中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ethyl 7-azido-1-cyclopropyl-6-fluoro-8-nitro-4-oxo-1,4-dihydroquinoline-3-carboxylate | 905966-59-8 | C15H12FN5O5 | 361.289 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ethyl 9-cyclopropyl-4-fluoro-6-oxo-2-(2,4,6-trioxotetrahydropyrimidin-5(6H)-ylidene)-2,3,6,9-tetrahydro-1H-imidazo[4,5-h]quinoline-7-carboxylate | 1605321-89-8 | C20H16FN5O6 | 441.375 |
—— | ethyl 9-cyclopropyl-2-(1,3-dimethyl-2,4,6-trioxotetrahydropyrimidin-5(6H)-ylidene)-4-fluoro-6-oxo-2,3,6,9-tetrahydro-1H-imidazo[4,5-h]quinoline-7-carboxylate | 1605321-90-1 | C22H20FN5O6 | 469.429 |
—— | ethyl 9-cyclopropyl-4-fluoro-6-oxo-6,9-dihydro-1H-imidazo[4,5-h]quinoline-7-carboxylate | 1177374-40-1 | C16H14FN3O3 | 315.304 |
—— | ethyl 9-cyclopropyl-4-fluoro-6-oxo-2-phenyl-6,9-dihydro-1H-imidazo[4,5-h]quinoline-7-carboxylate | 1177374-43-4 | C22H18FN3O3 | 391.402 |
—— | ethyl 1-cyclopropyl-6-fluoro-8-methyl-4-oxo-4,8-dihydro-1H-indolo[2,3-b]pyrido[2,3-f]quinoxaline-3-carboxylate | 1137516-05-2 | C24H19FN4O3 | 430.438 |
—— | ethyl 1-cyclopropyl-6-fluoro-12-methyl-4-oxo-4,12-dihydro-1H-indolo[2,3-b]pyrido[2,3-f]quinoxaline-3-carboxylate | 1137516-07-4 | C24H19FN4O3 | 430.438 |
—— | ethyl 10-cyclopropyl-5-fluoro-2-methyl-3-[(4-methylphenyl)diazenyl]-7-oxo-7,10-dihydropyrido[2,3-f]quinoxaline-8-carboxylate | 1024036-19-8 | C25H22FN5O3 | 459.48 |
—— | ethyl 3-[(4-chlorophenyl)diazenyl]-10-cyclopropyl-5-fluoro-2-methyl-7-oxo-7,10-dihydropyrido[2,3-f]quinoxaline-8-carboxylate | 1024036-22-3 | C24H19ClFN5O3 | 479.898 |
—— | ethyl 10-cyclopropyl-5-fluoro-7-oxo-2,3-di(pyridin-2-yl)-7,10-dihydropyrido[2,3-f]quinoxaline-8-carboxylate | 1122575-46-5 | C27H20FN5O3 | 481.486 |
—— | ethyl 10-cyclopropyl-5-fluoro-7-oxo-2,3-di(thien-2-yl)-7,10-dihydropyrido[2,3-f]quinoxaline-8-carboxylate | 1122575-44-3 | C25H18FN3O3S2 | 491.567 |
Ethyl 7,8-diamino-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate (6) and its free acid 7 are prepared by chemical reduction of the respective 7-azido-8-nitroquinoline 5. Consecutive nucleophilic addition and cyclocondensation reactions of 6 with α-acetyl-N-arylhydrazonoyl chlorides 8a - c in ethanol and triethylamine are site-selective and yield the corresponding 3-(aryldiazinyl)- 2-methylpyrido[2,3- f ]quinoxalines 10a - c. Analytical and spectral (IR, MS, NMR) data of 6, 7, and 10a - c are in conformity with the assigned structures.