl)-3-(1,1-dioxo-2H-1,2,4-benzothiadiazin-3-yl)-6-fluoro-4-hydroxy-2(1H)-quinolinone (130), an inhibitor with excellent potency in biochemical and cellular assays possessing attractive molecular properties for advancement as a clinical candidate. The potential for development and safety assessment profile of compound 130 will also be discussed.
COPPOLA G. M.; HARDTMANN G. E., J. HETEROCYCL. CHEM., 1979, 16, NO 8, 1605-1610
作者:COPPOLA G. M.、 HARDTMANN G. E.
DOI:——
日期:——
HARDTMANN G. E.; KOLETAR G.; PFISTER O. R.; GOGERTY J. H.; IORIO L. C., J. MED. CHEM. <JMCM-AR>, 1975, 18, NO 5, 447-453
作者:HARDTMANN G. E.、 KOLETAR G.、 PFISTER O. R.、 GOGERTY J. H.、 IORIO L. C.
DOI:——
日期:——
The chemistry of 2<i>H</i>-3,1-benzoxazine-2,4(1<i>H</i>)-dione (Isatoic Anhydride).<b>19</b>. Direct formation of 2-aminobenzyl alcohols from the reduction of<i>N</i>-substituted isatoic anhydrides
作者:Gary M. Coppola
DOI:10.1002/jhet.5570230145
日期:1986.1
Isatoicanhydrides 1 are easily reduced with sodium borohydride to o-(substituted-amino)benzyl alcohols 3 in good yield. Sequential reduction of N-(2-nitrobenzyl)isatoicanhydride (5) with sodium borohydride followed by catalytic hydrogenation of the nitro group affords the naturally occurring 2-(2′-aminobenzylamino)-benzyl alcohol (4) in 72% yield.