Acetic Acid → N2-[4-(4-amino-1-{1-[(2-methyl-1H-4-imidazolyl)methyl]-4-piperidyl}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-2-methoxyphenyl]-1-methyl-1H-2-indolecarboxamide

HRID 2056185Notes

Reaction equation

HRID 2056185 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:32]3[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]3)[N:9]=[C:10]([C:11]3[CH:16]=[CH:15][C:14]([NH:17][C:18]([C:20]4[N:21]([CH3:29])[C:22]5[C:27]([CH:28]=4)=[CH:26][CH:25]=[CH:24][CH:23]=5)=[O:19])=[C:13]([O:30][CH3:31])[CH:12]=3)[C:3]=12.[CH3:38][C:39]1[NH:40][CH:41]=[C:42]([CH:44]=O)[N:43]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C.C(=O)(O)[O-].[Na+]>ClCCCl>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:32]3[CH2:37][CH2:36][N:35]([CH2:44][C:42]4[N:43]=[C:39]([CH3:38])[NH:40][CH:41]=4)[CH2:34][CH2:33]3)[N:9]=[C:10]([C:11]3[CH:16]=[CH:15][C:14]([NH:17][C:18]([C:20]4[N:21]([CH3:29])[C:22]5[C:27]([CH:28]=4)=[CH:26][CH:25]=[CH:24][CH:23]=5)=[O:19])=[C:13]([O:30][CH3:31])[CH:12]=3)[C:3]=12

Participants

7

Reactant 5

HCID 176Acetic AcidHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 20817350HCID 20817350, compoundHCID 178418999HCID 178418999, compound

Product 1

HCID 178488175N2-[4-(4-amino-1-{1-[(2-methyl-1H-4-imidazolyl)methyl]-4-piperidyl}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-2-methoxyphenyl]-1-methyl-1H-2-indolecarboxamideYield 72.4%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

N2-{4-[4-amino-1-(4-piperidyl)-1H-pyrazolo[3,4-d]pyrimidin-3-yl]-2-methoxyphenyl}-1-methyl-1H-2-indolecarboxamide (250 mg, 0.503 mmol), 2-methyl-1H-4-imidazolecarbaldehyde (83 mg, 0.755 mmol), sodium triacetoxyborohydride (159 mg, 0.755 mmol) and glacial acetic acid (30 mg, 0.554 mmol) were mixed in 1,2-dichloroethane (6 mL). The reaction mixture was stirred at room temperature overnight. Saturated sodium bicarbonate solution was added to adjust the pH to about 8. The layers were separated and the aqueous layer was extracted with dichloromethane. The combined organic layer was washed with brine, dried over MgSO4, filtered and evaporated. The residue was purified by flash column chromatography using dichloromethane/methanol/ammonium hydroxide (95:5:0.5 to 80:20:05) as mobile phase to give N2-[4-(4-amino-1-{1-[(2-methyl-1H-4-imidazolyl)methyl]-4-piperidyl}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-2-methoxyphenyl]-1-methyl-1H-2-indolecarboxamide (215 mg, 72%). 1H NMR (DMSO-d6) δ 1.91 (m, 2H), 2.23 (m, 7H), 3.00 (m, 2H), 3.41 (s, 2H), 3.96 (s, 3H), 4.04 (s, 3H), 4.78 (m, 1H), 6.72 (s, 1H), 7.15 (m, 1H), 7.32 (m, 4H), 7.78 (d, J=8.43 Hz, 1H), 7.70 (d, J=7.92 Hz, 1H), 8.11 (d, J=7.92 Hz, 1H), 8.24 (s, 1H), 9.44 (s, 1H). LCMS (Thermoquest AQA single Quad MS, Finnigan HPLC-Column: Genesis, C18, 3 um, 33×4.6 mm. Eluents: 30% B/A to 95% B/A in 4.5 min. (B: acetonitrile, A: 50 mM ammonia acetate buffer, PH 4.5), 0.8 mL/min.): RT=2.00 min. MH+=591.3.

Workup

  1. customThe layers were separated
  2. extractionthe aqueous layer was extracted with dichloromethane
  3. washThe combined organic layer was washed with brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. customevaporated
  7. customThe residue was purified by flash column chromatography

Sources & evidence

ORD record
ord-9f9a67d3d04d4c45a30cdf85127b0da7
Source dataset
uspto-grants-2008_02
Patent number
US07332497B2

Reaction notes

Loading…