常规情况下不会分解,没有危险反应。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-羟基-3-硝基香豆素 | 4-hydroxy-3-nitrocoumarin | 20261-31-8 | C9H5NO5 | 207.142 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-氨基-3-硝基-2H-苯并吡喃-2-酮 | 4-amino-3-nitro-2H-chromen-2-one | 38464-21-0 | C9H6N2O4 | 206.158 |
—— | 4-iodo-3-nitrocoumarin | 88353-30-4 | C9H4INO4 | 317.04 |
4-羟基-3-硝基香豆素 | 4-hydroxy-3-nitrocoumarin | 20261-31-8 | C9H5NO5 | 207.142 |
—— | 4-hydrazino-3-nitrocoumarin | 88353-29-1 | C9H7N3O4 | 221.172 |
—— | 4-methoxy-3-nitrocoumarin | 88353-18-8 | C10H7NO5 | 221.169 |
—— | 4-azido-3-nitrocoumarin | 88363-17-1 | C9H4N4O4 | 232.155 |
—— | 4-Ethylamino-3-nitrocoumarin | 87236-29-1 | C11H10N2O4 | 234.211 |
—— | 4-Allylamino-3-nitrocoumarin | 87236-30-4 | C12H10N2O4 | 246.222 |
—— | 4-(2-chlorethylamino)-3-nitrocoumarin | 88353-35-9 | C11H9ClN2O4 | 268.656 |
—— | 4-ethoxy-3-nitrocoumarin | 88353-19-9 | C11H9NO5 | 235.196 |
—— | 4-Isopropylamino-3-nitrocoumarin | 87236-31-5 | C12H12N2O4 | 248.238 |
—— | 3-anilino-4-nitrocoumarin | 50527-30-5 | C15H10N2O4 | 282.255 |
—— | 4-(2-hydroxyethylamino)-3-nitrocoumarin | 88353-20-2 | C11H10N2O5 | 250.211 |
—— | 4-Ethylsulfanyl-3-nitro-chromen-2-one | 131814-92-1 | C11H9NO4S | 251.263 |
—— | 4-[(4-iodophenyl)amino]-3-nitro-2H-chromen-2-one | 675132-10-2 | C15H9IN2O4 | 408.152 |
—— | 4-(tert-butylamino)-3-nitro-2H-chromen-2-one | 50527-28-1 | C13H14N2O4 | 262.265 |
—— | 4-(butylamino)-3-nitro-2H-chromen-2-one | 50527-27-0 | C13H14N2O4 | 262.265 |
—— | 4-(3-hydroxypropylamino)-3-nitro-2H-chromen-2-one | —— | C12H12N2O5 | 264.238 |
—— | 4-((2-aminophenyl)amino)-3-nitro-2H-chromen-2-one | —— | C15H11N3O4 | 297.27 |
4-(萘-1-基氨基)-3-硝基色烯-2-酮 | 4-(1-naphthylamino)-3-nitrocoumarin | 88353-27-9 | C19H12N2O4 | 332.315 |
—— | bis(3-nitro-4-coumarinyl) sulfide | 142078-49-7 | C18H8N2O8S | 412.336 |
—— | 4-(β-naphtylamino)-3-nitro-2H-[1]-benzopyran-2-one | 676244-60-3 | C19H12N2O4 | 332.315 |
—— | N-(3-nitrocoumarin-4-yl)-4-aminobutyric acid | —— | C13H12N2O6 | 292.248 |
—— | 3-nitro-4-phenylselanyl-2H-chromen-2-one | 1196701-37-7 | C15H9NO4Se | 346.201 |
—— | N-(3-nitrocoumarin-4-yl)glycine | 78795-04-7 | C11H8N2O6 | 264.194 |
—— | 4-(sec-butylamino)-3-nitro-2H-chromen-2-one | —— | C13H14N2O4 | 262.265 |
—— | 3-nitro-4-p-tolylaminocoumarin | 88353-24-6 | C16H12N2O4 | 296.282 |
—— | S,S'-bis(3-nitro-2H-1-benzopyran-2-on-4-yl)-1,4-butanedithiol | —— | C22H16N2O8S2 | 500.51 |
—— | 4-(3,3-dimethyl-n-but-1-ynyl)-3-nitrocoumarin | 1202395-42-3 | C15H13NO4 | 271.273 |
—— | 3-nitro-4-phenoxy-2H-1-benzopyran-2-one | 139722-41-1 | C15H9NO5 | 283.24 |
—— | 4-(4-methoxyphenylamino)-3-nitrocoumarin | 88353-25-7 | C16H12N2O5 | 312.282 |
—— | 4-(4-mercaptobutylthio)-3-nitro-2H-1-benzopyran-2-one | —— | C13H13NO4S2 | 311.383 |
—— | 3-nitro-4-[(3-nitrophenyl)amino]-2H-chromen-2-one | 1326774-72-4 | C15H9N3O6 | 327.253 |
—— | 4-(4-acetylaminophenylamino)-3-nitrocoumarin | 88353-26-8 | C17H13N3O5 | 339.307 |
—— | 4-(4-cyanophenylamino)-3-nitrocoumarin | 88353-28-0 | C16H9N3O4 | 307.265 |
—— | 4-(2-hydroxyphenylamino)-3-nitro-2H-1-benzopyran-2-one | —— | C15H10N2O5 | 298.255 |
—— | 3-nitro-4-S-benzylcoumarin | 88369-11-3 | C16H11NO4S | 313.334 |
—— | 4-(benzylamino)-3-nitro-2H-chromen-2-one | 50527-29-2 | C16H12N2O4 | 296.282 |
—— | 4-Cyclopentylamino-3-nitrocoumarin | 87236-32-6 | C14H14N2O4 | 274.276 |
—— | N-(3-nitrocoumarin-4-yl)glycine ethyl ester | 78795-03-6 | C13H12N2O6 | 292.248 |
—— | 4-Cyclohexylamino-3-nitrocumarin | 56962-68-6 | C15H16N2O4 | 288.303 |
—— | 4-[(2-methylphenyl)amino]-3-nitro-2H-chromen-2-one | 312927-53-0 | C16H12N2O4 | 296.282 |
—— | 3-nitro-4-(2-hydroxyphenylthio)-2H-1-benzopyran-2-one | —— | C15H9NO5S | 315.306 |
—— | 4-((trimethylsilyl)ethynyl)-3-nitrocoumarin | 1202395-43-4 | C14H13NO4Si | 287.347 |
—— | 4-bis(2-chloroethylamino)-3-nitrocoumarin | 88353-23-5 | C13H12Cl2N2O4 | 331.155 |
—— | 3-Nitro-4-(2-phenylamino-ethylsulfanyl)-chromen-2-one | —— | C17H14N2O4S | 342.375 |
—— | 4-[(4-acetylphenyl)amino]-3-nitrocoumarin | —— | C17H12N2O5 | 324.293 |
—— | 4-(furan-2-ylmethylamino)-3-nitro-2H-chromen-2-one | —— | C14H10N2O5 | 286.244 |
—— | 3-nitro-4-(3-pyridylmethylamino)coumarin | 88353-22-4 | C15H11N3O4 | 297.27 |
—— | N-(3-nitrocoumarin-4-yl)-DL-α-alanine ethyl ester | 78795-05-8 | C14H14N2O6 | 306.275 |
4-吗啉-4-基-3-硝基-2H-苯并吡喃-2-基 | 4-morpholin-4-yl-3-nitro-chromen-2-one | 50527-34-9 | C13H12N2O5 | 276.249 |
—— | 3-nitro-4-coumarinyl N-phenyldithiocarbamate | 142078-48-6 | C16H10N2O4S2 | 358.398 |
—— | 3-nitro-4-S-(o-carboxyphenyl)coumarin | 132067-77-7 | C16H9NO6S | 343.317 |
—— | 3-nitro-4-(2-pyridylamino)coumarin | 56962-67-5 | C14H9N3O4 | 283.243 |
—— | (S)-3-nitro-4-((1-phenylethyl)amino)coumarin | —— | C17H14N2O4 | 310.309 |
—— | 3-nitro-4-(2-carboxyphenyl)coumarin | 87024-58-6 | C16H10N2O6 | 326.265 |
—— | 2-(3-Nitro-2-oxo-2H-chromen-4-ylamino)-benzamide | 127654-32-4 | C16H11N3O5 | 325.28 |
Due to a confirmed antimicrobial activity of both natural and synthetic coumarin derivatives, the present study was envisaged to provide a further insight into the antimicrobial potential of coumarins through a screening of a designed library of nine 4-(alkylamino)-3-nitrocoumarins against a panel of 24 laboratory strains and resistant (isolates) bacterial and fungal pathogens. All compounds showed some degree of strain-selective activity, that was, in some cases, very pronounced, reaching the value of 0.04 nmol/ml (i.e. 12 ng/ml) for the minimal inhibitory concentration against Candida albicans. The observed activity was higher against Gram-negative strains, among which the most susceptible strain, among both ATCC strains and clinical isolates, was Salmonella enteritidis. These results point out to a high potential of these coumarins as antimicrobials for the treatment of gastrointestinal and other infections caused by highly resistant microbial strains. Finally, a multivariate statistical analysis of the herein obtained and previous results on the antimicrobial activity of related selected coumarins was performed to allow an easier structure-activity discussion.
A series of new coumarin derivatives has been synthesized by condensation of 4-chloro-3-nitrocoumarin and the appropriate arylamine and sulfonamide in ethyl acetate in the presence of triethylamine. The synthesized compounds were screened for their in vitro antimicrobial activity against thirteen strains of bacteria and three fungal/yeast strains using disk diffusion assays. They were shown to possess a wide range of activities from almost completely inactive compounds to medium active ones. (4-[(5-Chloropyridin-2-yl)amino]-3-nitro-2H-chromen-2-one) showed similar activity against Klebsiella pneumoniae as tetracycline.