Hydrochloric Acid → n-(2,6-Difluorophenyl)-5-(3-{2-[(5-ethyl-2-(methyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}phenyl)amino]-4-pyrimidinyl}imidazo[1,2-a]pyridin-2-yl)-2-(ethyloxy)benzamide

HRID 419600Notes

Reaction equation

HRID 419600 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.[CH2:37]([C:39]1[C:40]([N:48]2[CH2:53][CH2:52][CH:51]([N:54]3[CH2:59][CH2:58][N:57]([S:60]([CH3:63])(=[O:62])=[O:61])[CH2:56][CH2:55]3)[CH2:50][CH2:49]2)=[CH:41][C:42]([O:46][CH3:47])=[C:43]([CH:45]=1)[NH2:44])[CH3:38].Cl>C(O)C(F)(F)F>[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:44][C:43]3[CH:45]=[C:39]([CH2:37][CH3:38])[C:40]([N:48]4[CH2:49][CH2:50][CH:51]([N:54]5[CH2:55][CH2:56][N:57]([S:60]([CH3:63])(=[O:62])=[O:61])[CH2:58][CH2:59]5)[CH2:52][CH2:53]4)=[CH:41][C:42]=3[O:46][CH3:47])[N:7]=2)[CH:18]=[CH:19][C:20]=1[O:34][CH2:35][CH3:36]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 594529415-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamideHCID 594530035-Ethyl-2-methoxy-4-(4-(4-(methylsulfonyl)piperazin-1-yl)piperidin-1-yl)aniline

Product 1

HCID 59452680n-(2,6-Difluorophenyl)-5-(3-{2-[(5-ethyl-2-(methyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}phenyl)amino]-4-pyrimidinyl}imidazo[1,2-a]pyridin-2-yl)-2-(ethyloxy)benzamideYield 70.1%

Reagents, catalysts & solvents 1

HCID 64092,2,2-TrifluoroethanolSolvent

Conditions

Temperature
170 °C

Procedure

A mixture of 5-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamide (Intermediate Example 6) (0.125 g, 0.247 mmol), 5-ethyl-2-(methyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}aniline (0.098 g, 0.247 mmol) and HCl (4N,1,4-Dioxane, 0.12 mL, 0.494 mmol) in trifluoroethanol (8 mL) was heated at 170° C. for 40 min in the microwave. The reaction was quenched with 7 N NH3 in MeOH and then concentrated to dryness. The residue was then dissolved in DCM and concentrated onto silica gel. Purification by flash column chromatography followed by recrystallization from DCM and EtOH afforded the title compound N-(2,6-difluorophenyl)-5-(3-{2-[(5-ethyl-2-(methyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}phenyl)amino]-4-pyrimidinyl}imidazo[1,2-a]pyridin-2-yl)-2-(ethyloxy)benzamide (0.150 g, 67%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 9.76 (s, 1H), 9.30-9.43 (m, 1H), 8.50 (s, 1H), 8.25 (d, J=5.22 Hz, 1H), 8.06 (d, J=2.02 Hz, 1H), 7.74-7.80 (m, 1H), 7.71 (d, J=8.89 Hz, 1H), 7.53 (s, 1H), 7.34-7.49 (m, 2H), 7.28 (d, J=8.43 Hz, 1H), 7.16-7.25 (m, 2H), 6.91-7.00 (m, 1H), 6.83 (s, 1H), 6.58 (d, J=5.04 Hz, 1H), 4.20-4.33 (m, 2H), 3.81 (s, 3H), 3.08-3.16 (m, 4H), 3.00-3.08 (m, 2H), 2.88 (s, 3H), 2.67-2.78 (m, 2H), 2.61-2.66 (m, 4H), 2.56 (q, J=7.51 Hz, 2H), 2.38-2.47 (m, 1H), 1.79-1.92 (m, 2H), 1.52-1.68 (m, 2H), 1.44 (t, J=6.92 Hz, 3H), 1.11 (t, J=7.51 Hz, 3H). MS (M+H, ES+) 866.

Workup

  1. customThe reaction was quenched with 7 N NH3 in MeOH
  2. concentrationconcentrated to dryness
  3. dissolutionThe residue was then dissolved in DCM
  4. concentrationconcentrated onto silica gel
  5. customPurification by flash column chromatography
  6. customfollowed by recrystallization from DCM and EtOH

Sources & evidence

ORD record
ord-86aa8b9a353b4eec81d124e413390fc6
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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