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Bicarbonate Ion → Methanesulfonic acid 1-(5-{4-[(4S,5R)-3-(2,2-difluoro-acetyl)-4-fluoromethyl-2,2-dimethyl-oxazolidin-5-yl]-phenyl}-pyridin-2-yl)-ethyl ester

HRID 1520503
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HRID 1520503 반응식
[F:1][CH:2]([F:29])[C:3]([N:5]1[C@H:9]([CH2:10][F:11])[C@@H:8]([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[CH:19]=[N:20][C:21]([CH:24]([OH:26])[CH3:25])=[CH:22][CH:23]=3)=[CH:14][CH:13]=2)[O:7][C:6]1([CH3:28])[CH3:27])=[O:4].C(N(CC)CC)C.[CH3:37][S:38](Cl)(=[O:40])=[O:39].C(=O)(O)[O-]>C(Cl)Cl>[F:29][CH:2]([F:1])[C:3]([N:5]1[C@H:9]([CH2:10][F:11])[C@@H:8]([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[CH:23]=[CH:22][C:21]([CH:24]([O:26][S:38]([CH3:37])(=[O:40])=[O:39])[CH3:25])=[N:20][CH:19]=3)=[CH:14][CH:13]=2)[O:7][C:6]1([CH3:28])[CH3:27])=[O:4]
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HCID 769Bicarbonate IonHCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 866954522,2-Difluoro-1-((4S,5R)-4-fluoromethyl-5-{4-[6-(1-hydroxy-ethyl)-pyridin-3-yl]-phenyl}-2,2-dimethyl-oxazolidin-3-yl)-ethanone

생성물 1

HCID 86695453Methanesulfonic acid 1-(5-{4-[(4S,5R)-3-(2,2-difluoro-acetyl)-4-fluoromethyl-2,2-dimethyl-oxazolidin-5-yl]-phenyl}-pyridin-2-yl)-ethyl ester
수율 68.6%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

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온도
0 °C

실험 절차

To a stirred solution of 2,2-Difluoro-1-((4S,5R)-4-fluoromethyl-5-{4-[6-(1-hydroxy-ethyl)-pyridin-3-yl]-phenyl}-2,2-dimethyl-oxazolidin-3-yl)-ethanone (2.2 g, 5.39 mmol) in CH2Cl2 (25 mL) is added triethylamine (1.51 mL, 10.78 mmol) and methane sulfonyl chloride (0.527 mL, 6.47 mmol). Reaction mixture is stirred at 0° C. for 30 minutes then diluted using saturated bicarbonate solution and extracted with CH2Cl2 (30 mL) Organic layer is dried over sodium sulphate, solvent is evaporated in vacuo and purified by combiflash using 45% ethyl acetate in hexane as an eluent to afford the title compound (1.8 g). 1H NMR (400 MHz, DMSO-d6) δ: 1.53 (s, 3H), 1.60 (s, 3H), 1.68 (d, J=6.56 Hz, 3H), 3.21 (s, 3H), 4.54-4.58 (m, 0.5H), 4.66-4.71 (m, 1H), 4.81-4.84 (m, 0.5H), 4.90-4.95 (m, 1H), 5.27 (d, J=3.92 Hz, 1H), 5.79-5.84 (m, 1H), 6.64 (t, J=52.24, 1H), 7.60-7.63 (m, 3H), 7.81 (d, J=8.2 Hz, 2H), 8.17-8.20 (dd, J1=8.08 Hz, J2=2.24 Hz, 1H), 8.92 (d, J=2.00 Hz, 1H). LC-Ms (m/z): 487.1 [M+H].

후처리

  1. customReaction mixture
  2. additionthen diluted
  3. extractionextracted with CH2Cl2 (30 mL) Organic layer
  4. dry with materialis dried over sodium sulphate, solvent
  5. customis evaporated in vacuo
  6. custompurified by combiflash

출처 및 근거

ORD 기록
ord-cd364c21475b4b0782e2c542a85de9d4
출처 데이터셋
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09073894B2

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