Diisopropylethylamine → HCID 90273127, compound

HRID 632465Notes

Reaction equation

HRID 632465 reaction equation
[NH2:1][C:2]1[N:10]=[CH:9][C:8]([Br:11])=[CH:7][C:3]=1[C:4]([OH:6])=O.[C:12]([O:16][C:17]([N:19]1[CH2:24][CH2:23][CH:22]([C:25]([NH:27][NH2:28])=[O:26])[CH2:21][CH2:20]1)=[O:18])([CH3:15])([CH3:14])[CH3:13].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[C:12]([O:16][C:17]([N:19]1[CH2:24][CH2:23][CH:22]([C:25]([NH:27][NH:28][C:4]([C:3]2[C:2]([NH2:1])=[N:10][CH:9]=[C:8]([Br:11])[CH:7]=2)=[O:6])=[O:26])[CH2:21][CH2:20]1)=[O:18])([CH3:15])([CH3:13])[CH3:14]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 7374452-Amino-5-bromonicotinic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 22713165tert-Butyl 4-(hydrazinecarbonyl)piperidine-1-carboxylate

Product 1

HCID 90273127HCID 90273127, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 2-amino-5-bromo-nicotinic acid (1.2 g, 5.53 mmol) in DMF (30 mL) were added 4-hydrazinocarbonyl-piperidine-1-carboxylic acid tert-butyl ester (1.5 g, 6.173 mmol), HATU (2.35 g, 6.184 mmol) and DIPEA (4 mL, 23.56 mmol) at RT. The reaction mixture was stirred for 18 h at RT. The reaction mixture was poured into ice-water (30 mL), extracted with ethyl acetate (3×50 mL), organic layer was washed with brine dried over anhydrous sodium sulphate concentrated under reduced pressure. Crude compound was purified by column chromatography using 100-200 mesh silica gel. The column was eluted with 60% EtOAc in petroleum ether to afford the title compound as an off-white solid.

Workup

  1. extractionextracted with ethyl acetate (3×50 mL), organic layer
  2. washwas washed with brine
  3. dry with materialdried over anhydrous sodium sulphate
  4. concentrationconcentrated under reduced pressure
  5. customCrude compound was purified by column chromatography
  6. washThe column was eluted with 60% EtOAc in petroleum ether

Sources & evidence

ORD record
ord-c1db1b1fcbbc435cb467c235564de09d
Source dataset
uspto-grants-2016_04
Patent number
US09321748B2

Reaction notes

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