Potassium Carbonate → HCID 59716766, compound

HRID 2224218Notes

Reaction equation

HRID 2224218 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[N:12][N:11]3[C:14](=[O:17])[NH:15][N:16]=[C:10]3[C:9]=2[C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)=[CH:4][CH:3]=1.Cl[CH2:26][C:27]([NH:29][C:30]1[CH:35]=[CH:34][C:33]([C:36]([F:39])([F:38])[F:37])=[CH:32][CH:31]=1)=[O:28].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.C(OCC)(=O)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[N:12][N:11]3[C:14](=[O:17])[N:15]([CH2:26][C:27]([NH:29][C:30]4[CH:35]=[CH:34][C:33]([C:36]([F:37])([F:38])[F:39])=[CH:32][CH:31]=4)=[O:28])[N:16]=[C:10]3[C:9]=2[C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 27364642-chloro-N-[4-(trifluoromethyl)phenyl]acetamideHCID 111641617,8-bis(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one

Product 1

HCID 59716766HCID 59716766, compoundYield 81%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

A solution of 7,8-bis(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one, (30 mg, 0.084 mmol), prepared as described in Example 1, 2-chloro-N-(4-(trifluoromethyl)phenyl)acetamide (22 mg, 0.092 mmol), K2CO3 (35 mg, 0.25 mmol) in DMF (1 ml), was heated at 80° C. for 1 hour. After this time, the solution was cooled to RT and diluted with ethyl acetate. The resultant solution was then washed with water. The organic layer was dried over Na2SO4, filtered and concentrated. The crude material was purified by preparative HPLC to give the title compound, 2-(7,8-bis(4-chlorophenyl)-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide (38 mg, 81%) as a yellow solid. MS M+H=558; 1H NMR (CDCl3) δ 8.26 (1H), 7.60 (2H), 7.38-7.20 (8H), 7.11 (2H), 5.07 (2H).

Workup

  1. temperatureAfter this time, the solution was cooled to RT
  2. washThe resultant solution was then washed with water
  3. dry with materialThe organic layer was dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude material was purified by preparative HPLC

Sources & evidence

ORD record
ord-d4763b99867a47958256f20ff8cc5cc9
Source dataset
uspto-grants-2008_05
Patent number
US07378418B2

Reaction notes

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