Isobutyric Acid → HCID 57386315, compound

HRID 2391500Notes

Reaction equation

HRID 2391500 reaction equation
[NH2:1][C:2]1[N:3]=[C:4]2[CH:9]=[CH:8][C:7]([O:10][C:11]3[CH:12]=[C:13]([NH:17][C:18](=[O:29])[C:19]4[CH:24]=[CH:23][CH:22]=[C:21]([C:25]([F:28])([F:27])[F:26])[CH:20]=4)[CH:14]=[CH:15][CH:16]=3)=[N:6][N:5]2[CH:30]=1.[CH3:31][CH:32]([CH3:36])[C:33](O)=[O:34].Cl.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1.C(N(CC)CC)C>CN(C)C=O>[C:33]([NH:1][C:2]1[N:3]=[C:4]2[CH:9]=[CH:8][C:7]([O:10][C:11]3[CH:12]=[C:13]([NH:17][C:18](=[O:29])[C:19]4[CH:24]=[CH:23][CH:22]=[C:21]([C:25]([F:28])([F:27])[F:26])[CH:20]=4)[CH:14]=[CH:15][CH:16]=3)=[N:6][N:5]2[CH:30]=1)(=[O:34])[CH:32]([CH3:36])[CH3:31]

Participants

7

Reactant 5

HCID 6590Isobutyric AcidHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 57385788N-{3-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]phenyl}-3-(trifluoromethyl)benzamide

Product 1

HCID 57386315HCID 57386315, compoundYield 42.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Using N-{3-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]phenyl}-3-(trifluoromethyl)benzamide (150 mg, 0.363 mmol), 2-methylpropanoic acid (50 μL, 0.544 mmol), N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride (104 mg, 0.544 mmol), 1-hydroxybenzotriazole (73 mg, 0.544 mmol), triethylamine (76 μL, 0.544 mmol) and N,N-dimethylformamide (5 ml) as starting materials and in the same manner as in Example 380, the title compound (74 mg, 42%) was obtained as a pale-green powder.

Sources & evidence

ORD record
ord-a17eef6178cc401aabe6068cfd333306
Source dataset
uspto-grants-2012_09
Patent number
US08273741B2

Reaction notes

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