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

HRID 419458Notes

Reaction equation

HRID 419458 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][CH3:35])=[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.[F:36][C:37]1[C:38]([CH2:46][CH2:47][N:48]2[CH2:53][CH2:52][O:51][CH2:50][CH2:49]2)=[CH:39][C:40]([O:44][CH3:45])=[C:41]([CH:43]=1)[NH2:42].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:42][C:41]3[CH:43]=[C:37]([F:36])[C:38]([CH2:46][CH2:47][N:48]4[CH2:53][CH2:52][O:51][CH2:50][CH2:49]4)=[CH:39][C:40]=3[O:44][CH3:45])[N:7]=2)[CH:18]=[CH:19][C:20]=1[O:34][CH3:35]

Participants

7

Reactant 4

HCID 6101p-Toluenesulfonic acidHCID 10942334Sodium MethoxideHCID 594525905-(3-(2-chloropyrimidin-4-yl)imidazo[1,2-a]pyridin-2-yl)-N-(2,6-difluorophenyl)-2-methoxybenzamideHCID 594528865-Fluoro-2-(methyloxy)-4-[2-(4-morpholinyl)ethyl]aniline

Product 1

HCID 59452865N-(2,6-difluorophenyl)-5-{3-[2-({5-fluoro-2-(methyloxy)-4-[2-(4-morpholinyl)ethyl]phenyl}amino)-4-pyrimidinyl]imidazo[1,2-a]pyridin-2-yl}-2-(methyloxy)benzamideYield 47.8%

Reagents, catalysts & solvents 2

HCID 3776IsopropanolSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
180 °C

Procedure

5-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(methyloxy)benzamide (Intermediate Example 2) (100 mg, 0.2 mmol), 5-fluoro-2-(methyloxy)-4-[2-(4-morpholinyl)ethyl]aniline (46 mg, 0.18 mmol), and p-toluenesulfonic acid (92 mg, 0.49 mmol) were weighed into a 10 mL microwave vial. 5 mL of iPrOH was added and the mixture was heated in the microwave to 180° C. for 17 min. The mixture was transferred to a 50 mL round bottom and neutralized with 1 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, followed by MeOH re-crystallization to give the title compound (61 mg, 0.086 mmol, 47%). 1H NMR (400 MHz, CDCl3) δ ppm 9.51 (d, J=6.97 Hz, 1H), 9.28 (s, 1H), 8.61 (d, J=2.20 Hz, 1H), 8.24-8.32 (m, 2H), 7.88 (dd, J=8.62, 2.38 Hz, 1H), 7.78 (s, 1H), 7.71 (d, J=8.80 Hz, 1H), 7.32-7.39 (m, 1H), 7.16-7.23 (m, 1H), 7.14 (d, J=8.80 Hz, 1H), 6.90-7.00 (m, 3H), 6.74 (d, J=6.60 Hz, 1H), 6.69 (d, J=5.13 Hz, 1H), 4.12 (s, 3H), 3.91 (s, 3H), 3.73-3.80 (m, 4H), 2.78-2.86 (m, 2H), 2.58-2.65 (m, 2H), 2.52-2.58 (m, 4H). MS (ESI): 710 [M+H]+.

Workup

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

Sources & evidence

ORD record
ord-6e4e30eca24b4c699f7fac38031c6b07
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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