Lithium Hydroxide → HCID 60205634, compound

HRID 1923910Notes

Reaction equation

HRID 1923910 reaction equation
[F:1][C:2]1[C:7]([F:8])=[CH:6][N:5]=[C:4]2[NH:9][CH:10]=[C:11]([NH2:12])[C:3]=12.[CH3:13][O:14][C@H:15]([CH3:19])[C:16](O)=[O:17].C1N(P(Cl)(N2C(=O)OCC2)=O)C(=O)OC1.[Li+].[OH-]>C(Cl)Cl.C(OCC)(=O)C.O>[F:1][C:2]1[C:7]([F:8])=[CH:6][N:5]=[C:4]2[NH:9][CH:10]=[C:11]([NH:12][C:16](=[O:17])[C@H:15]([O:14][CH3:13])[CH3:19])[C:3]=12

Participants

8

Reactant 4

HCID 3939Lithium HydroxideHCID 152842Bis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 2733584(2R)-2-methoxypropanoic acidHCID 60205313HCID 60205313, compound

Product 1

HCID 60205634HCID 60205634, compoundYield 70%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

TEA (0.82 mL, 5.91 mmol) was added to a mixture of 4,5-difluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (0.20 g, 1.18 mmol; Example 13, Step C), (R)-2-methoxypropanoic acid (0.25 g, 2.37 mmol) and BOP-Cl (0.60 g, 2.37 mmol) in DCM (5 mL) at room temperature. The reaction was stirred at room temperature for 1 hour, and then a 2N LiOH solution (3 mL) was added. The mixture was stirred at room temperature for 30 minutes, and water (10 mL) and ethyl acetate (30 mL) were added. The organic layer was separated, washed with brine, dried (sodium sulfate) and concentrated in vacuo. The residue obtained was purified by chromatography on silica gel (hexane:ethyl acetate 1:2) to give (R)-N-(4,5-difluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methoxypropanamide (0.21 g, 70%) as a solid.

Workup

  1. stirringThe mixture was stirred at room temperature for 30 minutes
  2. customThe organic layer was separated
  3. washwashed with brine
  4. dry with materialdried (sodium sulfate)
  5. concentrationconcentrated in vacuo
  6. customThe residue obtained
  7. customwas purified by chromatography on silica gel (hexane:ethyl acetate 1:2)

Sources & evidence

ORD record
ord-699a8b00e5be4a88b1c1f1c87717bb85
Source dataset
uspto-grants-2012_05
Patent number
US08178131B2

Reaction notes

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