p-Toluenesulfonic acid monohydrate → N-(2,6-difluorophenyl)-3-[3-(2-{[4-{4-[4-(2-fluoroethyl)-1-piperazinyl]-1-piperidinyl}-2-(methyloxy)phenyl]amino}-4-pyrimidinyl)-7-(trifluoromethyl)imidazo[1,2-a]pyridin-2-yl]benzamide

HRID 419573Notes

Reaction equation

HRID 419573 reaction equation
Cl[C:2]1[N:7]=[C:6]([C:8]2[N:12]3[CH:13]=[CH:14][C:15]([C:17]([F:20])([F:19])[F:18])=[CH:16][C:11]3=[N:10][C:9]=2[C:21]2[CH:22]=[C:23]([CH:35]=[CH:36][CH:37]=2)[C:24]([NH:26][C:27]2[C:32]([F:33])=[CH:31][CH:30]=[CH:29][C:28]=2[F:34])=[O:25])[CH:5]=[CH:4][N:3]=1.[F:38][CH2:39][CH2:40][N:41]1[CH2:46][CH2:45][N:44]([CH:47]2[CH2:52][CH2:51][N:50]([C:53]3[CH:59]=[CH:58][C:56]([NH2:57])=[C:55]([O:60][CH3:61])[CH:54]=3)[CH2:49][CH2:48]2)[CH2:43][CH2:42]1.O.C1(C)C=CC(S(O)(=O)=O)=CC=1.C[O-].[Na+]>FC(F)(F)CO.CO.C(Cl)Cl.CCCCCC>[F:34][C:28]1[CH:29]=[CH:30][CH:31]=[C:32]([F:33])[C:27]=1[NH:26][C:24](=[O:25])[C:23]1[CH:35]=[CH:36][CH:37]=[C:21]([C:9]2[N:10]=[C:11]3[CH:16]=[C:15]([C:17]([F:20])([F:19])[F:18])[CH:14]=[CH:13][N:12]3[C:8]=2[C:6]2[CH:5]=[CH:4][N:3]=[C:2]([NH:57][C:56]3[CH:58]=[CH:59][C:53]([N:50]4[CH2:49][CH2:48][CH:47]([N:44]5[CH2:43][CH2:42][N:41]([CH2:40][CH2:39][F:38])[CH2:46][CH2:45]5)[CH2:52][CH2:51]4)=[CH:54][C:55]=3[O:60][CH3:61])[N:7]=2)[CH:22]=1

Participants

9

Reactant 4

HCID 521998p-Toluenesulfonic acid monohydrateHCID 10942334Sodium MethoxideHCID 594528983-[3-(2-chloro-4-pyrimidinyl)-7-(trifluoromethyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)benzamideHCID 598602604-[4-[4-(2-Fluoroethyl)-1-piperazinyl]-1-piperidinyl]-2-(methyloxy)aniline

Product 1

HCID 59452611N-(2,6-difluorophenyl)-3-[3-(2-{[4-{4-[4-(2-fluoroethyl)-1-piperazinyl]-1-piperidinyl}-2-(methyloxy)phenyl]amino}-4-pyrimidinyl)-7-(trifluoromethyl)imidazo[1,2-a]pyridin-2-yl]benzamideYield 38%

Reagents, catalysts & solvents 4

HCID 887MethanolSolventHCID 6344DichloromethaneSolventHCID 64092,2,2-TrifluoroethanolSolventHCID 8058HexaneSolvent

Conditions

Temperature
150 °C

Procedure

To 3-[3-(2-chloro-4-pyrimidinyl)-7-(trifluoromethyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)benzamide (110 mg, 0.21 mmol) and 4-{4-[4-(2-fluoroethyl)-1-piperazinyl]-1-piperidinyl}-2-(methyloxy)aniline (Example 57, step E) (63 mg, 0.19 mmol) in 2,2,2-trifluoroethanol (2 mL) was added p-toluenesulfonic acid monohydrate (134 mg, 0.71 mmol). The mixture was stirred and heated on a microwave at 150° C. for 45 min, then cooled to rt. The mixture was neutralized with 0.5M sodium methoxide in MeOH. The mixture was concentrated under vacuum and the residue purified by silica gel chromatography to give a yellow solid. The solid was dissolved in minimal DCM, then hexane was added until a precipitate was formed. The slurry was cooled at −10° C. for 30 min, then poured through a Teflon filter, washing the solids with cold hexanes. The solids were dried under vacuum to give the title compound (59 mg, 0.07 mmol, 38%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6): δ 10.26 (s, 1H), 9.47 (br s, 1H), 8.56 (s, 1H), 8.34 (s, 1H), 8.27 (d, 1H, J=5.32 Hz), 8.24 (s, 1H), 8.08 (d, 1H, J=7.88 Hz), 7.84 (d, 1H, J=7.70 Hz), 7.64 (t, 1H, J=7.79 Hz), 7.31-7.45 (m, 2H), 7.21 (t, 3H, J=8.06 Hz), 6.70-6.72 (m, 1H), 6.47-6.53 (m, 2H), 4.56 (t, 1H, J=4.86 Hz), 4.44 (t, 1H, J=4.86 Hz), 3.80 (s, 3H), 3.71-3.77 (m, 2H), 2.59-2.70 (m, 4H), 2.40-2.55 (m, 8H), 2.25-2.34 (m, 1H), 1.81-1.87 (m, 2H), 1.46-1.56 (m, 2H). MS (ESI): 830 [M+H]+.

Workup

  1. temperaturecooled to rt
  2. concentrationThe mixture was concentrated under vacuum
  3. customthe residue purified by silica gel chromatography
  4. customto give a yellow solid
  5. customwas formed
  6. temperatureThe slurry was cooled at −10° C. for 30 min
  7. filtrationfilter
  8. washwashing the solids with cold hexanes
  9. customThe solids were dried under vacuum

Sources & evidence

ORD record
ord-926e3d6beca74640ba7203235fbb43b6
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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