2.6- Dioxo-5-nitro

Purines, N-alkyl-N-phenyl-synthesis, 5, 576 Purines, alkylthio-hydrolysis, 5, 560 Mannich reaction, 5, 536 Michael addition reactions, 5, 536 Purines, S-alkylthio-hydrolysis, 5, 560 Purines, amino-alkylation, 5, 530, 551 IR spectra, 5, 518 reactions, 5, 551-553 with diazonium ions, 5, 538 reduction, 5, 541 UV spectra, 5, 517 Purines, N-amino-synthesis, 5, 595 Purines, aminohydroxy-hydrogenation, 5, 555 reactions, 5, 555 Purines, aminooxo-reactions, 5, 557 thiation, 5, 557 Purines, bromo-synthesis, 5, 557 Purines, chloro-synthesis, 5, 573 Purines, cyano-reactions, 5, 550 Purines, dialkoxy-rearrangement, 5, 558 Purines, diazoreactions, 5, 96 Purines, dioxo-alkylation, 5, 532 Purines, N-glycosyl-, 5, 536 Purines, halo-N-alkylation, 5, 529 hydrogenolysis, 5, 562 reactions, 5, 561-562, 564 with alkoxides, 5, 563 synthesis, 5, 556 Purines, hydrazino-reactions, 5, 553 Purines, hydroxyamino-reactions, 5, 556 Purines, 8-lithiotrimethylsilyl-nucleosides alkylation, 5, 537 Purines, N-methyl-magnetic circular dichroism, 5, 523 Purines, methylthio-bromination, 5, 559 Purines, nitro-reactions, 5, 550, 551 Purines, oxo-alkylation, 5, 532 amination, 5, 557 dipole moments, 5, 522 H NMR, 5, 512 pJfa, 5, 524 reactions, 5, 556-557 with diazonium ions, 5, 538 reduction, 5, 541 thiation, 5, 557 Purines, oxohydro-IR spectra, 5, 518 Purines, selenoxo-synthesis, 5, 597 Purines, thio-acylation, 5, 559 alkylation, 5, 559 Purines, thioxo-acetylation, 5, 559... [Pg.761]

A solution of 27.6 g (0.16 mol) of freshly distilled ethyl 7-aminoheptanoate in 40 ml of nitro-methane was added all at once and with mechanical stirring to a suspension of 26.2 g (0.08 mol) of 5,8-dichloro-10-dioxo-11 -methyldibenzo[c,f] thiazepined, 2) in 1 20 ml of nitro-methane. The whole was heated to 55°C for 30 minutes, the solvent was then evaporated in vacuo and the residue was taken up in water. The crude ester was extracted with ether. After evaporation of the ether 36 g of crude ester were obtained, and 30 g (0.065 mol) thereof were treated under reflux with a solution of 2.8 g (0.07 mol) of sodium hydroxide in 75 ml of eth-... [Pg.1476]

Beim 6a- und 6/i-Nitro-3-oxo-cholesten-(4) entfallt dagegen die Stabilisierung des Oxims, so daB unter den ublichen Reaktionsbedingungen direkt das 3,6-Dioxo-5a-chole-stan2 (F 171-172°) erhalten wird ... [Pg.521]

Methyl 6-methyl-7-nitro-2,3-dioxo-1,2,3,4-tetrahydro-5-quinoxalinecarboxylate gave methyl 2,3-dichloro-6-methyl-7-nitro-5-quinoxalinecarboxylate (27)... [Pg.139]

Methyl 6-methyl-2,3-dioxo-l,2,3,4-tetrahydro-5-quinoxalinecarboxylate (18, R = H) gave its 7-nitro derivative (18, R = NO2) (KNO3, 95% H2SO4,... [Pg.258]

Methyl-3-morpholinoquinoxaline 6-Methyl-3-morpholino-2(177)-quinoxalinone 6-Methyl-2/3-(2-morpholinovinyl)quinoxaline 6-Methyl-7-nitr o-2,3-dioxo, 1,2,3,4-tetrahydro-5-quinoxalinecarboxylic acid 2-Methyl-6-nitro-3-phenylquinoxaline... [Pg.421]

The quinoxalinedione derivatives 6-cyano-7-nitroquinoxaline (CNQX), 6,7-dinitro-quinoxaline-2,3-dione (DNQX), and 2,3-dioxo-6-nitro-l,2,3,4-tetrahydrobenzo[f]quinox-aline-7-sulphonamide (NBQX) are potent competitive antagonists of AMPA and kainate receptors. Of these, NBQX shows the most functional selectivity (approximately threefold) for AMPA over KA receptors (45), and has been used in low concentrations (1 pM) to isolate kainate currents in hippocampal interneurons (46). [Pg.30]

H, 0 0 H5C2 CO konz. konz. 0-3 2,5-Dioxo-7-nitro-3,4-dihydro-lH-1.3-bertzodiazepin 60 260 (DMF/ Methanol) 2... [Pg.287]

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