Methyl iodide → 3-((R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(4-fluorophenyl)-2-oxo-1,3-oxazinan-6-yl)-2,2-dimethylpropanenitrile

HRID 1187790노트

반응식

HRID 1187790 반응식
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([N:10]2[CH2:15][CH2:14][C@:13]([CH2:23][CH:24]([CH3:27])[C:25]#[N:26])([C:16]3[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=3)[O:12][C:11]2=[O:28])[CH3:9])=[CH:4][CH:3]=1.CI.[Li+].[CH3:32][Si]([N-][Si](C)(C)C)(C)C>C1COCC1>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([N:10]2[CH2:15][CH2:14][C@:13]([CH2:23][C:24]([CH3:32])([CH3:27])[C:25]#[N:26])([C:16]3[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=3)[O:12][C:11]2=[O:28])[CH3:9])=[CH:4][CH:3]=1

참가 물질

5

반응물 3

HCID 6328Methyl iodideHCID 2733832Lithium HexamethyldisilazideHCID 596357763-((R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(4-fluorophenyl)-2-oxo-1,3-oxazinan-6-yl)-2-methylpropanenitrile

생성물 1

HCID 596356553-((R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(4-fluorophenyl)-2-oxo-1,3-oxazinan-6-yl)-2,2-dimethylpropanenitrile수율 74%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

To a solution of 3-((R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(4-fluorophenyl)-2-oxo-1,3-oxazinan-6-yl)-2-methylpropanenitrile (0.332 g, 0.746 mmol) and MeI (1.40 g, 13 equiv) in THF (12 mL) at −78° C. was added 2.4 mL (2.4 mmol, 3.2 equiv) of a 1.0 M LiHMDS solution in THF. The resulting mixture was stirred overnight, with the temperature slowly rising to ambient. The reaction mixture was quenched with brine (1 mL), diluted with CH2Cl2, and dried over Na2SO4. After the solvents were evaporated, the residue was purified by reversed-phase HPLC (SunFire™ Prep O18 OBD™ 5 μm 19×50 mm column, 10%→90% CH3CN/H2O, 0.1% CF3COOH over 8 min and then 90% CH3CN/H2O, 0.1% CF3COOH over 2 min, flow rate 20 mL/min) to afford 0.255 g (74%) of 3-((R)-3-((S)-1-(4-bromophenyl)ethyl)-6-(4-fluorophenyl)-2-oxo-1,3-oxazinan-6-yl)-2,2-dimethylpropanenitrile. LC-MS Method 1 tR=1.89 min, m/z 459, 461 (MH+); 1H NMR (400 MHz, CD3OD) δ7.31-7.27 (m, 2H), 7.22-7.18 (m, 2H), 7.04-6.99 (m, 2H), 6.83 (d, J=8.2 Hz, 2H), 5.41 (q, J=7.0 Hz, 1H), 3.02-2.97 (m, 1H), 2.42-2.36 (m, 1H), 2.29-2.08 (m, 4H), 1.42 (d, J=7.0 Hz, 3H), 1.30 (s, 3H), 1.22 (s, 3H); 19F NMR (376 MHz, CD3OD) δ −116.50 (m).

후처리

  1. customThe reaction mixture was quenched with brine (1 mL)
  2. additiondiluted with CH2Cl2
  3. dry with materialdried over Na2SO4
  4. customAfter the solvents were evaporated
  5. customthe residue was purified by reversed-phase HPLC (SunFire™ Prep O18 OBD™ 5 μm 19×50 mm column, 10%
  6. customover 8 min
  7. wait90% CH3CN/H2O, 0.1% CF3COOH over 2 min

출처 및 근거

ORD 기록
ord-8e0b891855b84dbfa4a22e17bcfa5fe3
출처 데이터셋
uspto-grants-2014_03
특허 번호
US08673899B2

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