Tetrahydrofuran → 4-chloro-N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-fluorophenyl]-1-methyl-1H-pyrazole-3-carboxamide

HRID 1663935Notes

Reaction equation

HRID 1663935 reaction equation
[Cl:1][C:2]1[C:3]([C:8]([OH:10])=O)=[N:4][N:5]([CH3:7])[CH:6]=1.O1CCCC1.C(Cl)(=O)C(Cl)=O.[NH2:22][C:23]1[CH:24]=[C:25]([CH:42]=[CH:43][C:44]=1[F:45])[O:26][C:27]1[CH:28]=[CH:29][C:30]2[N:31]([CH:33]=[C:34]([NH:36][C:37]([CH:39]3[CH2:41][CH2:40]3)=[O:38])[N:35]=2)[N:32]=1>CN(C)C=O.CN(C)C(=O)C>[Cl:1][C:2]1[C:3]([C:8]([NH:22][C:23]2[CH:24]=[C:25]([O:26][C:27]3[CH:28]=[CH:29][C:30]4[N:31]([CH:33]=[C:34]([NH:36][C:37]([CH:39]5[CH2:41][CH2:40]5)=[O:38])[N:35]=4)[N:32]=3)[CH:42]=[CH:43][C:44]=2[F:45])=[O:10])=[N:4][N:5]([CH3:7])[CH:6]=1

Participants

7

Reactant 4

HCID 8028TetrahydrofuranHCID 65578Oxalyl chlorideHCID 5946854-Chloro-1-methyl-1H-pyrazole-3-carboxylic acidHCID 57505446N-[6-(3-amino-4-fluorophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide

Product 1

HCID 575056734-chloro-N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-fluorophenyl]-1-methyl-1H-pyrazole-3-carboxamideYield 80.2%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideCatalystHCID 31374DimethylacetamideSolvent

Procedure

In the same manner as in Example 259 and using 4-chloro-1-methyl-1H-pyrazole-3-carboxylic acid (130 mg, 0.79 mmol), tetrahydrofuran (5 mL), N,N-dimethylformamide (1 drop), oxalyl chloride (170 μL, 2.0 mmol), N-[6-(3-amino-4-fluorophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (200 mg, 0.61 mmol) and N,N-dimethylacetamide (7 mL) as starting materials, the title compound (230 mg, 80%) was obtained as a white solid.

Sources & evidence

ORD record
ord-a4319ee062414ee4838ec92a350e78d2
Source dataset
uspto-grants-2011_10
Patent number
US08034812B2

Reaction notes

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