Sodium Carbonate → HCID 178502634, compound

HRID 432172Notes

Reaction equation

HRID 432172 reaction equation
[CH3:1][O:2][N:3]=[C:4]([C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[C:5]1[CH:10]=[CH:9][C:8](B2OC(C)(C)C(C)(C)O2)=[CH:7][CH:6]=1.I[C:27]1[C:35]2[C:30](=[N:31][CH:32]=[N:33][C:34]=2[NH2:36])[N:29]([C@H:37]2[CH2:42][CH2:41][C@@H:40]([N:43]3[CH2:48][CH2:47][N:46]([CH3:49])[CH2:45][CH2:44]3)[CH2:39][CH2:38]2)[N:28]=1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC.O>[CH3:1][O:2][N:3]=[C:4]([C:5]1[CH:6]=[CH:7][C:8]([C:27]2[C:35]3[C:30](=[N:31][CH:32]=[N:33][C:34]=3[NH2:36])[N:29]([C@H:37]3[CH2:38][CH2:39][C@@H:40]([N:43]4[CH2:44][CH2:45][N:46]([CH3:49])[CH2:47][CH2:48]4)[CH2:41][CH2:42]3)[N:28]=2)=[CH:9][CH:10]=1)[C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=1

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 73884415phenyl-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-methanone O-methyloximeHCID 178481014HCID 178481014, compound

Product 1

HCID 178502634HCID 178502634, compoundYield 73.9%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Procedure

A mixture of phenyl-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-methanone O-methyloxime (intermediate AQ) (0.701 g, 0.0021 mol), cis-3-iodo-1-[4-(4-methylpiperazino)-cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (Intermediate AC) (0.80 g, 0.0018 mol), tetrakis-(triphenylphosphine)palladium (0.125 g, 0.00011 mol) and sodium carbonate (0.48 g, 0.0045 mol) was heated in a mixture of ethylene glycol dimethyl ether (40 mL) and water (20 mL) at 80° C. for 16 hours under an atmosphere of nitrogen. The mixture was allowed to cool to ambient temperature and solvents were removed under the reduced pressure. The residue was partitioned between saturated aqueous sodium bicarbonate solution (100 mL) and ethyl acetate (100 mL), the organic layer separated and the aqueous layer further extracted with ethyl acetate twice (70 mL each). The combined organic extracts were dried over magnesium sulfate. The solvents were evaporated under reduced pressure to leave a tan solid which was purified by flash column chromatography on silica using dichloromethane/triethylamine/methanol (96:3:1) as a mobile phase to give cis-{4-{4-amino-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}-phenyl}(phenyl)methanone O-methyloxime as a white solid (0.700 g, 0.00133 mol). Cis-{4-{4-amino-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}-phenyl}(phenyl)methanone O-methyloxime (0.201 g, 0.00039 mol) was dissolved in refluxing ethanol (17 mL) and a preheated solution of maleic acid (0.178 g, 0.0015 mol) in ethanol (8 mL) was added. The mixture was refluxed for 10 min, cooled to ambient temperature and the precipitate collected by filtration, washed with ethyl acetate and dried to give cis-{4-{4-amino-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}-phenyl}(phenyl)methanone O-methyloxime dimaleate as a white solid (0.212 g, 0.00028 mol): 1H NMR (DMSO-d6, 400 MHz) 8.26 (s, 1H), 7.74 (d, 1H), 7.66 (d, 1H), 7.51 (m, 6H), 7.33 (d, 1H), 6.14 (s, 4H), 4.85 (m, 1H), 3.91 (s, 3H) 3.1 (br, 9H), 2.71 (s, 3H), 2.33 (m, 2H), 2.07 (m, 2H), 1.74 (m, 4H); RP-HPLC (Delta Pak C18, 5 μm, 300 A, 15 cm; 5%-85% acetonitrile—0.1M ammonium acetate over 20 min, 1 mL/min) Rt 14.25 min. MS: MH+525.

Workup

  1. customsolvents were removed under the reduced pressure
  2. customThe residue was partitioned between saturated aqueous sodium bicarbonate solution (100 mL) and ethyl acetate (100 mL)
  3. customthe organic layer separated
  4. extractionthe aqueous layer further extracted with ethyl acetate twice (70 mL each)
  5. dry with materialThe combined organic extracts were dried over magnesium sulfate
  6. customThe solvents were evaporated under reduced pressure
  7. customto leave a tan solid which
  8. customwas purified by flash column chromatography on silica

Sources & evidence

ORD record
ord-84e367e9952a4c2191c57f7a79bbc652
Source dataset
uspto-grants-2003_12
Patent number
US06660744B1

Reaction notes

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