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Sodium Carbonate → 3-{(S)-1-[4-(1-Cyclopropylmethyl-6-oxo-1,6-dihydro-pyridin-3-yl)-phenyl]-ethyl}-(S)-6-(2-hydroxy-2-methyl-propyl)-6-phenyl-[1,3]oxazinan-2-one

HRID 470527
Notes
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Reaction equation

HRID 470527 reaction equation
C([O-])([O-])=O.[Na+].[Na+].[OH:7][C:8]([CH3:41])([CH3:40])[CH2:9][C@@:10]1([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[O:15][C:14](=[O:16])[N:13]([C@H:17]([C:19]2[CH:24]=[CH:23][C:22](B3OC(C)(C)C(C)(C)O3)=[CH:21][CH:20]=2)[CH3:18])[CH2:12][CH2:11]1.Br[C:43]1[CH:44]=[CH:45][C:46](=[O:53])[N:47]([CH2:49][CH:50]2[CH2:52][CH2:51]2)[CH:48]=1>CN(C)C=O>[CH:50]1([CH2:49][N:47]2[C:46](=[O:53])[CH:45]=[CH:44][C:43]([C:22]3[CH:21]=[CH:20][C:19]([C@@H:17]([N:13]4[CH2:12][CH2:11][C@:10]([CH2:9][C:8]([OH:7])([CH3:40])[CH3:41])([C:34]5[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=5)[O:15][C:14]4=[O:16])[CH3:18])=[CH:24][CH:23]=3)=[CH:48]2)[CH2:52][CH2:51]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 10340Sodium CarbonateHCID 59532385(S)-6-(2-hydroxy-2-methylpropyl)-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-oneHCID 596357015-Bromo-1-(cyclopropylmethyl)-1,2-dihydropyridin-2-one

Product 1

HCID 426056123-{(S)-1-[4-(1-Cyclopropylmethyl-6-oxo-1,6-dihydro-pyridin-3-yl)-phenyl]-ethyl}-(S)-6-(2-hydroxy-2-methyl-propyl)-6-phenyl-[1,3]oxazinan-2-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

2 M aqueous Na2CO3 solution (0.84 mL) was added to a solution of (S)-6-(2-hydroxy-2-methylpropyl)-6-phenyl-3-[(S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl]-1,3-oxazinan-2-one (0.40 g) and 5-bromo-1-cyclopropylmethyl-1H-pyridin-2-one (0.24 g) in dimethyl-formamide (4 mL). The resulting mixture was sparged with argon for 10 min, before [1,1′-bis(diphenylphosphino)ferrocene]-dichloropalladium(II) dichloromethane complex (34 mg) was added. The mixture was heated to 100° C. and stirred at this temperature for 4 h. After cooling to ambient temperature, water was added and the resulting mixture was extracted with ethyl acetate. The combined organic extracts were washed with brine, dried (MgSO4), and concentrated. The residue was purified by chromatography on silica gel (dichloromethane/methanol 99:1->95:5) to afford the title compound that was crystallized with little ethyl acetate. Yield: 0.19 g (46% of theory); Mass spectrum (ESI+): m/z=501 [M+H]+.

Workup

  1. customThe resulting mixture was sparged with argon for 10 min, before [1,1′-bis(diphenylphosphino)ferrocene]-dichloropalladium(II) dichloromethane complex (34 mg)
  2. additionwas added
  3. temperatureAfter cooling to ambient temperature
  4. additionwater was added
  5. extractionthe resulting mixture was extracted with ethyl acetate
  6. washThe combined organic extracts were washed with brine
  7. dry with materialdried (MgSO4)
  8. concentrationconcentrated
  9. customThe residue was purified by chromatography on silica gel (dichloromethane/methanol 99:1->95:5)

Sources & evidence

ORD record
ord-076bd0fdac2149e780d465a95cb6dc70
Source dataset
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08629138B2

Reaction notes

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