Dichloromethane → 2-(1-(4-amino-3-(1H-indazol-6-yl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)-3-phenyl-4H-chromen-4-one

HRID 239660

Reaction equation

HRID 239660 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:12]([C:14]3[O:15][C:16]4[C:21]([C:22](=[O:30])[C:23]=3[C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=3)=[CH:20][CH:19]=[CH:18][CH:17]=4)[CH3:13])[N:9]=[C:10](I)[C:3]=12.[NH:31]1[C:39]2[C:34](=[CH:35][CH:36]=[C:37](B3OC(C)(C)C(C)(C)O3)[CH:38]=2)[CH:33]=[N:32]1.C(=O)([O-])[O-].[Na+].[Na+].ClCCl>CN(C=O)C.C(O)C.O>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:12]([C:14]3[O:15][C:16]4[C:21]([C:22](=[O:30])[C:23]=3[C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=3)=[CH:20][CH:19]=[CH:18][CH:17]=4)[CH3:13])[N:9]=[C:10]([C:37]3[CH:38]=[C:39]4[C:34]([CH:33]=[N:32][NH:31]4)=[CH:35][CH:36]=3)[C:3]=12

Participants

8

Reactant 4

HCID 6344DichloromethaneHCID 10340Sodium CarbonateHCID 441192506-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazoleHCID 582691102-(1-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)-3-phenyl-4H-chromen-4-one

Product 1

HCID 582691382-(1-(4-amino-3-(1H-indazol-6-yl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)-3-phenyl-4H-chromen-4-oneYield 10.2%

Reagents, catalysts & solvents 3

HCID 702EthanolSolventHCID 962WaterSolventHCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of Example 57b (0.500 g, 0.98 mmoles) in DMF (10 ml), ethanol (4 ml) and water (4 ml), 6-Indazoleboronic acid pinacol ester (0.478 g, 1.96 mmoles) and sodium carbonate (0.519 g, 4.90 mmoles) were added and the system is degassed for 30 min. Tetrakis triphenylphosphine Palladium (0.214 g, 0.185 mmoles) was added under nitrogen atmosphere and heated to 80° C. After 12 h, the reaction mixture was celite filtered, concentrated and extracted with ethyl acetate. The organic layer was dried over sodium sulphate and concentrated under reduced pressure. The crude product was purified by column chromatography with methanol: dichloromethane to afford the title compound as brown solid (0.050 g, 10% yield). MP: 176-178° C. 1H-NMR (δ ppm, DMSO-d6, 400 MHz): δ 13.18(s,1H), 8.14(s,1H), 8.09(s,1H), 8.05(dd, J=8.0,1.6 Hz,1H),7.91(d, J=8.3 Hz, 1H), 7.83(m,1H), 7.73(s, 1H), 7.63(d, J=8.3 Hz, 1H), 7.52(dt, J=7.9,0.8 Hz, 1H), 7.41(dd, J=8.3,1.2 Hz, 1H), 7.31-7.16(m, 5H), 6.01(q, J=6.9 Hz, 1H), 1.92(d, J=7.1 Hz, 3H). Mass: 500.04(M++1).

Workup

  1. customthe system is degassed for 30 min
  2. concentrationconcentrated
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic layer was dried over sodium sulphate
  5. concentrationconcentrated under reduced pressure
  6. customThe crude product was purified by column chromatography with methanol

Sources & evidence

ORD record
ord-df7ccc7bc3764759a773c007a3588475
Source dataset
uspto-grants-2014_02
Patent number
US08642607B2

Linked notes

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