반응식
[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]2[O:12][C:11](=[O:13])[N:10]([CH:14]([CH3:28])[CH2:15]C3CCC4OCC(=O)CC=4OC3)[CH2:9]2)[CH:5]=[CH:6][CH:7]=1.[BH4-].[Na+].[OH2:31].Cl.[CH3:33][OH:34]>>[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]2[O:12][C:11](=[O:13])[N:10]([CH:14]([CH3:28])[CH2:15][CH:9]3[O:34][C:33]4[CH2:5][CH2:6][CH2:7][CH2:2][O:31][C:3]=4[CH:4]=[C:8]3[OH:12])[CH2:9]2)[CH:5]=[CH:6][CH:7]=1참가 물질
실험 절차
One equivalent of 5-(3-chlorophenyl)-3-(2-(3,4-dihydroxyphenyl)-1-methylethyl)-2-oxazolidinone, prepared by the procedure of U.S. Pat. No. 5,061,727 Example 1, is treated with one equivalent of 1,3-dibromoacetone and excess potassium carbonate in acetonitrile. The mixture is stirred at room temperature for 18 hours, filtered and evaporated in vacuo to give 7-(2-(5-(3-chlorophenyl)-2-oxo-3-oxazolidinyl)propyl)-1,5-dioxabenzocycloheptan-3-one. One equivalent of this ketone is reduced, at room temperature for one hour, with excess sodium borohydride in methyl alcohol. The reaction mixture is poured into water, made acidic with 1N hydrochloric acid and extracted with methylene chloride. The organic extracts are dried and evaporated in vacuo to give 7-(2-(5-(3-chlorophenyl)-2-oxo-3-oxazolidinyl)propyl-1,5-dioxabenzocycloheptan-3-ol. Hydrolysis with 2.5N sodium hydroxide gives the title compound.
후처리
- extractionextracted with methylene chloride
- customThe organic extracts are dried
- customevaporated in vacuo
출처 및 근거
- ORD 기록
- ord-12b1efd400d64ec79bd3db4ca9efa5c8
- 출처 데이터셋
- uspto-grants-1996_01
- 특허 번호
- US05482971
연결된 노트
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