(3Z)-5-fluoro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylidene]-2,3-dihydro-1H-indol-2-one → (Z)-1,3-Dihydro-5-fluoro-4-[(3R,4R)-4-hydroxy-3-methylamino-1-pentynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one

HRID 366757Notes

Reaction equation

HRID 366757 reaction equation
C([N:8]([C@H:10]([C:21]#[CH:22])[C@H:11]([O:13][Si](C(C)(C)C)(C)C)[CH3:12])[CH3:9])(OC(C)(C)C)=O.[F:23][C:24]1[C:25](I)=[C:26]2[C:30](=[CH:31][CH:32]=1)[NH:29][C:28](=[O:33])/[C:27]/2=[CH:34]\[C:35]1[NH:36][CH:37]=[CH:38][C:39]=1[O:40][CH3:41]>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:23][C:24]1[C:25]([C:22]#[C:21][C@@H:10]([NH:8][CH3:9])[C@H:11]([OH:13])[CH3:12])=[C:26]2[C:30](=[CH:31][CH:32]=1)[NH:29][C:28](=[O:33])/[C:27]/2=[CH:34]\[C:35]1[NH:36][CH:37]=[CH:38][C:39]=1[O:40][CH3:41]

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 21971740HCID 21971740, compound

Product 1

HCID 15907933(Z)-1,3-Dihydro-5-fluoro-4-[(3R,4R)-4-hydroxy-3-methylamino-1-pentynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one

Reagents, catalysts & solvents 4

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

Procedure

Using Method C above, (2R,3R)-3-(N-Boc-N-methylamino)-2-(tert-butyldimethylsilyloxy)-pent-4-yne (370 mg, 1.13 mmol) (Example 117C above) was coupled with (Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (150 mg, 0.39 mmol) (Starting Material 6) using (Ph3P)4Pd (45 mg, 0.04 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 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 0-40% EtOAc in hexanes gradient. The resulting intermediate was dissolved in 5 mL of a 50% trifluoroacetic acid in CH2Cl2 solution that contained 0.5 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-[(3R,4R)-4-hydroxy-3-methylamino-1-pentynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one was obtained after silica gel column chromatography with a 0-10% MeOH in CH2Cl2 gradient and precipitation out of THF with excess pentane. (Yield 53 mg, 37%).

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 0-40% EtOAc in hexanes gradient
  5. dissolutionThe resulting intermediate was dissolved in 5 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-b57431a222ff4076b2e692158c882acf
Source dataset
uspto-grants-2000_10
Patent number
US06130239

Reaction notes

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