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

HRID 419529Notes

Reaction equation

HRID 419529 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]=[CH:19][C:20]([O:34][CH2:35][CH3:36])=[C:21]([CH:33]=2)[C:22]([NH:24][C:25]2[C:30]([F:31])=[CH:29][CH:28]=[CH:27][C:26]=2[F:32])=[O:23])[CH:5]=[CH:4][N:3]=1.[CH3:37][O:38][C:39]1[CH:44]=[C:43]([CH:45]2[CH2:50][CH2:49][N:48]([CH2:51][CH:52]([CH3:54])[CH3:53])[CH2:47][CH2:46]2)[CH:42]=[CH:41][C:40]=1[NH2:55].C1(C)C=CC(S(O)(=O)=O)=CC=1.C[O-].[Na+]>C(Cl)Cl.CC(O)C>[F:32][C:26]1[CH:27]=[CH:28][CH:29]=[C:30]([F:31])[C:25]=1[NH:24][C:22](=[O:23])[C:21]1[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:55][C:40]3[CH:41]=[CH:42][C:43]([CH:45]4[CH2:46][CH2:47][N:48]([CH2:51][CH:52]([CH3:54])[CH3:53])[CH2:49][CH2:50]4)=[CH:44][C:39]=3[O:38][CH3:37])[N:7]=2)[CH:18]=[CH:19][C:20]=1[O:34][CH2:35][CH3:36]

Participants

7

Reactant 4

HCID 6101p-Toluenesulfonic acidHCID 10942334Sodium MethoxideHCID 59452706{2-(Methyloxy)-4-[1-(2-methylpropyl)-4-piperidinyl]phenyl}amineHCID 594529415-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamide

Product 1

HCID 59452867N-(2,6-difluorophenyl)-2-(ethyloxy)-5-{3-[2-({2-(methyloxy)-4-[1-(2-methylpropyl)-4-piperidinyl]phenyl}amino)-4-pyrimidinyl]imidazo[1,2-a]pyridin-2-yl}benzamideYield 52%

Reagents, catalysts & solvents 2

HCID 3776IsopropanolSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
120 °C

Procedure

5-[3-(2-Chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamide (Intermediate Example 6) (100 mg, 0.2 mmol), 2-(methyloxy)-4-[1-(2-methylpropyl)-4-piperidinyl]aniline (Example 160, step C) (47 mg, 0.18 mmol), and p-toluenesulfonic acid (90 mg, 0.47 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 (67 mg, 0.092 mmol, 52%). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.73 (s, 1H), 9.37 (d, J=6.78 Hz, 1H), 8.50 (s, 1H), 8.24 (d, J=5.31 Hz, 1H), 8.04 (d, J=2.01 Hz, 1H), 7.67-7.75 (m, 2H), 7.64 (d, J=8.06 Hz, 1H), 7.41-7.46 (m, 1H), 7.32-7.40 (m, 1H), 7.25 (d, J=8.79 Hz, 1H), 7.17 (t, J=8.15 Hz, 2H), 6.94-6.98 (m, 2H), 6.78 (dd, J=8.24, 1.46 Hz, 1H), 6.59 (d, J=5.31 Hz, 1H), 4.25 (q, J=6.84 Hz, 2H), 3.82 (s, 3H), 2.90 (d, J=10.44 Hz, 2H), 2.42-2.46 (m, 1H), 2.02 (d, J=7.14 Hz, 2H), 1.91 (t, J=10.44 Hz, 2H), 1.65-1.75 (m, 5H), 1.41 (t, J=6.87 Hz, 3H), 0.84 (d, J=6.41 Hz, 6H). MS (ESI): 732 [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-f2350bea52d349769429463e52f0dc20
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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