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

HRID 1174109
Notes
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Reaction equation

HRID 1174109 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
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 42625869tert-butyl (1S,2S,4S)-1-benzyl-2-hydroxy-4-({(2S)-2-[(methoxycarbonyl)amino]-3,3-dimethylbutanoyl}amino)-5-[4-(2-pyridinyl)phenyl]pentylcarbamate

Product 1

HCID 16037867methyl (1S)-1-[({(1S,3S,4S)-4-amino-3-hydroxy-5-phenyl-1-[4-(2-pyridinyl)benzyl]pentyl}amino)carbonyl]-2,2-dimethylpropylcarbamateYield 108.9%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Conditions

Temperature
25 °C

Procedure

A solution of the product of Example 2B (3.5 g, 5.5 mmol) in dichloromethane (40 mL) was treated with trifluoroacetic acid (20 mL), stirred at 25° C. for 1 hour, and concentrated. The concentrate was partitioned between ethyl acetate and saturated NaHCO3 solution. The organic phase was washed with brine, dried over MgSO4, filtered and concentrated to afford the crude product (3.19 g).

Workup

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

Sources & evidence

ORD record
ord-6a299171edcd44568eadd77465c87d8b
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