Ammonia → N-(2,6-Difluorophenyl)-5-(3-(2-(5-ethyl-4-(4-(4-(methanesulfonyl)piperazin-1-yl)piperidin-1-yl)-2-methoxyanilino)pyrimidin-4-yl)imidazo(1,2-a)pyridin-2-yl)-2-methoxybenzamide

HRID 419652Notes

Reaction equation

HRID 419652 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.[CH2:36]([C:38]1[C:39]([N:47]2[CH2:52][CH2:51][CH:50]([N:53]3[CH2:58][CH2:57][N:56]([S:59]([CH3:62])(=[O:61])=[O:60])[CH2:55][CH2:54]3)[CH2:49][CH2:48]2)=[CH:40][C:41]([O:45][CH3:46])=[C:42]([CH:44]=1)[NH2:43])[CH3:37].Cl.N>C(O)C(F)(F)F.CO>[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:43][C:42]3[CH:44]=[C:38]([CH2:36][CH3:37])[C:39]([N:47]4[CH2:48][CH2:49][CH:50]([N:53]5[CH2:54][CH2:55][N:56]([S:59]([CH3:62])(=[O:61])=[O:60])[CH2:57][CH2:58]5)[CH2:51][CH2:52]4)=[CH:40][C:41]=3[O:45][CH3:46])[N:7]=2)[CH:18]=[CH:19][C:20]=1[O:34][CH3:35]

Participants

7

Reactant 4

HCID 222AmmoniaHCID 313Hydrochloric AcidHCID 594525905-(3-(2-chloropyrimidin-4-yl)imidazo[1,2-a]pyridin-2-yl)-N-(2,6-difluorophenyl)-2-methoxybenzamideHCID 594530035-Ethyl-2-methoxy-4-(4-(4-(methylsulfonyl)piperazin-1-yl)piperidin-1-yl)aniline

Product 1

HCID 25124816N-(2,6-Difluorophenyl)-5-(3-(2-(5-ethyl-4-(4-(4-(methanesulfonyl)piperazin-1-yl)piperidin-1-yl)-2-methoxyanilino)pyrimidin-4-yl)imidazo(1,2-a)pyridin-2-yl)-2-methoxybenzamideYield 70.7%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 64092,2,2-TrifluoroethanolSolvent

Conditions

Temperature
85 °C

Procedure

A mixture of 5-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(methyloxy)benzamide (Intermediate Example 2) (23.0 g, 46.8 mmol), 5-ethyl-2-(methyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}aniline (Example 206, Step B) (18.6 g, 46.8 mmol) and HCl (4N,1,4-Dioxane, 23.4 mL, 93.6 mmol) in trifluoroethanol (200 mL) was heated in a sealed vessel at 85° C. for 48 h. After cooling to rt, the reaction mixture was treated with an excess of 7N NH3 in MeOH and then subjected to filtration. The filtrate was concentrated onto silica gel and purified by flash chromatography. The chromatographed product was dissolved in DCM and treated with an excess of diethyl ether. The resultant bright yellow precipitate was collected by filtration and then recrystallized from DCM and EtOH to afford 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-(methyloxy)benzamide (28.2 g, 67%).

Workup

  1. temperatureAfter cooling to rt
  2. filtrationsubjected to filtration
  3. concentrationThe filtrate was concentrated onto silica gel
  4. custompurified by flash chromatography
  5. dissolutionThe chromatographed product was dissolved in DCM
  6. additiontreated with an excess of diethyl ether
  7. filtrationThe resultant bright yellow precipitate was collected by filtration
  8. customrecrystallized from DCM and EtOH

Sources & evidence

ORD record
ord-225fac678df44d45be407540a30a77cb
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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