Triethylamine → (2S,4R)-4-amino-5-biphenyl-4-yl-2-hydroxymethyl-2-methyl-pentanoic acid dimethylcarbamoylmethyl ester

HRID 448625Notes

Reaction equation

HRID 448625 reaction equation
Cl[CH2:2][C:3]([N:5]([CH3:7])[CH3:6])=[O:4].[C:8]1([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH:13]=[CH:12][C:11]([CH2:14][C@@H:15]([NH:24]C(OC(C)(C)C)=O)[CH2:16][C@:17]([CH2:22][OH:23])([CH3:21])[C:18]([OH:20])=[O:19])=[CH:10][CH:9]=1.CCN(CC)CC>CC(C)=O>[CH3:6][N:5]([CH3:7])[C:3]([CH2:2][O:20][C:18](=[O:19])[C@@:17]([CH2:22][OH:23])([CH3:21])[CH2:16][C@H:15]([NH2:24])[CH2:14][C:11]1[CH:12]=[CH:13][C:8]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)=[CH:9][CH:10]=1)=[O:4]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 758862-chloro-N,N-dimethylacetamideHCID 68181022(2S,4R)-5-Biphenyl-4-yl-4-t-butoxycarbonylamino-2-hydroxymethyl-2-methyl-pentanoic acid

Product 1

HCID 68181070(2S,4R)-4-amino-5-biphenyl-4-yl-2-hydroxymethyl-2-methyl-pentanoic acid dimethylcarbamoylmethyl ester

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

2-Chloro-N,N-dimethylacetamide (40 μL, 387 μmol) was added to a mixture of (2S,4R)-5-biphenyl-4-yl-4-t-butoxycarbonylamino-2-hydroxymethyl-2-methyl-pentanoic acid (100 mg, 242 μmol) and Et3N (35 μL, 254 μmol) in acetone (10 mL). The mixture was refluxed for 24 hours and the reaction monitored for completion. When the reaction was complete, the product was purified ((Interchim reverse phase chromatography column) the solvent was removed under vacuum to yield (2S,4R)-4-amino-5-biphenyl-4-yl-2-hydroxymethyl-2-methyl-pentanoic acid dimethylcarbamoylmethyl ester.

Workup

  1. temperatureThe mixture was refluxed for 24 hours
  2. customthe product was purified ((Interchim reverse phase chromatography column) the solvent
  3. customwas removed under vacuum

Sources & evidence

ORD record
ord-e14ef17974ef44c7b08aabd159b27947
Source dataset
uspto-grants-2013_07
Patent number
US08481044B2

Reaction notes

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