p-Toluenesulfonic acid → N-(2,6-difluorophenyl)-3-[3-(2-{[4-[4-(dimethylamino)-1-piperidinyl]-2-(methyl-oxy)phenyl]amino}-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]benzamide

HRID 419377Notes

Reaction equation

HRID 419377 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.[NH2:34][C:35]1[CH:40]=[CH:39][C:38]([N:41]2[CH2:46][CH2:45][CH:44]([N:47]([CH3:49])[CH3:48])[CH2:43][CH2:42]2)=[CH:37][C:36]=1[O:50][CH3:51].C1(C)C=CC(S(O)(=O)=O)=CC=1>CC(O)C.C(Cl)Cl>[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:34][C:35]3[CH:40]=[CH:39][C:38]([N:41]4[CH2:46][CH2:45][CH:44]([N:47]([CH3:48])[CH3:49])[CH2:43][CH2:42]4)=[CH:37][C:36]=3[O:50][CH3:51])[N:7]=2)[CH:18]=1

Participants

6

Reactant 3

HCID 6101p-Toluenesulfonic acidHCID 574161531-(4-amino-3-methoxyphenyl)-N,N-dimethylpiperidin-4-amineHCID 594529693-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-benzamide

Product 1

HCID 59452719N-(2,6-difluorophenyl)-3-[3-(2-{[4-[4-(dimethylamino)-1-piperidinyl]-2-(methyl-oxy)phenyl]amino}-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]benzamideYield 77.9%

Reagents, catalysts & solvents 2

HCID 3776IsopropanolSolventHCID 6344DichloromethaneSolvent

Procedure

3-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-benzamide (Intermediate Example 1) (140 mg, 0.30 mmol), 1-[4-amino-3-(methyloxy)phenyl]-N,N-dimethyl-4-piperidinamine (67 mg, 0.27 mmol) and p-toluenesulfonic acid (140 mg, 0.71 mmol) in iPrOH was heated in the microwave at 180° C. for 13.5 min. The mixture was dissolved in DCM and concentrated onto silica gel. The crude material was purified by flash column chromatography to give the title compound (142 mg, 70%). 1H NMR (400 MHz, DMSO-d6) δ 10.23 (s, 1H), 9.40 (s, 1H), 8.45 (s, 1H), 8.33 (s, 1H), 8.20 (d, J=5.2 Hz, 1H), 8.05 (d, J=8.0 Hz, 1H), 7.81 (d, J=7.6 Hz, 1H), 7.72 (d, J=8.8 Hz, 1H), 7.60 (t, J=7.6 Hz, 1H), 7.48-7.36 (m, 3H), 7.20 (t, J=8.2 Hz, 2H), 6.97 (t, J=6.8 Hz, 1H), 6.67 (m, 1H), 6.49-6.45 (m, 2H), 3.79 (s, 3H), 3.70 (d, J=12.4 Hz, 2H), 2.68-2.63 (m, 2H), 2.18 (s, 7H), 1.84-1.81 (m, 2H), 1.52-1.44 (m, 2H). MS (ESI) m/z=675 [M+H]+.

Workup

  1. concentrationconcentrated onto silica gel
  2. customThe crude material was purified by flash column chromatography

Sources & evidence

ORD record
ord-d9b7fda21d9f4b00b242b7c576fc2a57
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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