Piperidine → 4-[1-(2-aminopyrimidin-4-yl)-3-methyl-1H-indazol-6-yl]-2-(1,3-oxazol-4-yl)but-3-yn-2-ol

HRID 1398552Notes

Reaction equation

HRID 1398552 reaction equation
I[C:2]1[CH:10]=[C:9]2[C:5]([C:6]([CH3:18])=[N:7][N:8]2[C:11]2[CH:16]=[CH:15][N:14]=[C:13]([NH2:17])[N:12]=2)=[CH:4][CH:3]=1.N1CCCCC1.[O:25]1[CH:29]=[C:28]([C:30]([OH:34])([C:32]#[CH:33])[CH3:31])[N:27]=[CH:26]1>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.[Cu]I>[NH2:17][C:13]1[N:12]=[C:11]([N:8]2[C:9]3[C:5](=[CH:4][CH:3]=[C:2]([C:33]#[C:32][C:30]([C:28]4[N:27]=[CH:26][O:25][CH:29]=4)([OH:34])[CH3:31])[CH:10]=3)[C:6]([CH3:18])=[N:7]2)[CH:16]=[CH:15][N:14]=1

Participants

6

Reactant 3

HCID 8082PiperidineHCID 681816364-(6-Iodo-3-methylindazol-1-yl)pyrimidin-2-amineHCID 866695772-(1,3-Oxazol-4-yl)but-3-yn-2-ol

Product 1

HCID 601651414-[1-(2-aminopyrimidin-4-yl)-3-methyl-1H-indazol-6-yl]-2-(1,3-oxazol-4-yl)but-3-yn-2-ol

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalyst

Procedure

To a vial was added 4-(6-iodo-3-methylindazol-1-yl)pyrimidin-2-amine (150 mg, 0.43 mmol), piperidine (1.5 mL), tetrakis(triphenylphosphine)palladium (49.36 mg, 0.04 mmol), copper(I) iodide (8.14 mg, 0.04 mmol) and 2-(1,3-oxazol-4-yl)but-3-yn-2-ol (87.87 mg, 0.64 mmol). The mixture was stirred at RT for 20 mins. Reaction mixture was concentrated in vacuo. DCM (5 mL) added and mixture was concentrated in vacuo. This was repeated twice. The crude material was purified by column chromatography (Biotage, 98:2 to 88:12 DCM: methanol gradient). Further purification by flash column chromatography gave the title compound: 1H (500 MHz, DMSO) delta 1.81 (3H, s), 2.58 (3H, s), 6.26 (1H, s), 6.99 (2H, s), 7.04 (1H, d, J=5.5 Hz), 7.39 (1H, dd, J=8.2, 1.1 Hz), 7.85 (1H, d, J=8.1 Hz), 8.13 (1H, s), 8.26 (1H, d, J=5.5 Hz), 8.36 (1H, s), 8.87 (1H, s); LC-MS: m/z=+361.05 (M+H)+.

Workup

  1. customReaction mixture
  2. concentrationwas concentrated in vacuo
  3. additionDCM (5 mL) added
  4. concentrationmixture was concentrated in vacuo
  5. customThe crude material was purified by column chromatography (Biotage, 98:2 to 88:12 DCM: methanol gradient)
  6. customFurther purification by flash column chromatography

Sources & evidence

ORD record
ord-a7a66913ddce41cf929e4c3f0c892eb9
Source dataset
uspto-grants-2014_12
Patent number
US08901313B2

Reaction notes

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