Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) → US10251893, Cpd 210

HRID 592245

Reaction equation

HRID 592245 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([C:8]2[C:13]([F:14])=[CH:12][C:11]([CH2:15][C:16]([OH:18])=O)=[CH:10][N:9]=2)[CH:5]=[CH:4][N:3]=1.[N:19]1[CH:24]=[CH:23][CH:22]=[C:21]([C:25]2[CH:26]=[CH:27][C:28]([NH2:31])=[N:29][CH:30]=2)[N:20]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C>[F:1][C:2]1[CH:7]=[C:6]([C:8]2[C:13]([F:14])=[CH:12][C:11]([CH2:15][C:16]([NH:31][C:28]3[CH:27]=[CH:26][C:25]([C:21]4[N:20]=[N:19][CH:24]=[CH:23][CH:22]=4)=[CH:30][N:29]=3)=[O:18])=[CH:10][N:9]=2)[CH:5]=[CH:4][N:3]=1

Participants

5

Reactant 3

HCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 584476635-(Pyridazin-3-yl)pyridin-2-amineHCID 584477862-(2',3-Difluoro-2,4'-bipyridin-5-yl)acetic acid

Product 1

HCID 46927367US10251893, Cpd 210

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 2-(2′,3-difluoro-2,4′-bipyridin-5-yl)acetic acid 205-6 (25 mg, 0.1 mmol), 5-(pyridazin-3-yl)pyridin-2-amine 145-3 (17 mg, 0.1 mmol), o-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (HATU, 38 mg, 0.1 mmol) were added DMF (0.5 mL) and diispropylethyl amine (DIEA, 0.05 mL, 0.3 mmol) and the mixture was stirred at room temperature overnight. The crude DMF solution was directly purified by reverse phase HPLC to give 2-(2′,3-difluoro-2,4′-bipyridin-5-yl)-N-(5-(pyridazin-3-yl)pyridin-2-yl)acetamide 210 as white solid. MS m/z 405.1 (M+1); 1H NMR 400 MHz (DMSO-d6) δ 11.18 (s, 1H), 9.23 (d, 1H), 9.14 (d, 1H), 8.61 (m, 1H), 8.56 (dd, 1H), 8.41 (d, 1H), 8.29 (dd, 1H), 8.23 (d, 1H), 7.95 (dd, 1H), 7.91-7.86 (m, 1H), 7.81 (dd, 1H), 7.65 (s, 1H), 4.02 (s, 2H).

Workup

  1. customThe crude DMF solution was directly purified by reverse phase HPLC

Sources & evidence

ORD record
ord-0a776ac682fb4fc091295747920c11ff
Source dataset
uspto-grants-2016_01
Patent number
US09238646B2

Linked notes

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