Triethylamine → N-{[(4-{[3-[2-(cyclopentylamino)pyrimidin-4-yl]-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridin-7-yl]amino}butyl)amino]carbonyl}-4-methylbenzenesulfonamide

HRID 861169Notes

Reaction equation

HRID 861169 reaction equation
[CH:1]1([NH:6][C:7]2[N:12]=[C:11]([C:13]3[C:14]([C:28]4[CH:33]=[CH:32][C:31]([O:34][CH3:35])=[CH:30][CH:29]=4)=[N:15][N:16]4[C:21]([NH:22][CH2:23][CH2:24][CH2:25][CH2:26][NH2:27])=[CH:20][CH:19]=[CH:18][C:17]=34)[CH:10]=[CH:9][N:8]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.C(N(CC)CC)C.[C:43]1([CH3:55])[CH:48]=[CH:47][C:46]([S:49]([N:52]=[C:53]=[O:54])(=[O:51])=[O:50])=[CH:45][CH:44]=1.C(=O)(O)[O-].[Na+]>ClCCl>[CH:1]1([NH:6][C:7]2[N:12]=[C:11]([C:13]3[C:14]([C:28]4[CH:29]=[CH:30][C:31]([O:34][CH3:35])=[CH:32][CH:33]=4)=[N:15][N:16]4[C:21]([NH:22][CH2:23][CH2:24][CH2:25][CH2:26][NH:27][C:53]([NH:52][S:49]([C:46]5[CH:47]=[CH:48][C:43]([CH3:55])=[CH:44][CH:45]=5)(=[O:51])=[O:50])=[O:54])=[CH:20][CH:19]=[CH:18][C:17]=34)[CH:10]=[CH:9][N:8]=2)[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 77703p-Toluenesulfonyl isocyanateHCID 516892Sodium BicarbonateHCID 10140154N-[3-[2-(cyclopentylamino)pyrimidin-4-yl]-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridin-7-yl]butane-1,4-diamine

Product 1

HCID 10305206N-{[(4-{[3-[2-(cyclopentylamino)pyrimidin-4-yl]-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridin-7-yl]amino}butyl)amino]carbonyl}-4-methylbenzenesulfonamideYield 41.9%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a cold (0° C.) solution of N-[3-[2-(cyclopentylamino)pyrimidin-4-yl]-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridin-7-yl]butane-1,4-diamine (28 mg, 0.05 mmol) in dichloromethane (5 mL) was added triethylamine (0.1 mL) and p-tolylsulfonyl isocyanate (0.012 mL, 0.08 mmol). The resultant solution was stirred at 0° C. for 1 hour and saturated aqueous sodium bicarbonate was added. The organic layer was washed with brine. The aqueous layer was extracted with dichloromethane and the combined organics were dried over sodium sulfate. Filtration and concentration followed by flash chromatography (5% methanol in dichloromethane) and recrystallization from dichloromethane-ether provided N-{[(4-{[3-[2-(cyclopentylamino)pyrimidin-4-yl]-2-(4-methoxyphenyl)pyrazolo[1,5-a]pyridin-7-yl]amino}butyl)amino]carbonyl}-4-methylbenzenesulfonamide (14 mg, 35%) as a yellow solid. 1H NMR (CDCl3): δ 8.03 (m, 1 H), 7.84–7.76 (m, 3 H), 7.58 (d, 2 H), 7.36–7.26 (m, 5 H), 7.01 (d, 2 H), 6.66 (m, 1 H), 6.34 (m 1 H), 6.04 (m, 2 H), 4.36 (m, 1 H), 3.91 (s, 3 H), 3.38–3.30 (m, 4 H), 2.36 (s, 3 H), 2.07 (m, 2 H), 1.82–1.54 (m, 10 H); MS m/z 669 (M+1).

Workup

  1. washThe organic layer was washed with brine
  2. extractionThe aqueous layer was extracted with dichloromethane
  3. dry with materialthe combined organics were dried over sodium sulfate
  4. filtrationFiltration and concentration
  5. customfollowed by flash chromatography (5% methanol in dichloromethane) and recrystallization from dichloromethane-ether

Sources & evidence

ORD record
ord-d88ea4c237304f88a6ef9ef3786ae450
Source dataset
uspto-grants-2006_12
Patent number
US07153855B2

Reaction notes

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