Dimethylformamide → N-[3-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)phenyl]-5-methyl-1-phenyl-1H-pyrazole-3-carboxamide

HRID 2391203Notes

Reaction equation

HRID 2391203 reaction equation
[CH3:1][C:2]1[N:6]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[N:5]=[C:4]([C:13]([OH:15])=O)[CH:3]=1.CN(C)C=O.C(Cl)(=O)C(Cl)=O.[NH2:27][C:28]1[CH:29]=[C:30]([CH:47]=[CH:48][CH:49]=1)[O:31][C:32]1[CH:33]=[CH:34][C:35]2[N:36]([CH:38]=[C:39]([NH:41][C:42]([CH:44]3[CH2:46][CH2:45]3)=[O:43])[N:40]=2)[N:37]=1>CN(C)C(=O)C.O1CCCC1>[CH:44]1([C:42]([NH:41][C:39]2[N:40]=[C:35]3[CH:34]=[CH:33][C:32]([O:31][C:30]4[CH:29]=[C:28]([NH:27][C:13]([C:4]5[CH:3]=[C:2]([CH3:1])[N:6]([C:7]6[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=6)[N:5]=5)=[O:15])[CH:49]=[CH:48][CH:47]=4)=[N:37][N:36]3[CH:38]=2)=[O:43])[CH2:45][CH2:46]1

Participants

7

Reactant 4

HCID 6228DimethylformamideHCID 65578Oxalyl chlorideHCID 6983885-methyl-1-phenyl-1H-pyrazole-3-carboxylic acidHCID 57386059N-[6-(3-aminophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide

Product 1

HCID 57505468N-[3-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)phenyl]-5-methyl-1-phenyl-1H-pyrazole-3-carboxamideYield 66.2%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 31374DimethylacetamideSolvent

Procedure

Using 5-methyl-1-phenyl-1H-pyrazole-3-carboxylic acid (294 mg, 1.45 mmol), tetrahydrofuran (3.0 mL), N,N-dimethylformamide (30 μL, 0.39 mmol), oxalyl chloride (127 μL, 1.45 mmol), N-[6-(3-aminophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (300 mg, 0.97 mmol) and N,N-dimethylacetamide (6.0 mL), and in the same manner as in Example 255, the title compound (317 mg, 66%) was obtained as a white powder.

Sources & evidence

ORD record
ord-634850e798e4400f830c2e77a3318d66
Source dataset
uspto-grants-2012_09
Patent number
US08273741B2

Reaction notes

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