1-Hydroxybenzotriazole → N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-methylphenyl]cyclopent-1-ene-1-carboxamide

HRID 1663849Notes

Reaction equation

HRID 1663849 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([CH:21]=[CH:22][C:23]=1[CH3:24])[O:5][C:6]1[CH:7]=[CH:8][C:9]2[N:10]([CH:12]=[C:13]([NH:15][C:16]([CH:18]3[CH2:20][CH2:19]3)=[O:17])[N:14]=2)[N:11]=1.[C:25]1([C:30](O)=[O:31])[CH2:29][CH2:28][CH2:27][CH:26]=1.ON1C2C=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C>CN(C)C(=O)C>[CH:18]1([C:16]([NH:15][C:13]2[N:14]=[C:9]3[CH:8]=[CH:7][C:6]([O:5][C:4]4[CH:21]=[CH:22][C:23]([CH3:24])=[C:2]([NH:1][C:30]([C:25]5[CH2:29][CH2:28][CH2:27][CH:26]=5)=[O:31])[CH:3]=4)=[N:11][N:10]3[CH:12]=2)=[O:17])[CH2:20][CH2:19]1

Participants

6

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 959641-Cyclopentene-1-carboxylic acidHCID 57505476N-[6-(3-amino-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide

Product 1

HCID 57505587N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-methylphenyl]cyclopent-1-ene-1-carboxamideYield 26.7%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Procedure

Using N-[6-(3-amino-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (200 mg, 0.62 mmol), N,N-dimethylacetamide (4.0 mL), 1-cyclopentenecarboxylic acid (139 mg, 1.24 mmol), O-(benzotriazol-1-yl)-N,N,N′N′-tetramethyluronium hexafluorophosphate (704 mg, 1.86 mmol), 1-hydroxybenzotriazole (251 mg, 1.86 mmol) and N,N-diisopropylethylamine (323 μL, 1.86 mmol), and in the same manner as in Example 219, the title compound (69 mg, 21%) was obtained as a white powder.

Sources & evidence

ORD record
ord-ddebce6e52824099a9afa26bd9d14625
Source dataset
uspto-grants-2011_10
Patent number
US08034812B2

Reaction notes

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