(3Z)-5-fluoro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylidene]-2,3-dihydro-1H-indol-2-one → (3Z)-5-fluoro-4-{2-[(2S,4S)-4-hydroxypyrrolidin-2-yl]ethynyl}-3-[(3-methoxy-1H-pyrrol-2-yl)methylidene]-2,3-dihydro-1H-indol-2-one

HRID 366737Notes

Reaction equation

HRID 366737 reaction equation
C([N:8]1[C@H:12]([C:13]#[CH:14])[CH2:11][C@H:10]([OH:15])[CH2:9]1)(OC(C)(C)C)=O.[F:16][C:17]1[C:18](I)=[C:19]2[C:23](=[CH:24][CH:25]=1)[NH:22][C:21](=[O:26])/[C:20]/2=[CH:27]\[C:28]1[NH:29][CH:30]=[CH:31][C:32]=1[O:33][CH3:34]>CN(C=O)C.CCN(CC)CC.CCOC(C)=O.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>[F:16][C:17]1[C:18]([C:14]#[C:13][C@@H:12]2[CH2:11][C@H:10]([OH:15])[CH2:9][NH:8]2)=[C:19]2[C:23](=[CH:24][CH:25]=1)[NH:22][C:21](=[O:26])/[C:20]/2=[CH:27]\[C:28]1[NH:29][CH:30]=[CH:31][C:32]=1[O:33][CH3:34]

Participants

7

Reactant 2

HCID 18363902(3Z)-5-fluoro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylidene]-2,3-dihydro-1H-indol-2-one2×HCID 21971746(3S,5S)-N-Boc-5-ethynyl-3-hydroxy-pyrrolidine

Product 1

HCID 23645084(3Z)-5-fluoro-4-{2-[(2S,4S)-4-hydroxypyrrolidin-2-yl]ethynyl}-3-[(3-methoxy-1H-pyrrol-2-yl)methylidene]-2,3-dihydro-1H-indol-2-one

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolventHCID 8857Ethyl AcetateSolvent

Procedure

Using Method C above, (3S,5S)-N-Boc-3-Hydroxy-5-ethynyl-pyrrolidine (132 mg, 0.62 mmol) (Example 103A above) was coupled with (Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (80 mg, 0.21 mmol) (Starting Material 6) using (Ph3P)4Pd (24 mg, 0.02 mmol) and a catalytic amount of Cul in a mixture of DMF (5 mL) and Et3N (5 mL) as solvent at 80° C. for 5.5 hrs. Upon completion, the reaction mixture was diluted with EtOAc and extracted with H2O. The organic layer was dried over Na2SO4, concentrated, and the residue was chromatographed on a silica gel column with a 0-100% EtOAc in hexanes gradient. The resulting intermediate was dissolved in 4 mL of a 50% trifluoroacetic acid in CH2Cl2 solution that contained 0.2 mL of H2O at 0° C. and stirred for 2 hrs. Upon completion, the reaction mixture was diluted with EtOAc and extracted with ammonium hydroxide. The organic layer was dried over Na2SO4 and concentrated. (Z)-1,3-Dihydro-5-fluoro-4-[(2S,4S)-(4-hydroxy-pyrrolidin-2-yl)-ethynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one was obtained after silica gel column chromatography with a 0-20% MeOH in CH2Cl2 gradient and precipitation out of THF with excess of pentane. (Yield 45 mg, 58%).

Workup

  1. extractionextracted with H2O
  2. dry with materialThe organic layer was dried over Na2SO4
  3. concentrationconcentrated
  4. customthe residue was chromatographed on a silica gel column with a 0-100% EtOAc in hexanes gradient
  5. dissolutionThe resulting intermediate was dissolved in 4 mL of a 50% trifluoroacetic acid in CH2Cl2 solution that
  6. customat 0° C.
  7. additionUpon completion, the reaction mixture was diluted with EtOAc
  8. extractionextracted with ammonium hydroxide
  9. dry with materialThe organic layer was dried over Na2SO4
  10. concentrationconcentrated

Sources & evidence

ORD record
ord-a547c9ec69394a1bab6ff6ee6c3dd3c8
Source dataset
uspto-grants-2000_10
Patent number
US06130239

Reaction notes

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