p-Toluenesulfonic acid → N-(2,6-difluorophenyl)-3-(3-{2-[(5-methyl-2-(methyloxy)-4-{4-[2-(methylsulfonyl)-ethyl]-1-piperazinyl}phenyl)amino]-4-pyrimidinyl}imidazo[1,2-a]pyridin-2-yl)benzamide

HRID 419504Notes

Reaction equation

HRID 419504 reaction equation
Cl[C:2]1[N:7]=[C:6]([C:8]2[N:12]3[CH:13]=[CH:14][CH:15]=[CH:16][C:11]3=[N:10][C:9]=2[C:17]2[CH:18]=[C:19]([CH:31]=[CH:32][CH:33]=2)[C:20]([NH:22][C:23]2[C:28]([F:29])=[CH:27][CH:26]=[CH:25][C:24]=2[F:30])=[O:21])[CH:5]=[CH:4][N:3]=1.[CH3:34][C:35]1[C:36]([N:44]2[CH2:49][CH2:48][N:47]([CH2:50][CH2:51][S:52]([CH3:55])(=[O:54])=[O:53])[CH2:46][CH2:45]2)=[CH:37][C:38]([O:42][CH3:43])=[C:39]([CH:41]=1)[NH2:40].C1(C)C=CC(S(O)(=O)=O)=CC=1.C[O-].[Na+]>C(Cl)Cl.CC(O)C>[F:30][C:24]1[CH:25]=[CH:26][CH:27]=[C:28]([F:29])[C:23]=1[NH:22][C:20](=[O:21])[C:19]1[CH:31]=[CH:32][CH:33]=[C:17]([C:9]2[N:10]=[C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][N:12]3[C:8]=2[C:6]2[CH:5]=[CH:4][N:3]=[C:2]([NH:40][C:39]3[CH:41]=[C:35]([CH3:34])[C:36]([N:44]4[CH2:49][CH2:48][N:47]([CH2:50][CH2:51][S:52]([CH3:55])(=[O:54])=[O:53])[CH2:46][CH2:45]4)=[CH:37][C:38]=3[O:42][CH3:43])[N:7]=2)[CH:18]=1

Participants

7

Reactant 4

HCID 6101p-Toluenesulfonic acidHCID 10942334Sodium MethoxideHCID 594420995-Methyl-2-(methyloxy)-4-{4-[2-(methylsulfonyl)ethyl)-1-piperazinyl}anilineHCID 594529693-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-benzamide

Product 1

HCID 25124151N-(2,6-difluorophenyl)-3-(3-{2-[(5-methyl-2-(methyloxy)-4-{4-[2-(methylsulfonyl)-ethyl]-1-piperazinyl}phenyl)amino]-4-pyrimidinyl}imidazo[1,2-a]pyridin-2-yl)benzamideYield 49.1%

Reagents, catalysts & solvents 2

HCID 3776IsopropanolSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
120 °C

Procedure

3-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-benzamide (Intermediate Example 1) (90 mg, 0.195 mmol), 5-methyl-2-(methyloxy)-4-{4-[2-(methylsulfonyl)ethyl]-1-piperazinyl}aniline (57 mg, 0.175 mmol), and p-toluenesulfonic acid (89 mg, 0.47 mmol) were weighed into a 20 mL vial. 10 mL of iPrOH was added and the mixture was heated to 120° C. for 48 h. The mixture was transferred to a 50 mL round bottom and neutralized with 2 mL of 0.5 N sodium methoxide. The solvent was rotovaped down. The residue was taken up in 10 mL of DCM. 1 g of silica gel was added. The solvent was rotovaped down and the pre-adsorbed solids were purified by flash chromatography to give the title compound (65 mg, 0.086 mmol, 49%). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.22 (s, 1H), 9.39 (s, 1H), 8.46 (s, 1H), 8.32 (s, 1H), 8.22 (d, J=5.31 Hz, 1H), 8.04 (d, J=7.69 Hz, 1H), 7.80 (d, J=7.87 Hz, 1H), 7.72 (d, J=8.97 Hz, 1H), 7.59 (t, J=7.69 Hz, 1H), 7.42-7.51 (m, 2H), 7.34-7.42 (m, 1H), 7.13-7.23 (m, 2H), 6.97 (t, J=6.68 Hz, 1H), 6.75 (s, 1H), 6.48 (d, J=5.31 Hz, 1H), 3.79 (s, 3H), 3.30-3.35 (m, 2H), 3.05 (s, 3H), 2.82-2.90 (m, 4H), 2.76 (t, J=6.68 Hz, 2H), 2.53-2.64 (m, 4H), 2.13 (s, 3H). MS (ESI): 753 [M+H]+.

Workup

  1. addition1 g of silica gel was added
  2. customthe pre-adsorbed solids were purified by flash chromatography

Sources & evidence

ORD record
ord-79dd3da9897f4a7fbd4e27349e55d404
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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