Carbon tetrabromide → HCID 68295045, compound

HRID 1854140Notes

Reaction equation

HRID 1854140 reaction equation
[CH:1]1([N:6]2[C:14]3[CH:13]=[C:12]([CH2:15]O)[CH:11]=[C:10]([C:17]([NH:19][CH2:20][C:21]4[C:22](=[O:29])[NH:23][C:24]([CH3:28])=[CH:25][C:26]=4[CH3:27])=[O:18])[C:9]=3[CH:8]=[N:7]2)[CH2:5][CH2:4][CH2:3][CH2:2]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(Br)(Br)(Br)[Br:50]>C(Cl)Cl>[Br:50][CH2:15][C:12]1[CH:11]=[C:10]([C:17]([NH:19][CH2:20][C:21]2[C:22](=[O:29])[NH:23][C:24]([CH3:28])=[CH:25][C:26]=2[CH3:27])=[O:18])[C:9]2[CH:8]=[N:7][N:6]([CH:1]3[CH2:5][CH2:4][CH2:3][CH2:2]3)[C:14]=2[CH:13]=1

Participants

5

Reactant 3

HCID 11205Carbon tetrabromideHCID 11776TriphenylphosphineHCID 68350778HCID 68350778, compound

Product 1

HCID 68295045HCID 68295045, compoundYield 51.84%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

To a stirred solution of 1-cyclopentyl-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-6-(hydroxymethyl)-1H-indazole-4-carboxamide (0.75 g, 1.90 mmol) in DCM (10 mL), triphenyl phosphine (0.998 g, 3.807 mmol) was added at room temperature. The mixture was cooled to 0° C. after 5 minutes then carbon tetrabromide (1.26 g, 3.80 mmol) was added. On completion, reaction mixture was evaporated under reduced pressure and the crude residue purified by column chromatography over silica gel to afford desired 6-(bromomethyl)-1-cyclopentyl-N-((4,6-dimethyl-2-oxo-1,2-dihydro pyridine-3-yl)methyl)-1H-indazole-4-carboxamide (0.45 g, 51.84%).

Workup

  1. customOn completion, reaction mixture
  2. customwas evaporated under reduced pressure
  3. customthe crude residue purified by column chromatography over silica gel

Sources & evidence

ORD record
ord-18cca368aaf44b1cb212d250084f9878
Source dataset
uspto-grants-2015_02
Patent number
US08962620B2

Reaction notes

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