Methanol → (4R,5R)-4-(2-fluoro-5-((2-fluoropyridin-4-yl)ethynyl)pyridin-3-yl)-5-(3-fluorophenyl)oxazolidin-2-one

HRID 2362451노트

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HRID 2362451 반응식
[C:1]([C:3]1[CH:4]=[C:5]([C@@H:10]2[C@@H:14]([C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([F:21])[CH:16]=3)[O:13][C:12](=[O:22])[NH:11]2)[C:6]([F:9])=[N:7][CH:8]=1)#[CH:2].Br[C:24]1[CH:29]=[CH:28][N:27]=[C:26]([F:30])[CH:25]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CO>C(N(CC)CC)C.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[F:9][C:6]1[C:5]([C@@H:10]2[C@@H:14]([C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([F:21])[CH:16]=3)[O:13][C:12](=[O:22])[NH:11]2)=[CH:4][C:3]([C:1]#[C:2][C:24]2[CH:29]=[CH:28][N:27]=[C:26]([F:30])[CH:25]=2)=[CH:8][N:7]=1

참가 물질

8

반응물 4

HCID 887MethanolHCID 11776TriphenylphosphineHCID 27628514-Bromo-2-fluoropyridineHCID 86673416(4R,5R)-4-(5-ethynyl-2-fluoropyridin-3-yl)-5-(3-fluorophenyl)oxazolidin-2-one

생성물 1

HCID 69083238(4R,5R)-4-(2-fluoro-5-((2-fluoropyridin-4-yl)ethynyl)pyridin-3-yl)-5-(3-fluorophenyl)oxazolidin-2-one수율 31.4%

시약·촉매·용매 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매HCID 178418476HCID 178418476, 화합물촉매HCID 8471Triethylamine용매

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온도
90 °C

실험 절차

To a 15 ml sealable vial was added (4R,5R)-4-(5-ethynyl-2-fluoropyridin-3-yl)-5-(3-fluorophenyl)oxazolidin-2-one (20 mg, 0.067 mmol) in triethylamine (2 mL). To this suspension was added 4-bromo-2-fluoropyridine (15.24 mg, 0.087 mmol), triphenylphosphine (5.24 mg, 0.020 mmol) and copper(I) iodide (0.254 mg, 1.332 μmol). The solution was degassed with nitrogen for 20 min, then bis(triphenylphosphine)palladium(II) chloride (0.935 mg, 1.332 μmol) was quickly added and the vial was sealed, heated to 90° C., and allowed to stir overnight. The next day the suspension had turned homogeneous and the reaction was cooled to room temperature and the solvent was evaporated in vacuo. The crude residue was purified by silica gel chromotagraphy eluting first with 100% CH2Cl2 then 1% MeOH/99% CH2Cl2 affording (4R,5R)-4-(2-fluoro-5-((2-fluoropyridin-4-yl)ethynyl)pyridin-3-yl)-5-(3-fluorophenyl)oxazolidin-2-one (9.1 mg, 0.021 mmol, 31.4% yield) as a light yellow solid. 1H-NMR (CDCl3, 400 MHz) δ 8.63 (s, 1H), 8.51 (d, J=4.0, 1H), 8.45 (s, 1H), 8.14 (dd, J=8.0, 4.0, 1H), 7.69-7.64 (m, 1H), 7.60-7.54 (m, 1H), 7.50-7.43 (m, 1H), 7.21-7.13 (m, 2H), 6.05 (brs, 1H), 5.39 (d, J=4.0, 1H), 5.04 (d, J=4.0, 1H), LC/Mass spec. (Analytical HPLC method 2): RT=2.01 min. Mass=396.20 (MH)+.

후처리

  1. customThe solution was degassed with nitrogen for 20 min
  2. customthe vial was sealed
  3. temperaturethe reaction was cooled to room temperature
  4. customthe solvent was evaporated in vacuo
  5. customThe crude residue was purified by silica gel chromotagraphy
  6. washeluting first with 100% CH2Cl2

출처 및 근거

ORD 기록
ord-af9b2ab6867e4d9982b0216a0db92d23
출처 데이터셋
uspto-grants-2014_04
특허 번호
US08691821B2

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