Methyl iodide → (4S,5S)-4-methyl5-phenyl-3-[(S)-2-(2-methoxyphenyl)propionyl]2-oxazolidinone

HRID 375423노트

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HRID 375423 반응식
[CH3:1][C@H:2]1[C@H:6]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[O:5][C:4](=[O:13])[N:3]1[C:14](=[O:24])[CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1[O:22][CH3:23].[CH3:25]I>O1CCCC1.C(OCC)(=O)C>[CH3:1][C@H:2]1[C@H:6]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)[O:5][C:4](=[O:13])[N:3]1[C:14](=[O:24])[C@H:15]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1[O:22][CH3:23])[CH3:25]

참가 물질

5

반응물 2

HCID 6328Methyl iodideHCID 57297643(4S,5S)-4-methyl5-Phenyl-3-(2-methoxyphenylacetyl)-2-oxazolidinone

생성물 1

HCID 54310187(4S,5S)-4-methyl5-phenyl-3-[(S)-2-(2-methoxyphenyl)propionyl]2-oxazolidinone

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 8857Ethyl Acetate용매

실험 절차

19.1 g of sodium 1,1,1,3,3,3-hexamethyldisilazanate are added to a solution, cooled to -50° C., of 10 g of (4S,5S)-4-methyl-5-phenyl-3-[(2-methoxyphenyl)acetyl]oxazolidin-2-one in 150 cm3 of tetrahydrofuran, the mixture is stirred at this temperature for 45 minutes and 7.72 cm3 of methyl iodide are then added. The reaction mixture is then stirred at room temperature for 15 hours, subsequently diluted with ethyl acetate, washed with 50 cm2 of water and then with 50 cm3 of an aqueous saturated solution of sodium chloride, dried over magnesium sulphate and concentrated to dryness under reduced pressure (2.7 kPa). The residue obtained is crystallized in isopropyl ether, filtered off and dried. 4.2 g of (4S,5S)-4-methyl-5-phenyl-3-[(S)-2-(2-methoxyphenyl)propionyl]oxazolidin-2-one are obtained in the form of a white solid.

후처리

  1. stirringThe reaction mixture is then stirred at room temperature for 15 hours
  2. washwashed with 50 cm2 of water
  3. dry with materialwith 50 cm3 of an aqueous saturated solution of sodium chloride, dried over magnesium sulphate
  4. concentrationconcentrated to dryness under reduced pressure (2.7 kPa)
  5. customThe residue obtained
  6. customis crystallized in isopropyl ether
  7. filtrationfiltered off
  8. customdried

출처 및 근거

ORD 기록
ord-21b2efd0dfc24eedb932fd6444ef9f28
출처 데이터셋
uspto-grants-1996_01
특허 번호
US05484804

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