Tetrahydrofuran → N-{5-[(2-{[(2,2-difluorocyclopropyl)carbonyl]amino]imidazo[1,2-b]pyridazin-6-yl)oxy]-2-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide

HRID 2391395

Reaction equation

HRID 2391395 reaction equation
[F:1][C:2]1([F:8])[CH2:4][CH:3]1[C:5](O)=[O:6].O1CCCC1.C(Cl)(=O)C(Cl)=O.Cl.[NH2:21][C:22]1[N:23]=[C:24]2[CH:29]=[CH:28][C:27]([O:30][C:31]3[CH:32]=[CH:33][C:34]([CH3:47])=[C:35]([NH:37][C:38]([C:40]4[N:44]([CH3:45])[N:43]=[C:42]([CH3:46])[CH:41]=4)=[O:39])[CH:36]=3)=[N:26][N:25]2[CH:48]=1>CN(C)C=O.CN(C)C(=O)C>[F:1][C:2]1([F:8])[CH2:4][CH:3]1[C:5]([NH:21][C:22]1[N:23]=[C:24]2[CH:29]=[CH:28][C:27]([O:30][C:31]3[CH:32]=[CH:33][C:34]([CH3:47])=[C:35]([NH:37][C:38]([C:40]4[N:44]([CH3:45])[N:43]=[C:42]([CH3:46])[CH:41]=4)=[O:39])[CH:36]=3)=[N:26][N:25]2[CH:48]=1)=[O:6]

Participants

7

Reactant 4

HCID 8028TetrahydrofuranHCID 65578Oxalyl chlorideHCID 27828232,2-Difluorocyclopropane-1-carboxylic acidHCID 57505635N-{5-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]-2-methylphenyl)-1,3-dimethyl-1H-pyrazole-5-carboxamide hydrochloride

Product 1

HCID 57505634N-{5-[(2-{[(2,2-difluorocyclopropyl)carbonyl]amino]imidazo[1,2-b]pyridazin-6-yl)oxy]-2-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamideYield 73%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideCatalystHCID 31374DimethylacetamideSolvent

Procedure

In the same manner as in Example 259 and using 2,2-difluorocyclopropanecarboxylic acid (88 mg, 0.60 mmol), tetrahydrofuran (5 mL), N,N-dimethylformamide (1 drop), oxalyl chloride (74 μL, 0.86 mmol), N-{5-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]-2-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide hydrochloride (250 mg, 0.60 mmol) and N,N-dimethylacetamide (7 mL) as starting materials, the title compound (210 mg, 73%) was obtained as a white solid.

Sources & evidence

ORD record
ord-968e8131afb64e3d92c9b0694979bcea
Source dataset
uspto-grants-2012_09
Patent number
US08273741B2

Linked notes

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