Piperidin-4-ol → (3E)-6-fluoro-3-[4-{4-[(4-hydroxypiperidin-1-yl)carbonyl]phenyl}-5,5-dimethylfuran-2(5H)-ylidene]-1,3-dihydro-2H-indol-2-one

HRID 333368Notes

Reaction equation

HRID 333368 reaction equation
[F:1][C:2]1[CH:10]=[C:9]2[C:5](/[C:6](=[C:12]3/[CH:13]=[C:14]([C:19]4[CH:27]=[CH:26][C:22]([C:23]([OH:25])=O)=[CH:21][CH:20]=4)[C:15]([CH3:18])([CH3:17])[O:16]/3)/[C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1.[OH:28][CH:29]1[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2C=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C>CN(C=O)C.O>[F:1][C:2]1[CH:10]=[C:9]2[C:5](/[C:6](=[C:12]3\[O:16][C:15]([CH3:17])([CH3:18])[C:14]([C:19]4[CH:27]=[CH:26][C:22]([C:23]([N:32]5[CH2:33][CH2:34][CH:29]([OH:28])[CH2:30][CH2:31]5)=[O:25])=[CH:21][CH:20]=4)=[CH:13]\3)/[C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1

Participants

7

Reactant 4

HCID 79341Piperidin-4-olHCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 589262664-[(5E)-5-(6-fluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)-2,2-dimethyl-2,5-dihydrofuran-3-yl]benzoic acid

Product 1

HCID 58926040(3E)-6-fluoro-3-[4-{4-[(4-hydroxypiperidin-1-yl)carbonyl]phenyl}-5,5-dimethylfuran-2(5H)-ylidene]-1,3-dihydro-2H-indol-2-one

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A mixture of 4-[(5E)-5-(6-fluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)-2,2-dimethyl-2,5-dihydrofuran-3-yl]benzoic acid (50 mg, 0.137 mmol), 4-hydroxypiperidine (15 mg, 0.15 mmol), O-benzotriazol-1-yl-N,N,N′,N′-tetramethyluronium hexafluorophosphate (HBTU) (57 mg, 0.15 mmol) and diisopropylethylamine (39 mg, 0.30 mmol) in 3 mL of anhydrous DMF was stirred at room temperature. The mixture was poured into 75 mL of water. The precipitates were filtered, washed with water, and dried in vacuo to give (3E)-6-fluoro-3-[4-{4-[(4-hydroxypiperidin-1-yl)carbonyl]phenyl}-5,5-dimethylfuran-2(5H)-ylidene]-1,3-dihydro-2H-indol-2-one as orange solid. Yield: 52 mg, 85%.

Workup

  1. filtrationThe precipitates were filtered
  2. washwashed with water
  3. customdried in vacuo

Sources & evidence

ORD record
ord-a4eb435e25754608b7348ef56988f0c1
Source dataset
uspto-grants-2014_11
Patent number
US08877923B2

Reaction notes

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