HCID 59140152, compound → 8-Fluoro-5-(2-fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyridine-6-carboxylic acid (2-hydroxy-ethoxy)-amide

HRID 2064027Notes

Reaction equation

HRID 2064027 reaction equation
C([O:3][CH2:4][CH2:5][O:6][NH:7][C:8]([C:10]1[CH:11]=[C:12]([F:28])[C:13]2[N:14]([CH:25]=[N:26][CH:27]=2)[C:15]=1[NH:16][C:17]1[CH:22]=[CH:21][C:20]([I:23])=[CH:19][C:18]=1[F:24])=[O:9])=C>CO>[OH:3][CH2:4][CH2:5][O:6][NH:7][C:8]([C:10]1[CH:11]=[C:12]([F:28])[C:13]2[N:14]([CH:25]=[N:26][CH:27]=2)[C:15]=1[NH:16][C:17]1[CH:22]=[CH:21][C:20]([I:23])=[CH:19][C:18]=1[F:24])=[O:9]

Participants

3

Reactant 1

HCID 59140152HCID 59140152, compound

Product 1

HCID 441379388-Fluoro-5-(2-fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyridine-6-carboxylic acid (2-hydroxy-ethoxy)-amideYield 47.6%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A solution of 8-fluoro-5-(2-fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyridine-6-carboxylic acid (2-vinyloxy-ethoxy)-amide (200 mg, 0.39 mmol) in methanol (1 mL) was loaded onto an SCX-2 column. The column was washed with methanol (10 mL) then the product was then eluted with ammonia in methanol (20 mL, 2M), the appropriate fractions were concentrated in vacuo. The resultant residue was subjected to reverse phase preparative HPLC (10-90% acetonitrile/water 0.1% formic acid, Phenominex gemini PhC6, 5 micron, 250×20 mm). The resultant product was dissolved in ethyl acetate (5 mL) and washed with aqueous saturated sodium bicarbonate solution (10 mL). The aqueous fraction was extracted twice with ethyl acetate (2×10 mL) and the combined organics were washed with brine (20 mL), dried (MgSO4) and concentrated in vacuo to yield the title compound as a white solid (88 mg, 39%). LCMS (Method A): RT=7.71 min, [M+H]+=475. 1H NMR (DMSO-d6): 8.20 (1 H, s), 7.60 (1 H, s), 7.57 (1 H, dd, J=10.73, 1.96 Hz), 7.26 (1 H, dd, J=8.43, 1.82 Hz), 6.82 (1 H, d, J=11.14 Hz), 6.30 (1 H, t, J=8.71 Hz), 3.65 (2 H, t, J=4.77 Hz), 3.45 (2 H, t, J=4.68 Hz).

Workup

  1. washThe column was washed with methanol (10 mL)
  2. washthe product was then eluted with ammonia in methanol (20 mL, 2M)
  3. concentrationthe appropriate fractions were concentrated in vacuo
  4. dissolutionThe resultant product was dissolved in ethyl acetate (5 mL)
  5. washwashed with aqueous saturated sodium bicarbonate solution (10 mL)
  6. extractionThe aqueous fraction was extracted twice with ethyl acetate (2×10 mL)
  7. washthe combined organics were washed with brine (20 mL)
  8. dry with materialdried (MgSO4)
  9. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-e4018a1961a2432182bc3b2b3159d6c3
Source dataset
uspto-grants-2012_10
Patent number
US08288408B2

Reaction notes

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