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

HRID 419612Notes

Reaction equation

HRID 419612 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.[Cl:37][C:38]1[C:39]([N:47]2[CH2:52][CH2:51][N:50]([CH2:53][CH2:54][S:55]([CH3:58])(=[O:57])=[O:56])[CH2:49][CH2:48]2)=[CH:40][C:41]([O:45][CH3:46])=[C:42]([CH:44]=1)[NH2:43].C1(C)C=CC(S([O-])(=O)=O)=CC=1.[NH+]1C=CC=CC=1.N>CC(O)C.CO>[Cl:37][C:38]1[C:39]([N:47]2[CH2:52][CH2:51][N:50]([CH2:53][CH2:54][S:55]([CH3:58])(=[O:57])=[O:56])[CH2:49][CH2:48]2)=[CH:40][C:41]([O:45][CH3:46])=[C:42]([NH:43][C:2]2[N:7]=[C:6]([C:8]3[N:12]4[CH:13]=[CH:14][CH:15]=[CH:16][C:11]4=[N:10][C:9]=3[C:17]3[CH:18]=[CH:19][C:20]([O:34][CH2:35][CH3:36])=[C:21]([CH:33]=3)[C:22]([NH:24][C:25]3[C:30]([F:31])=[CH:29][CH:28]=[CH:27][C:26]=3[F:32])=[O:23])[CH:5]=[CH:4][N:3]=2)[CH:44]=1

Participants

7

Reactant 4

HCID 222AmmoniaHCID 466102Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 594528825-Chloro-2-(methyloxy)-4-{4-[2-(methylsulfonyl)ethyl]-1-piperazinyl}anilineHCID 594529415-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamide

Product 1

HCID 594527535-(3-(2-[(5-chloro-2-(methyloxy)-4-{4-[2-(methylsulfonyl)ethyl]-1-piperazinyl}phenyl)amino]-4-pyrimidinyl}imidazo[1,2-a]pyridin-2-yl)-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamideYield 38%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 3776IsopropanolSolvent

Conditions

Temperature
80 °C

Procedure

In a 10 mL vial with septum cap, 5-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamide (Intermediate Example 6) (0.200 g, 0.395 mmol), 5-chloro-2-(methyloxy)-4-{4-[2-(methylsulfonyl)ethyl]-1-piperazinyl}aniline (0.165 g, 0.474 mmol) were taken up in iPrOH (3 mL) and pyridinium p-toluenesulfonate (0.238 g, 0.949 mmol) was added. The vial was sealed and heated to 80° C. overnight. When reaction was complete by MS, it was cooled to rt, neutralized with 7N ammonia in MeOH, absorbed onto silica gel and flash chromatographed. Fractions containing the desired product were concentrated and the resulting solid was triturated with diethyl ether, filtered and air dried to give the title compound (0.12 g, 0.15 mmol, 37%). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.71 (s, 1H), 9.38 (dd, J=4.4, 1.1 Hz, 1H), 8.53 (s, 1H), 8.25 (d, J=5.3 Hz, 1H), 8.02 (d, J=0.4 Hz, 1H), 7.87 (s, 1H), 7.63-7.79 (m, 2H), 7.28-7.50 (m, 2H), 7.10-7.28 (m, 3H), 6.97 (t, J=6.9 Hz, 1H), 6.82 (s, 1H), 6.60 (d, J=5.2 Hz, 1H), 4.23 (q, J=6.7 Hz, 2H), 3.83 (s, 3H), 3.27-3.34 (m, 2H), 3.03 (s, 3H), 2.93-3.01 (m, 4H), 2.75 (t, J=6.6 Hz, 2H), 2.51-2.64 (m, 4H), 1.40 (t, J=6.8 Hz, 3H). MS (M+H, ES+) 817.

Workup

  1. customIn a 10 mL vial with septum cap
  2. customThe vial was sealed
  3. customWhen reaction
  4. temperaturewas cooled to rt
  5. customabsorbed onto silica gel and flash
  6. customchromatographed
  7. additionFractions containing the desired product
  8. concentrationwere concentrated
  9. customthe resulting solid was triturated with diethyl ether
  10. filtrationfiltered
  11. customair dried

Sources & evidence

ORD record
ord-25435685944d41e9892ff5674f203ddd
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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