Diisopropylethylamine → 1-{1-[6-(3,4-Dimethyl-2-oxo-2,3-dihydro-benzoxazole-6-carbonyl)-pyrimidin-4-yl]-piperidin-4-yl}-1,3-dihydro-imidazo[4,5-b]pyridin-2-one

HRID 469376Notes

Reaction equation

HRID 469376 reaction equation
Cl.Cl.[NH:3]1[CH2:8][CH2:7][CH:6]([N:9]2[C:17]3[C:12](=[N:13][CH:14]=[CH:15][CH:16]=3)[NH:11][C:10]2=[O:18])[CH2:5][CH2:4]1.Cl[C:20]1[N:25]=[CH:24][N:23]=[C:22]([C:26]([C:28]2[CH:38]=[C:37]([CH3:39])[C:31]3[N:32]([CH3:36])[C:33](=[O:35])[O:34][C:30]=3[CH:29]=2)=[O:27])[CH:21]=1.CCN(C(C)C)C(C)C>CN(C=O)C>[CH3:36][N:32]1[C:31]2[C:37]([CH3:39])=[CH:38][C:28]([C:26]([C:22]3[N:23]=[CH:24][N:25]=[C:20]([N:3]4[CH2:4][CH2:5][CH:6]([N:9]5[C:17]6[C:12](=[N:13][CH:14]=[CH:15][CH:16]=6)[NH:11][C:10]5=[O:18])[CH2:7][CH2:8]4)[CH:21]=3)=[O:27])=[CH:29][C:30]=2[O:34][C:33]1=[O:35]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 222931811-(piperidin-4-yl)-1H,2H,3H-imidazo[4,5-b]pyridin-2-one dihydrochlorideHCID 581811626-(6-chloropyrimidine-4-carbonyl)-3,4-dimethyl-3H-benzoxazol-2-one

Product 1

HCID 252694601-{1-[6-(3,4-Dimethyl-2-oxo-2,3-dihydro-benzoxazole-6-carbonyl)-pyrimidin-4-yl]-piperidin-4-yl}-1,3-dihydro-imidazo[4,5-b]pyridin-2-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

72.8 mg (0.25 mmol) 1-piperidin-4-yl-1,3-dihydroimidazo[4,5-b]pyridin-2-one-dihydrochloride, 75 mg (0.25 mmol) 6-(6-chloropyrimidine-4-carbonyl)-3,4-dimethyl-3H-benzoxazol-2-one and 0.22 mL (1.25 mmol) DIPEA were stirred in 2 mL DMF for 2 h at RT. The mixture was purified by preparative HPLC-MS. The fractions containing the product were combined, the organic solvent was eliminated i. vac. and the aqueous phase remaining was neutralised with a 4N aqueous NaOH solution. The precipitate was suction filtered, washed with water and dried in the CAD.

Workup

  1. customThe mixture was purified by preparative HPLC-MS
  2. additionThe fractions containing the product
  3. filtrationfiltered
  4. washwashed with water
  5. customdried in the CAD

Sources & evidence

ORD record
ord-afa51c9ecbc24d8494d07621183296e2
Source dataset
uspto-grants-2014_01
Patent number
US08629137B2

Reaction notes

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