Diisopropylethylamine → 1-methyl-3-{1-[(2,3,5-trifluorophenyl)acetyl]-2,3-dihydro-1H-indol-5-yl}-1H-pyrazolo[3,4-d]pyrimidin-4-amine

HRID 1909975Notes

Reaction equation

HRID 1909975 reaction equation
[NH:1]1[C:9]2[C:4](=[CH:5][C:6]([C:10]3[C:18]4[C:13](=[N:14][CH:15]=[N:16][C:17]=4[NH2:19])[N:12]([CH3:20])[N:11]=3)=[CH:7][CH:8]=2)[CH2:3][CH2:2]1.[F:21][C:22]1[C:27]([F:28])=[CH:26][C:25]([F:29])=[CH:24][C:23]=1[CH2:30][C:31](O)=[O:32].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>O>[CH3:20][N:12]1[C:13]2=[N:14][CH:15]=[N:16][C:17]([NH2:19])=[C:18]2[C:10]([C:6]2[CH:5]=[C:4]3[C:9](=[CH:8][CH:7]=2)[N:1]([C:31](=[O:32])[CH2:30][C:23]2[CH:24]=[C:25]([F:29])[CH:26]=[C:27]([F:28])[C:22]=2[F:21])[CH2:2][CH2:3]3)=[N:11]1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 27779462,3,5-Trifluorophenylacetic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 668235513-(2,3-dihydro-1H-indol-5-yl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Product 1

HCID 534680391-methyl-3-{1-[(2,3,5-trifluorophenyl)acetyl]-2,3-dihydro-1H-indol-5-yl}-1H-pyrazolo[3,4-d]pyrimidin-4-amineYield 49.8%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A solution of 3-(2,3-dihydro-1H-indol-5-yl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (100 mg, 0.330 mmol), (2,3,5-trifluorophenyl)acetic acid (69.1 mg, 0.363 mmol), HATU (151 mg, 0.396 mmol), DIEA (0.173 mL, 0.991 mmol) was stirred overnight at room temperature. At this time, LCMS analysis indicated complete conversion, so the reaction mixture was poured into water (10 mL), whereupon a beige precipitate formed. The precipitate was filtered, suspended in DCM-methanol and dry-loaded onto silica, then purified by flash chromatography (0-10% methanol in DCM) to afford 1-methyl-3-{1-[(2,3,5-trifluorophenyl)acetyl]-2,3-dihydro-1H-indol-5-yl}-1H-pyrazolo[3,4-d]pyrimidin-4-amine (72 mg) as a white solid. LC-MS (ES) m/z=439 [M+H]+. 1H NMR (400 MHz, DMSO-d6) 3.26-3.32 (m, 2H), 3.94 (s, 3H), 4.06 (s, 2H), 4.28-4.37 (m, 2H), 7.09-7.20 (m, 1H), 7.41-7.52 (m, 2H), 7.53-7.57 (m, 1H), 8.11-8.18 (m, 1H), 8.25 (s, 1H).

Workup

  1. customformed
  2. filtrationThe precipitate was filtered
  3. custompurified by flash chromatography (0-10% methanol in DCM)

Sources & evidence

ORD record
ord-63fd2838b4114dc894d6726d4eaa3205
Source dataset
uspto-grants-2013_12
Patent number
US08598156B2

Reaction notes

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