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【结 构 式】 
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【分子编号】29406 【品名】2-(2-fluoro-4-nitrophenyl)-2H-1,2,3-triazole 【CA登记号】 |
【 分 子 式 】C8H5FN4O2 【 分 子 量 】208.1518632 【元素组成】C 46.16% H 2.42% F 9.13% N 26.92% O 15.37% |
合成路线1
该中间体在本合成路线中的序号：(IV)The reaction between 1,2,3-triazole (I) and 3,4-difluoronitrobenzene (II) afforded a mixture of two regioisomeric substituted triazoles (III) and (IV), from which the required 1-substituted isomer (III) was isolated by column chromatography. Reduction of the nitro group of (III) by hydrogenation over Raney-Ni gave aniline (V), which was converted to carbamate (VI) upon treatment with benzyl chloroformate. Subsequent condensation of (VI) with (R)-(-)-glycidyl butyrate (VII) in the presence of lithium bis(trimethylsilyl)amide produced the chiral oxazolidinone (VIII). Mesylation of the alcohol group of (VIII), followed by displacement with NaN3 yielded azide (IX). This was reduced by hydrogenation over Raney-Ni to give amine (X), which was finally acetylated using Ac2O and pyridine.
| 【1】 Emmert, D.E.; Reischer, R.J.; Ford, C.W.; Garmon, S.A.; Zurenko, G.E.; Barbachyn, M.R.; Hutchinson, D.K.; Stelzer, L.S.; Hester, J.B.; Synthesis and antibacterial activity of azolylphenyloxazolidinones having nitrogen-bound five-membered heterocyclic rings. 38th Intersci Conf Antimicrob Agents Chemother (Sept 24 1998, San Diego) 1998, Abst F-137. |
| 【2】 Hutchinson, D.K. (Pharmacia & Upjohn AB); Hetero-aromatic ring substd. phenyloxazolidinone antimicrobials. EP 0807112; JP 1998513446; US 5910504; WO 9623788 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| 10101 | Benzyloxycarbonyl chloride; Benzyl chloroformate; 1-[[(Chlorocarbonyl)oxy]methyl]benzene | 501-53-1 | C8H7ClO2 | 详情 | 详情 | |
| (I) | 29404 | 1H-1,2,3-triazole | 288-36-8 | C2H3N3 | 详情 | 详情 |
| (II) | 17013 | 1,2-difluoro-4-nitrobenzene; 3,4-Difluoronitrobenzene | 369-34-6 | C6H3F2NO2 | 详情 | 详情 |
| (III) | 29405 | 1-(2-fluoro-4-nitrophenyl)-1H-1,2,3-triazole | C8H5FN4O2 | 详情 | 详情 | |
| (IV) | 29406 | 2-(2-fluoro-4-nitrophenyl)-2H-1,2,3-triazole | C8H5FN4O2 | 详情 | 详情 | |
| (V) | 29407 | 3-fluoro-4-(1H-1,2,3-triazol-1-yl)phenylamine3-fluoro-4-(1H-1,2,3-triazol-1-yl)aniline | C8H7FN4 | 详情 | 详情 | |
| (VI) | 29408 | benzyl 3-fluoro-4-(1H-1,2,3-triazol-1-yl)phenylcarbamate | C16H13FN4O2 | 详情 | 详情 | |
| (VII) | 18385 | (2R)oxiranylmethyl butyrate;(R)-glycidyl butyrate | 60456-26-0 | C7H12O3 | 详情 | 详情 |
| (VIII) | 29409 | (5R)-3-[3-fluoro-4-(1H-1,2,3-triazol-1-yl)phenyl]-5-(hydroxymethyl)-1,3-oxazolidin-2-one | C12H11FN4O3 | 详情 | 详情 | |
| (IX) | 29410 | (5R)-5-(azidomethyl)-3-[3-fluoro-4-(1H-1,2,3-triazol-1-yl)phenyl]-1,3-oxazolidin-2-one | C12H10FN7O2 | 详情 | 详情 | |
| (X) | 29411 | (5S)-5-(aminomethyl)-3-[3-fluoro-4-(1H-1,2,3-triazol-1-yl)phenyl]-1,3-oxazolidin-2-one | C12H12FN5O2 | 详情 | 详情 |