Sodium Bicarbonate → HCID 58485287, compound

HRID 1046071Notes

Reaction equation

HRID 1046071 reaction equation
Cl[C:2]1[N:7]=[N:6][C:5]([C:8]([O:10]C)=[O:9])=[CH:4][CH:3]=1.[OH:12][C:13]([CH3:46])([CH3:45])[CH2:14][C@@:15]1([C:39]2[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=2)[O:20][C:19](=[O:21])[N:18]([C@H:22]([C:24]2[CH:29]=[CH:28][C:27](B3OC(C)(C)C(C)(C)O3)=[CH:26][CH:25]=2)[CH3:23])[CH2:17][CH2:16]1.C([O-])(O)=O.[Na+]>COCCOC.CCO.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[OH:12][C:13]([CH3:45])([CH3:46])[CH2:14][C@@:15]1([C:39]2[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=2)[O:20][C:19](=[O:21])[N:18]([C@H:22]([C:24]2[CH:25]=[CH:26][C:27]([C:2]3[N:7]=[N:6][C:5]([C:8]([OH:10])=[O:9])=[CH:4][CH:3]=3)=[CH:28][CH:29]=2)[CH3:23])[CH2:17][CH2:16]1

Participants

7

Reactant 3

HCID 516892Sodium BicarbonateHCID 12379801Methyl 6-chloropyridazine-3-carboxylateHCID 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-one

Product 1

HCID 58485287HCID 58485287, compoundYield 66.2%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of methyl 6-chloropyridazine-3-carboxylate (36 mg, 0.2 mmol) in DME (6 mL) was added Pd(PPh3)4 (20 mg, 0.02 mmol) under N2. The mixture was stirred at room temperature for 1 h. (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 (96 mg, 0.2 mmol) in EtOH (2 mL) and satd aq NaHCO3 (2 mL) were added. The mixture was stirred at 100° C. for another 2 h under N2. The reaction mixture was quenched by addition of H2O, and extracted by EtOAc. The combined organic phase was dried and concentrated to give the crude product, which was purified by preparative TLC to give 6-(4-((S)-1-((S)-6-(2-hydroxy-2-methylpropyl)-2-oxo-6-phenyl-1,3-oxazinan-3-yl)-ethyl)-phenyl)-pyridazine-3-carboxylic acid (63 mg, 60%).

Workup

  1. additionwere added
  2. customThe reaction mixture was quenched by addition of H2O
  3. extractionextracted by EtOAc
  4. customThe combined organic phase was dried
  5. concentrationconcentrated
  6. customto give the crude product, which
  7. customwas purified by preparative TLC

Sources & evidence

ORD record
ord-2dc100c779b146889f0d9cfc8d8f9ede
Source dataset
uspto-grants-2013_10
Patent number
US08569292B2

Reaction notes

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