Sodium Carbonate → N2-(4-{4-amino-1-[1-(2-methoxyethyl)-3-piperidyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}phenyl)-5,7-dimethyl-1,3-benzoxazol-2-amine

HRID 2056092Notes

Reaction equation

HRID 2056092 reaction equation
I[C:2]1[C:10]2[C:5](=[N:6][CH:7]=[N:8][C:9]=2[NH2:11])[N:4]([CH:12]2[CH2:17][CH2:16][CH2:15][N:14]([CH2:18][CH2:19][O:20][CH3:21])[CH2:13]2)[N:3]=1.[CH3:22][C:23]1[CH:24]=[C:25]([CH3:48])[C:26]2[O:30][C:29]([NH:31][C:32]3[CH:37]=[CH:36][C:35](B4OC(C)(C)C(C)(C)O4)=[CH:34][CH:33]=3)=[N:28][C:27]=2[CH:47]=1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC.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>[NH2:11][C:9]1[N:8]=[CH:7][N:6]=[C:5]2[N:4]([CH:12]3[CH2:17][CH2:16][CH2:15][N:14]([CH2:18][CH2:19][O:20][CH3:21])[CH2:13]3)[N:3]=[C:2]([C:35]3[CH:34]=[CH:33][C:32]([NH:31][C:29]4[O:30][C:26]5[C:25]([CH3:48])=[CH:24][C:23]([CH3:22])=[CH:47][C:27]=5[N:28]=4)=[CH:37][CH:36]=3)[C:10]=12

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 11581347(5,7-Dimethyl-benzoxazol-2-yl)-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-amineHCID 223468103-iodo-1-[1-(2-methoxyethyl)-3-piperidyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Product 1

HCID 22347051N2-(4-{4-amino-1-[1-(2-methoxyethyl)-3-piperidyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}phenyl)-5,7-dimethyl-1,3-benzoxazol-2-amineYield 82.5%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
80 °C

Procedure

The mixture of 3-iodo-1-[1-(2-methoxyethyl)-3-piperidyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (0.16 g, 0.0004 mol), N-(5,7-dimethyl-1,3-benzoxazol-2-yl)-N-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]amine (0.17 g, 0.00048 mol), tetrakis(triphenylphosphine)palladium (0.023 g, 0.00002 mol) and sodium carbonate (0.11 g, 0.001 mol) in ethylene glycol dimethyl ether (25 mL) and water (5 mL) was heated at 80° C. for 16 hours under an atmosphere of nitrogen. The mixture was allowed to cool to ambient temperature, and the solvent was removed under the reduced pressure. The residue was partitioned between water and dichloromethane. The aqueous layer was extracted with dichloromethane (3×50 mL). The combined organic extracts were washed with water, saturated aqueous sodium bicarbonate solution, and brine, and dried over magnesium sulfate. The solvents were evaporated under the reduced pressure to leave a brownish solid which was purified by flash column chromatography on silica using 2%-10% methanol/dichloromethane as a mobile phase to give N2-(4-{4-amino-1-[1-(2-methoxyethyl)-3-piperidyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}phenyl)-5,7-dimethyl-1,3-benzoxazol-2-amine (0.17 g, 0.00033 mol). 1H NMR (DMSO-d6, 400 MHz) δ 10.85 (s, 1H), 8.22 (s, 1H), 7.95 (d, 2H), 7.65 (d, 2H), 7.14 (s, 1H), 6.80 (s, 1H), 4.79 (br, 1H), 3.50 (m, 2H), 3.25 (s, 3H), 3.10 (br, 1H), 2.90 (br, 1H), 2.55 (br, 2H), 2.54(br, 1H), 2.40 (s, 3H), 2.35 (s, 3H), 2.05 (br, 3H), 1.80 (br, 1H), 1.70 (br, 1H). RP-HPLC (Delta Pak C18, 5 μm, 300A, 15 cm; 5%-95% acetonitrile—0.1M ammonium acetate over 10 min, 1 mL/min) Rt 9.9 min. MS: MH+ 513

Workup

  1. temperatureto cool to ambient temperature
  2. customthe solvent was removed under the reduced pressure
  3. customThe residue was partitioned between water and dichloromethane
  4. extractionThe aqueous layer was extracted with dichloromethane (3×50 mL)
  5. washThe combined organic extracts were washed with water, saturated aqueous sodium bicarbonate solution, and brine
  6. dry with materialdried over magnesium sulfate
  7. customThe solvents were evaporated under the reduced pressure
  8. customto leave a brownish solid which
  9. customwas purified by flash column chromatography on silica using 2%-10% methanol/dichloromethane as a mobile phase

Sources & evidence

ORD record
ord-2cd7394829044c36823e22fac365c74f
Source dataset
uspto-grants-2008_02
Patent number
US07332497B2

Reaction notes

Loading…