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

HRID 419530Notes

Reaction equation

HRID 419530 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][O:35][C:36]1[CH:41]=[C:40]([CH:42]2[CH2:47][CH2:46][N:45]([CH2:48][CH:49]([CH3:51])[CH3:50])[CH2:44][CH2:43]2)[CH:39]=[CH:38][C:37]=1[NH2:52].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:52][C:37]3[CH:38]=[CH:39][C:40]([CH:42]4[CH2:43][CH2:44][N:45]([CH2:48][CH:49]([CH3:51])[CH3:50])[CH2:46][CH2:47]4)=[CH:41][C:36]=3[O:35][CH3:34])[N:7]=2)[CH:18]=1

Participants

7

Reactant 4

HCID 6101p-Toluenesulfonic acidHCID 10942334Sodium MethoxideHCID 59452706{2-(Methyloxy)-4-[1-(2-methylpropyl)-4-piperidinyl]phenyl}amineHCID 594529693-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-benzamide

Product 1

HCID 59452922N-(2,6-difluorophenyl)-3-{3-[2-({2-(methyloxy)-4-[1-(2-methylpropyl)-4-piperidinyl]phenyl}amino)-4-pyrimidinyl]imidazo[1,2-a]pyridin-2-yl}benzamideYield 55.3%

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) (100 mg, 0.22 mmol), 2-(methyloxy)-4-[1-(2-methylpropyl)-4-piperidinyl]aniline (Example 160, step C) (51 mg, 0.19 mmol), and p-toluenesulfonic acid (98 mg, 0.52 mmol) were weighed into a 20 mL vial. 7 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 3 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 (72 mg, 0.105 mmol, 54%). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.23 (s, 1H), 9.41 (d, J=6.23 Hz, 1H), 8.52 (s, 1H), 8.33 (s, 1H), 8.24 (d, J=5.13 Hz, 1H), 8.04 (d, J=7.87 Hz, 1H), 7.80 (d, J=7.69 Hz, 1H), 7.72 (d, J=8.97 Hz, 1H), 7.57-7.65 (m, 2H), 7.43-7.49 (m, 1H), 7.35-7.43 (m, 1H), 7.16-7.22 (m, 2H), 6.99 (t, J=6.87 Hz, 1H), 6.95 (d, J=1.28 Hz, 1H), 6.78 (dd, J=8.24, 1.28 Hz, 1H), 6.48-6.54 (m, 1H), 3.82 (s, 3H), 2.90 (d, J=10.62 Hz, 2H), 2.40-2.46 (m, 1H), 1.97-2.05 (m, 2H), 1.91 (t, J=10.62 Hz, 2H), 1.65-1.76 (m, 5H), 0.84 (d, J=6.59 Hz, 6H). MS (ESI): 688 [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-598501ded17e4cbba2e7c14b598a7ebe
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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