Sodium Carbonate → 3-{(S)-1-[4-(1,5-Dimethyl-6-oxo-1,6-dihydro-pyridazin-3-yl)-phenyl]-ethyl}-(S)-6-(2-hydroxy-2-methyl-propyl)-6-phenyl-[1,3]oxazinan-2-one

HRID 2037824Notes

Reaction equation

HRID 2037824 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.Cl[C:43]1[CH:44]=[C:45]([CH3:51])[C:46](=[O:50])[N:47]([CH3:49])[N:48]=1>CN(C)C=O>[CH3:49][N:47]1[C:46](=[O:50])[C:45]([CH3:51])=[CH:44][C:43]([C:22]2[CH:21]=[CH:20][C:19]([C@@H:17]([N:13]3[CH2:12][CH2:11][C@:10]([CH2:9][C:8]([OH:7])([CH3:40])[CH3:41])([C:34]4[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=4)[O:15][C:14]3=[O:16])[CH3:18])=[CH:24][CH:23]=2)=[N:48]1

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 598459736-Chloro-2,4-dimethylpyridazin-3(2H)-one

Product 1

HCID 426054993-{(S)-1-[4-(1,5-Dimethyl-6-oxo-1,6-dihydro-pyridazin-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 (0.31 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 (0.15 g) and 6-chloro-2,4-dimethyl-2H-pyridazin-3-one (75 mg) in dimethylformamide (1 mL). The resulting mixture was sparged with argon for 10 min, before [1,1-bis(diphenylphosphino)ferrocene]-dichloropalladium(II) dichloromethane complex (15 mg) was added. The mixture was heated to 100° C. and stirred at this temperature overnight. 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 (CH2Cl2/MeOH 98:2→80:20) to afford the title compound.

Workup

  1. customThe resulting mixture was sparged with argon for 10 min, before [1,1-bis(diphenylphosphino)ferrocene]-dichloropalladium(II) dichloromethane complex (15 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 (CH2Cl2/MeOH 98:2→80:20)

Sources & evidence

ORD record
ord-f532e44237194f0eb63c9dd5f8d0cbfc
Source dataset
uspto-grants-2013_11
Patent number
US08575156B2

Reaction notes

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