4-Bromoaniline → HCID 31775116, compound

HRID 1510228Notes

Reaction equation

HRID 1510228 reaction equation
[Br:1][C:2]1[CH:8]=[CH:7][C:5]([NH2:6])=[CH:4][CH:3]=1.[C:9]([O:13][C:14]([NH:16][C@@H:17]([CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)[C:18](O)=[O:19])=[O:15])([CH3:12])([CH3:11])[CH3:10].C(N(C(C)C)CC)(C)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1>CN(C)C=O.O>[CH2:21]([C@H:17]([NH:16][C:14](=[O:15])[O:13][C:9]([CH3:11])([CH3:10])[CH3:12])[C:18]([NH:6][C:5]1[CH:7]=[CH:8][C:2]([Br:1])=[CH:3][CH:4]=1)=[O:19])[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1

Participants

7

Reactant 4

HCID 78074-BromoanilineHCID 77857L-Phenylalanine, N-[(1,1-dimethylethoxy)carbonyl]-HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)2×

Product 1

HCID 31775116HCID 31775116, compoundYield 97.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 4-bromoaniline (1.1 g), (2S)-2-[(tert-butoxycarbonyl)amino]-3-phenylpropanoic acid (1.87 g) and diisopropylethylamine (1.82 g) in N,N-dimethylformamide (30 mL) was added (O-(7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate) (HATU) (2.68 g) and the mixture was stirred for 24 hours. Water was added and the mixture was extracted with ethyl acetate. The separated organic layer was washed with brine, dried over magnesium sulfate, and evaporated in vacuo. The residue was purified by column chromatography on silica gel to afford tert-butyl {(1S)-1-benzyl-2-[(4-bromophenyl)amino]-2-oxoethyl}carbamate (2.62 g).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe separated organic layer was washed with brine
  3. dry with materialdried over magnesium sulfate
  4. customevaporated in vacuo
  5. customThe residue was purified by column chromatography on silica gel

Sources & evidence

ORD record
ord-37d62b93ed1c4141a4c887b2de803401
Source dataset
uspto-grants-2012_07
Patent number
US08211919B2

Reaction notes

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