Water → (2R)-4-{4'-[(5R)-5-(acetamidomethyl)-2-oxo-1,3-oxazolidin-3-yl]-2'-fluorobiphenyl-4-yl}-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide

HRID 533560Notes

Reaction equation

HRID 533560 reaction equation
C(=O)([O-])[O-].[K+].[K+].CC1(C)COB([C:14]2[CH:19]=[CH:18][C:17]([N:20]3[CH2:24][C@H:23]([CH2:25][NH:26][C:27](=[O:29])[CH3:28])[O:22][C:21]3=[O:30])=[CH:16][C:15]=2[F:31])OC1.Br[C:34]1[CH:39]=[CH:38][C:37]([CH2:40][CH2:41][C@@:42]([CH3:57])([S:53]([CH3:56])(=[O:55])=[O:54])[C:43]([NH:45][O:46][CH:47]2[CH2:52][CH2:51][CH2:50][CH2:49][O:48]2)=[O:44])=[CH:36][CH:35]=1.O>O1CCOCC1.[Pd+2]>[C:27]([NH:26][CH2:25][C@H:23]1[O:22][C:21](=[O:30])[N:20]([C:17]2[CH:18]=[CH:19][C:14]([C:34]3[CH:35]=[CH:36][C:37]([CH2:40][CH2:41][C@@:42]([CH3:57])([S:53]([CH3:56])(=[O:54])=[O:55])[C:43]([NH:45][O:46][CH:47]4[CH2:52][CH2:51][CH2:50][CH2:49][O:48]4)=[O:44])=[CH:38][CH:39]=3)=[C:15]([F:31])[CH:16]=2)[CH2:24]1)(=[O:29])[CH3:28]

Participants

7

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 56950324(2R)-4-(4-bromophenyl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamideHCID 66577981N-({(5S)-3-[4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-3-fluorophenyl]-2-oxo-1,3-oxazolidin-5-yl}methyl)acetamide

Product 1

HCID 86668777(2R)-4-{4'-[(5R)-5-(acetamidomethyl)-2-oxo-1,3-oxazolidin-3-yl]-2'-fluorobiphenyl-4-yl}-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide

Reagents, catalysts & solvents 2

HCID 105144Allyl(1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene)chloropalladium(II)CatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
90 °C

Procedure

Palladium (II) EnCat (230 mg, 0.07 mmol) was added to a mixture of potassium carbonate (207 mg, 1.5 mmol), N-({(5S)-3-[4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-3-fluorophenyl]-2-oxo-1,3-oxazolidin-5-yl}methyl)acetamide (234 mg, 0.644 mmol), and 111a (2R)-4-(4-bromophenyl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide which was prepared as in Preparation 7 (200 mg, 0.46 mmol) in dioxane:water (6 mL, 5:1) in a 20 mL sealed vial. The vial was heated overnight at 90° C. The reaction was cooled to ambient temperature, filtered through celite and the filtrate was washed with ethyl acetate (30 mL) and methanol (15 mL). The combined organics were concentrated in vacuo and purified by chromatography on silica gel (gradient: 80:20 heptanes:ethyl acetate to 0:100 heptanes:ethyl acetate, followed by ethyl acetate:methanol 90:10) to furnish the title compound as a light brown gum. Yield 50 mg, 18% theoretical yield. LCMS m/z 604.3 (M−1)

Workup

  1. temperatureThe reaction was cooled to ambient temperature
  2. filtrationfiltered through celite
  3. washthe filtrate was washed with ethyl acetate (30 mL) and methanol (15 mL)
  4. concentrationThe combined organics were concentrated in vacuo
  5. custompurified by chromatography on silica gel (gradient: 80:20 heptanes:ethyl acetate to 0:100 heptanes:ethyl acetate, followed by ethyl acetate:methanol 90:10)

Sources & evidence

ORD record
ord-e64ab839770043e8b40b7492266e2bc8
Source dataset
uspto-grants-2014_10
Patent number
US08853258B2

Reaction notes

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