Ethylamine hydrochloride → HCID 58324386, compound

HRID 69720Notes

Reaction equation

HRID 69720 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[C:22]([F:23])=[CH:21][C:17]([C:18](O)=[O:19])=[C:16]([F:24])[CH:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.[CH2:26]([NH2:28])[CH3:27].CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C.O>[CH2:26]([NH:28][C:18]([C:17]1[C:16]([F:24])=[CH:15][C:14]([N:11]2[CH2:12][CH2:13][N:8]([C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:7])[CH2:9][CH2:10]2)=[C:22]([F:23])[CH:21]=1)=[O:19])[CH3:27]

Participants

7

Reactant 4

HCID 11198Ethylamine hydrochlorideHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 58324399HCID 58324399, compound

Product 1

HCID 58324386HCID 58324386, compoundYield 89%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

4-(4-(tert-butoxycarbonyl)piperazin-1-yl)-2,5-difluorobenzoic acid (0.021 g, 0.061 mmol) and ethylamine hydrochloride (7.50 mg, 0.092 mmol) were suspended in DMF (Volume: 0.7 mL) and treated with DIPEA (0.054 mL, 0.307 mmol) and 2-(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)-1,1,3,3-tetramethylisouronium hexafluorophosphate(V) (0.047 g, 0.123 mmol). The reaction mixture was stirred at room temperature for 15 min and diluted with water. The precipitate was filtered, washed with water and dried in vacuum to afford tert-butyl 4-(4-(ethylcarbamoyl)-2,5-difluorophenyl)piperazine-1-carboxylate (20.1 mg, 0.054 mmol, 89% yield). ESI-MS: m/z 370 (M+H)+.

Workup

  1. filtrationThe precipitate was filtered
  2. washwashed with water
  3. customdried in vacuum

Sources & evidence

ORD record
ord-1db8557cba934b8e8106b160afbaa209
Source dataset
uspto-grants-2014_09
Patent number
US08822470B2

Reaction notes

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