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

HRID 2391236Notes

Reaction equation

HRID 2391236 reaction equation
[CH3:1][C:2]1[O:6][N:5]=[C:4]([C:7]([OH:9])=O)[CH:3]=1.C(Cl)(=O)C(Cl)=O.[NH2:16][C:17]1[CH:18]=[C:19]([CH:36]=[CH:37][CH:38]=1)[O:20][C:21]1[CH:22]=[CH:23][C:24]2[N:25]([CH:27]=[C:28]([NH:30][C:31]([CH:33]3[CH2:35][CH2:34]3)=[O:32])[N:29]=2)[N:26]=1.C(N(CC)CC)C>CN(C)C=O.O1CCCC1>[CH:33]1([C:31]([NH:30][C:28]2[N:29]=[C:24]3[CH:23]=[CH:22][C:21]([O:20][C:19]4[CH:18]=[C:17]([NH:16][C:7]([C:4]5[CH:3]=[C:2]([CH3:1])[O:6][N:5]=5)=[O:9])[CH:38]=[CH:37][CH:36]=4)=[N:26][N:25]3[CH:27]=2)=[O:32])[CH2:34][CH2:35]1

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 65578Oxalyl chlorideHCID 769473-Methyl-5-isoxazolecarboxylic acidHCID 57386059N-[6-(3-aminophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide

Product 1

HCID 57505500N-[3-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)phenyl]-5-methylisoxazole-3-carboxamideYield 58%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideCatalystHCID 8028TetrahydrofuranSolvent

Procedure

Using 5-methylisoxazole-3-carboxylic acid (87 mg, 0.679 mmol), N,N-dimethylformamide (1 drop), oxalyl chloride (75.8 μL, 0.88 mmol), N-[6-(3-aminophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (140 mg, 0.453 mmol), triethylamine (138 mg, 1.36 mmol) and tetrahydrofuran (15 mL) as starting materials and in the same manner as in Example 109, the title compound (109 mg, 58%) was obtained as a white powder.

Sources & evidence

ORD record
ord-0a3734c5ff9b455aa654b59dd3e925c2
Source dataset
uspto-grants-2012_09
Patent number
US08273741B2

Reaction notes

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