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

HRID 419426
Notes
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Reaction equation

HRID 419426 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]=[C:19]([CH:31]=[CH:32][CH:33]=2)[C:20]([NH:22][C:23]2[C:28]([F:29])=[CH:27][CH:26]=[CH:25][C:24]=2[F:30])=[O:21])[CH:5]=[CH:4][N:3]=1.[F:34][CH2:35][CH2:36][N:37]1[CH2:42][CH2:41][N:40]([CH:43]2[CH2:48][CH2:47][N:46]([C:49]3[C:55]([O:56][CH3:57])=[CH:54][C:52]([NH2:53])=[C:51]([O:58][CH3:59])[CH:50]=3)[CH2:45][CH2:44]2)[CH2:39][CH2:38]1.N>CC(O)C.Cl.CO>[F:30][C:24]1[CH:25]=[CH:26][CH:27]=[C:28]([F:29])[C:23]=1[NH:22][C:20](=[O:21])[C:19]1[CH:31]=[CH:32][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:53][C:52]3[CH:54]=[C:55]([O:56][CH3:57])[C:49]([N:46]4[CH2:45][CH2:44][CH:43]([N:40]5[CH2:39][CH2:38][N:37]([CH2:36][CH2:35][F:34])[CH2:42][CH2:41]5)[CH2:48][CH2:47]4)=[CH:50][C:51]=3[O:58][CH3:59])[N:7]=2)[CH:18]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 222AmmoniaHCID 594526854-{4-[4-(2-Fluoroethyl)-1-piperazinyl]-1-piperidinyl}-2,5-bis(methyloxy)anilineHCID 594529693-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-benzamide

Product 1

HCID 59452735N-(2,6-difluorophenyl)-3-[3-(2-{[4-{4-[4-(2-fluoroethyl)-1-piperazinyl]-1-piperidinyl}-2,5-bis(methyloxy)phenyl]amino}-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]benzamide
Yield 32.1%

Reagents, catalysts & solvents 3

HCID 313Hydrochloric AcidCatalystHCID 887MethanolSolventHCID 3776IsopropanolSolvent

Conditions

Temperature
180 °C

Procedure

In a 5 mL microwave vial with septum cap, 3-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-benzamide (Intermediate Example 1) (0.200 g, 0.433 mmol), 4-{4-[4-(2-fluoroethyl)-1-piperazinyl]-1-piperidinyl}-2,5-bis(methyloxy)-aniline (0.190 g, 0.520 mmol) were taken up in iPrOH (3 mL) and concentrated HCl (4 drops) was added. The vial was sealed and heated in the microwave at 180° C. for 40 min. Reaction was complete by MS, it was cooled rt, neutralized with 7N ammonia in MeOH, and concentrated in vacuo. The resulting residue was taken up in DCM and purified by column chromatography using basic alumina followed by silica gel flash chromatography. The desired fractions were concentrated and the resulting solid was triturated with DCM and hexane, filtered and vacuum dried to give the title compound (0.110 g, 32%). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.24 (s, 1H), 8.52 (s, 1H), 8.33 (s, 1H), 8.24 (d, J=5.1 Hz, 1H), 8.04 (d, J=7.9 Hz, 1H), 7.83 (d, J=7.9 Hz, 1H), 7.73 (d, J=9.0 Hz, 1H), 7.61 (t, J=7.8 Hz, 1H), 7.26-7.53 (m, 3H), 7.13-7.27 (m, 2H), 6.84-7.08 (m, 1H), 6.66 (s, 1H), 6.50 (d, J=5.1 Hz, 1H), 4.56 (t, J=4.9 Hz, 1H), 4.45 (t, J=4.9 Hz, 1H), 3.76 (s, 3H), 3.64 (s, 3H), 3.36-3.53 (m, 2H), 2.37-2.74 (m, 12H), 2.13-2.36 (m, 1H), 1.70-1.94 (m, 2H), 1.39-1.69 (m, 2H). MS (M+H, ES+) 792.

Workup

  1. customIn a 5 mL microwave vial with septum cap
  2. customThe vial was sealed
  3. customReaction
  4. temperaturewas cooled rt
  5. concentrationconcentrated in vacuo
  6. custompurified by column chromatography
  7. concentrationThe desired fractions were concentrated
  8. customthe resulting solid was triturated with DCM and hexane
  9. filtrationfiltered
  10. customvacuum dried

Sources & evidence

ORD record
ord-f86cb9887b244c3aaa9e724cb32c0916
Source dataset
uspto-grants-2012_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08093239B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes