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

HRID 1174172
Notes
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Reaction equation

HRID 1174172 reaction equation
[CH2:1]([C@H:8]([NH:39]C(=O)OC(C)(C)C)[CH2:9][C@H:10]([OH:38])[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)[CH2:9][C@H:10]([OH:38])[C@@H:11]([NH:25][C:26]([C@@H:27]([NH:32][C:33](=[O:34])[O:35][CH3:36])[C:28]([CH3:30])([CH3:31])[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
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 42626173tert-butyl (1S,3S,4S)-1-benzyl-3-hydroxy-4-({(2S)-2-[(methoxycarbonyl)amino]-3,3-dimethylbutanoyl}amino)-5-[4-(2-pyridinyl)phenyl]pentylcarbamate

Product 1

HCID 42625793methyl (1S)-1-[({(1S,2S,4S)-4-amino-2-hydroxy-5-phenyl-1-[4-(2-pyridinyl)benzyl]pentyl}amino)carbonyl]-2,2-dimethylpropylcarbamate

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Conditions

Temperature
25 °C

Procedure

A solution containing the product from Example 23R (0.34 g, 0.54 mmol) in dichloromethane (5 mL) was treated with trifluoroacetic acid (5 mL), stirred at 25° C. for 1 hour, and concentrated. The residue was partitioned between dichloromethane and saturated NaHCO3 solution. The organic phase was washed with brine, dried over MgSO4, filtered and concentrated. The crude product (0.251 g) was used without further purification.

Workup

  1. concentrationconcentrated
  2. customThe residue was partitioned between dichloromethane and saturated NaHCO3 solution
  3. washThe organic phase was washed with brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude product (0.251 g) was used without further purification

Sources & evidence

ORD record
ord-554a0bd49577422ab0e6463db65d3fb1
Source dataset
uspto-grants-2010_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07834043B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes