Triethylamine → 1-(3-(dimethylamino)propyl)-N3-(2,6-dimethylphenyl)-N6-phenyl-1H-pyrazolo[3,4-d]pyrimidine-3,6-diamine

HRID 2357985Notes

Reaction equation

HRID 2357985 reaction equation
[CH3:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([CH3:8])[C:3]=1[NH:9][C:10]1[C:18]2[C:13](=[N:14][C:15]([NH:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)=[N:16][CH:17]=2)[N:12]([CH2:26][CH2:27][CH:28]=O)[N:11]=1.[CH3:30][NH:31][CH3:32].Cl.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+].C(N(CC)CC)C>ClCCCl>[CH3:30][N:31]([CH3:32])[CH2:28][CH2:27][CH2:26][N:12]1[C:13]2=[N:14][C:15]([NH:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)=[N:16][CH:17]=[C:18]2[C:10]([NH:9][C:3]2[C:4]([CH3:8])=[CH:5][CH:6]=[CH:7][C:2]=2[CH3:1])=[N:11]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 10473Dimethylamine, hydrochlorideHCID 5049666Sodium triacetoxyborohydrideHCID 588368773-(3-(2,6-dimethylphenylamino)-6-(phenylamino)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)propanal

Product 1

HCID 160488231-(3-(dimethylamino)propyl)-N3-(2,6-dimethylphenyl)-N6-phenyl-1H-pyrazolo[3,4-d]pyrimidine-3,6-diamine

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

A solution of 66 mg (0.2 mmol) of crude 3-(3-(2,6-dimethylphenylamino)-6-(phenylamino)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)propanal 36 (Example 4, Step A) and 28 mg (0.3 mmol) of dimethylamine•HCl in 7 mL of 1,2-dichloroethane was treated sequentially with 60 mg (95%, 0.3 mmol) of NaBH(OAc)3 and 75 μl (0.5 mmol) of triethylamine. The resulting brown slurry was stirred at room temperature for 17 h. The reaction mixture was quenched with saturated aqueous sodium bicarbonate (15 mL) and extracted with EtOAc (3×30 mL). The combined organic layers were dried over Na2SO4, filtered, and the filtrate was purified by chromatography on silica gel (CH2Cl2:MeOH, 44:6 grading to CH2Cl2:MeOH, 4:1) to give the title compound 38. 1H-NMR (CD3OD) δ 2.06-2.14 (m, 2H), 2.28 (s, 6H), 2.49 (s, 6H), 2.72 (t, J=7.3 Hz, 2H), 4.19 (t, J=6.3 Hz, 2H), 7.01 (t, J=7.4 Hz, 1H), 7.12-7.19 (m, 3H), 7.31 (t, J=8.0 Hz, 2H), 7.75 (dd, J=8.6 Hz, 0.9 Hz, 2H), 8.27 (s, 1H). Mass Spectrum (ESI) m/e=416.1 (M+1).

Workup

  1. customThe reaction mixture was quenched with saturated aqueous sodium bicarbonate (15 mL)
  2. extractionextracted with EtOAc (3×30 mL)
  3. dry with materialThe combined organic layers were dried over Na2SO4
  4. filtrationfiltered
  5. customthe filtrate was purified by chromatography on silica gel (CH2Cl2:MeOH, 44:6 grading to CH2Cl2:MeOH, 4:1)

Sources & evidence

ORD record
ord-7a482ba208f646d8b7f72332cb44d6c4
Source dataset
uspto-grants-2010_07
Patent number
US07763624B2

Reaction notes

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