Sodium Carbonate → HCID 22347354, compound

HRID 2056089Notes

Reaction equation

HRID 2056089 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][N:15]([CH3:18])[CH2:14][CH2:13]2)[N:3]=1.[CH3:19][C:20]1[CH:21]=[C:22]([CH3:45])[C:23]2[O:27][C:26]([NH:28][C:29]3[CH:34]=[CH:33][C:32](B4OC(C)(C)C(C)(C)O4)=[CH:31][CH:30]=3)=[N:25][C:24]=2[CH:44]=1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC.O.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=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][N:15]([CH3:18])[CH2:14][CH2:13]3)[N:3]=[C:2]([C:32]3[CH:31]=[CH:30][C:29]([NH:28][C:26]4[O:27][C:23]5[C:22]([CH3:45])=[CH:21][C:20]([CH3:19])=[CH:44][C:24]=5[N:25]=4)=[CH:34][CH:33]=3)[C:10]=12

Participants

8

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]-amine2×HCID 223471833-iodo-1-(1-methyl-4-piperidyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Product 1

HCID 22347354HCID 22347354, compoundYield 60.7%

Reagents, catalysts & solvents 4

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 3-iodo-1-(1-methyl-4-piperidyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (0.2 g, 0.00056 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 (0.2 g, 0.00056 mol), tetrakis(triphenylphosphine)-palladium (0.032 g, 0.000028 mol) and sodium carbonate (0.15 g, 0.0014 mol) in ethylene glycol dimethyl ether (20 mL) and water (5 mL) was heated at 80° C. for 3 hours under an atmosphere of nitrogen. Additional N-(5,7-dimethyl-1,3-benzoxazol-2-yl)-N-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]amine (0.2 g, 0.00056 mol) and tetrakis(triphenylphosphine)palladium (0.032 g, 0.000028 mol) were added, and the mixture was stirred at 80° C. for 16 hours. 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 (2×50 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 5%-25% methanol/dichloromethane as a mobile phase to give N2-{4-[4-amino-1-(1-methyl-4-piperidyl)-1H-pyrazolo[3,4-d]pyrimidin-3-yl]phenyl}-5,7-dimethyl-1,3-benzoxazol-2-amine (0.16 g, 0.00034 mol). 1H NMR (TFA-d, 400 MHz) δ 8.50 (s, 1H), 7.85 (m, 2H), 7.80 (m, 2H), 7.10 (s, 2H), 5.45 (br, 1H), 3.95 (br, 2H), 3.75 (br, 1H), 3.45 (br, 1H), 3.10 (s, 3H), 2.85 (br, 1H), 2.65 (br, 1H), 2.49 (br, 2H), 2.40 (s, 3H), 2.42 (s, 3H). RP-HPLC (Delta Pak C18, 5 μm, 300A, 15 cm; 5%-85% acetonitrile—0.1M ammonium acetate over 20 min, 1 mL/min) Rt 10.7 min. MS: MH+ 469

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 (2×50 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 5%-25% methanol/dichloromethane as a mobile phase

Sources & evidence

ORD record
ord-ba4fbe6c01194f2792313cb1ef9b3898
Source dataset
uspto-grants-2008_02
Patent number
US07332497B2

Reaction notes

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