Trifluoroacetic acid → methyl (1S)-1-[({(1R,3S,4S)-4-amino-3-hydroxy-5-phenyl-1-[4-(2-pyridinyl)benzyl]pentyl}amino)carbonyl]-2,2-dimethylpropylcarbamate

HRID 1174106Notes

Reaction equation

HRID 1174106 reaction equation
[CH2:1]([C@H:8]([NH:39]C(=O)OC(C)(C)C)[C@@H:9]([OH:38])[CH2:10][C@H:11]([NH:25][C:26](=[O:37])[C@@H:27]([NH:32][C:33]([O:35][CH3:36])=[O:34])[C:28]([CH3:31])([CH3:30])[CH3:29])[CH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][N:20]=2)=[CH:15][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.FC(F)(F)C(O)=O>ClCCl>[NH2:39][C@@H:8]([CH2:1][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)[C@@H:9]([OH:38])[CH2:10][C@H:11]([NH:25][C:26]([C@@H:27]([NH:32][C:33](=[O:34])[O:35][CH3:36])[C:28]([CH3:31])([CH3:30])[CH3:29])=[O:37])[CH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][N:20]=2)=[CH:15][CH:14]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 42625870tert-butyl (1S,2S,4R)-1-benzyl-2-hydroxy-4-({(2S)-2-[(methoxycarbonyl)amino]-3,3-dimethylbutanoyl}amino)-5-[4-(2-pyridinyl)phenyl]pentylcarbamate

Product 1

HCID 42625467methyl (1S)-1-[({(1R,3S,4S)-4-amino-3-hydroxy-5-phenyl-1-[4-(2-pyridinyl)benzyl]pentyl}amino)carbonyl]-2,2-dimethylpropylcarbamateYield 107.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
25 °C

Procedure

A solution of the product of Example 1G (1.55 g, 2.45 mmol) in dichloromethane (12.5 mL) was treated with trifluoroacetic acid (12.5 mL), stirred at 25° C. for 1 hour and concentrated. The concentrate was partitioned between ethyl acetate and saturated NaHCO3 solution. The organic phase extract was washed with brine, dried over MgSO4, filtered and concentrated to give the title compound (1.4 g) which was used without further purification.

Workup

  1. concentrationconcentrated
  2. customThe concentrate was partitioned between ethyl acetate and saturated NaHCO3 solution
  3. extractionThe organic phase extract
  4. washwas washed with brine
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-cecd059b517f4af4bcafa17b6a093245
Source dataset
uspto-grants-2010_11
Patent number
US07834043B2

Reaction notes

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