Ethyl Acetate → 3-{6-[6-(1-Methyl-1H-pyrazol-4-yl)-imidazo[1,2-b]pyridazin-3-ylmethyl]-imidazo[1,2-a]pyridin-3-yl}-benzonitrile

HRID 69302Notes

Reaction equation

HRID 69302 reaction equation
Br[C:2]1[N:6]2[CH:7]=[C:8]([CH2:11][C:12]3[N:16]4[N:17]=[C:18]([C:21]5[CH:22]=[N:23][N:24]([CH3:26])[CH:25]=5)[CH:19]=[CH:20][C:15]4=[N:14][CH:13]=3)[CH:9]=[CH:10][C:5]2=[N:4][CH:3]=1.[C:27]([C:29]1[CH:30]=[C:31](B(O)O)[CH:32]=[CH:33][CH:34]=1)#[N:28].C([O-])([O-])=O.[Na+].[Na+].CCOC(C)=O>COCCOC.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:26][N:24]1[CH:25]=[C:21]([C:18]2[CH:19]=[CH:20][C:15]3[N:16]([C:12]([CH2:11][C:8]4[CH:9]=[CH:10][C:5]5[N:6]([C:2]([C:33]6[CH:34]=[C:29]([CH:30]=[CH:31][CH:32]=6)[C:27]#[N:28])=[CH:3][N:4]=5)[CH:7]=4)=[CH:13][N:14]=3)[N:17]=2)[CH:22]=[N:23]1

Participants

7

Reactant 4

HCID 8857Ethyl AcetateHCID 10340Sodium CarbonateHCID 27343253-Cyanophenylboronic acidHCID 57917273HCID 57917273, compound

Product 1

HCID 579174043-{6-[6-(1-Methyl-1H-pyrazol-4-yl)-imidazo[1,2-b]pyridazin-3-ylmethyl]-imidazo[1,2-a]pyridin-3-yl}-benzonitrile

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
150 °C

Procedure

3-(3-Bromo-imidazo[1,2-a]pyridin-6-ylmethyl)-6-(1-methyl-1H-pyrazol-4-yl)-imidazo[1,2-b]pyridazine (Example 296, 80 mg, 0.196 mmol) was dissolved in DME (0.653 mL) with 3-cyanophenylboronic acid (28.2 mg, 0.196 mmol), 2 M Na2CO3 solution (0.353 mL, 0.705 mmol) and tetrakis(triphenylphosphine)palladium (11.3 mg, 0.010 mmol). The RM was heated at 150° C. 5 min under microwave irradiations. It was taken up with EtOAc and washed with 10% Na2CO3 solution and brine. The precipitate from the aqueous layer was filtered off and dried to afford the title compound as a grey solid (tR 0.8 min (conditions 2), MH+=431).

Workup

  1. custom5 min
  2. washwashed with 10% Na2CO3 solution and brine
  3. filtrationThe precipitate from the aqueous layer was filtered off
  4. customdried

Sources & evidence

ORD record
ord-db28c7ff3749484faeef4530a43360f5
Source dataset
uspto-grants-2014_09
Patent number
US08822468B2

Reaction notes

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