Bicarbonate Ion → ethyl 2-(4-(5-fluoro-4-(2-(1-hydroxycyclobutyl)thiazol-5-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-1H-pyrazol-1-yl)acetate

HRID 2362679Notes

Reaction equation

HRID 2362679 reaction equation
[F:1][C:2]1[C:3]([C:22]2[S:26][C:25]([C:27]3([OH:31])[CH2:30][CH2:29][CH2:28]3)=[N:24][CH:23]=2)=[C:4]2[CH:10]=[C:9](I)[N:8]([S:12]([C:15]3[CH:21]=[CH:20][C:18]([CH3:19])=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:5]2=[N:6][CH:7]=1.CC1(C)C(C)(C)OB([C:40]2[CH:41]=[N:42][N:43]([CH2:45][C:46]([O:48][CH2:49][CH3:50])=[O:47])[CH:44]=2)O1.C(=O)(O)[O-]>CN(C)C=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[F:1][C:2]1[C:3]([C:22]2[S:26][C:25]([C:27]3([OH:31])[CH2:30][CH2:29][CH2:28]3)=[N:24][CH:23]=2)=[C:4]2[CH:10]=[C:9]([C:40]3[CH:41]=[N:42][N:43]([CH2:45][C:46]([O:48][CH2:49][CH3:50])=[O:47])[CH:44]=3)[N:8]([S:12]([C:15]3[CH:21]=[CH:20][C:18]([CH3:19])=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:5]2=[N:6][CH:7]=1

Participants

6

Reactant 3

HCID 769Bicarbonate IonHCID 162183851-(Ethoxycarbonylmethyl)-1H-pyrazole-4-boronic acid pinacol esterHCID 670034821-(5-(5-fluoro-2-iodo-1-tosyl-1H-pyrrolo[2,3-b]pyridin-4-yl)thiazol-2-yl)cyclobutanol

Product 1

HCID 67003645ethyl 2-(4-(5-fluoro-4-(2-(1-hydroxycyclobutyl)thiazol-5-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-1H-pyrazol-1-yl)acetate

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
70 °C

Procedure

To a stirred ambient solution of 1-(5-(5-fluoro-2-iodo-1-tosyl-1H-pyrrolo[2,3-b]pyridin-4-yl)thiazol-2-yl)cyclobutanol (Example 59A) (940 mg, 1.651 mmol) and ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)acetate (694 mg, 2.476 mmol) in N,N-dimethylformamide (11.5 mL) was added saturated aqueous bicarbonate solution (3.83 mL) followed by bis(triphenylphosphine)palladium dichloride (81 mg, 0.116 mmol). The mixture was heated to 70° C. for 4 hours and was then quenched by the addition of water and ethyl acetate. The layers were separated, and the aqueous layer was extracted with additional ethyl acetate. The combined organics were dried with anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel, eluting with a gradient of 0 to 95% ethyl acetate in hexane, to give the title compound. MS ESI(+) m/z 596.1 [M+H]+.

Workup

  1. customwas then quenched by the addition of water and ethyl acetate
  2. customThe layers were separated
  3. extractionthe aqueous layer was extracted with additional ethyl acetate
  4. dry with materialThe combined organics were dried with anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by flash chromatography on silica gel
  8. washeluting with a gradient of 0 to 95% ethyl acetate in hexane

Sources & evidence

ORD record
ord-49c5dfad5bb0466293c8390b7a1025cd
Source dataset
uspto-grants-2014_04
Patent number
US08691810B2

Reaction notes

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