Dicyclohexylcarbodiimide → US10251893, Cpd 205

HRID 592234Notes

Reaction equation

HRID 592234 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][N:22]=[CH:21][C:20]=1[C:25]1[CH:26]=[CH:27][C:28]([NH2:31])=[N:29][CH:30]=1.C1(N=C=NC2CCCCC2)CCCCC1>CN(C)C1C=CN=CC=1.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:20]4[CH:21]=[N:22][CH:23]=[CH:24][N:19]=4)=[CH:30][N:29]=3)=[O:18])=[CH:10][N:9]=2)[CH:5]=[CH:4][N:3]=1

Participants

6

Reactant 3

HCID 10868DicyclohexylcarbodiimideHCID 584477862-(2',3-Difluoro-2,4'-bipyridin-5-yl)acetic acidHCID 592592255-(Pyrazin-2-yl)pyridin-2-amine

Product 1

HCID 46927365US10251893, Cpd 205

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

A mixture of 2-(2′,3-difluoro-2,4′-bipyridin-5-yl)acetic acid 205-6 (50 mg, 0.2 mmol), 5-(pyrazin-2-yl)pyridin-2-amine 86-3 (34 mg, 0.2 mmol), 1,3-dicyclohexylcarbodiimide (50 mg, 0.24 mmol) and 4-(dimethylamino)pyridine (4 mg, 0.04 mmol) in DMF (0.9 mL) was stirred at room temperature for 10 hours. The crude product was filtered and the filtrate was subjected directly for reverse phase HPLC to give 2-(2′,3-difluoro-2,4′-bipyridin-5-yl)-N-(5-(pyrazin-2-yl)pyridin-2-yl)acetamide 205 as white solid. MS m/z 405.2 (M+1); 1H NMR 400 MHz (DMSO-d6) δ 11.16 (s, 1H), 9.31 (d, 1H), 9.12 (d, 1H), 8.72 (dd, 1H), 8.63 (d, 1H), 8.61-8.60 (m, 1H), 8.52 (dd, 1H), 8.41 (d, 1H), 8.21 (d, 1H), 7.94 (dd, 1H), 7.88 (dd, 1H), 7.64 (s, 1H), 4.01 (s, 2H).

Workup

  1. filtrationThe crude product was filtered

Sources & evidence

ORD record
ord-752632e2e7804f55bbb970b6f16457ad
Source dataset
uspto-grants-2016_01
Patent number
US09238646B2

Reaction notes

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