2-((2-butoxycarbonylamino-3-(4-fluorophenyl)propionyl)-N-methylamino)-3-methylbutyric acid 2-(3-tert-butyl-4-hydroxyphenyl)-1-(2-pyridylcarbamoyl)ethylamide → 2-((2-amino-3-(4-fluorophenyl)propionyl)-N-methylamino)-3-methylbutyric acid 2-(3-tert-butyl-4-hydroxyphenyl)-1-(2-pyridylcarbamoyl)ethylamide

HRID 1988249Notes

Reaction equation

HRID 1988249 reaction equation
[C:1]([C:5]1[CH:6]=[C:7]([CH2:12][CH:13]([NH:23][C:24](=[O:50])[CH:25]([N:29]([C:31](=[O:49])[CH:32]([NH:41]C(OCCCC)=O)[CH2:33][C:34]2[CH:39]=[CH:38][C:37]([F:40])=[CH:36][CH:35]=2)[CH3:30])[CH:26]([CH3:28])[CH3:27])[C:14](=[O:22])[NH:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=2)[CH:8]=[CH:9][C:10]=1[OH:11])([CH3:4])([CH3:3])[CH3:2]>C(Cl)Cl.C(O)(C(F)(F)F)=O>[C:1]([C:5]1[CH:6]=[C:7]([CH2:12][CH:13]([NH:23][C:24](=[O:50])[CH:25]([N:29]([C:31](=[O:49])[CH:32]([NH2:41])[CH2:33][C:34]2[CH:35]=[CH:36][C:37]([F:40])=[CH:38][CH:39]=2)[CH3:30])[CH:26]([CH3:28])[CH3:27])[C:14](=[O:22])[NH:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=2)[CH:8]=[CH:9][C:10]=1[OH:11])([CH3:3])([CH3:4])[CH3:2]

Participants

4

Reactant 1

HCID 867608962-((2-butoxycarbonylamino-3-(4-fluorophenyl)propionyl)-N-methylamino)-3-methylbutyric acid 2-(3-tert-butyl-4-hydroxyphenyl)-1-(2-pyridylcarbamoyl)ethylamide

Product 1

HCID 867608952-((2-amino-3-(4-fluorophenyl)propionyl)-N-methylamino)-3-methylbutyric acid 2-(3-tert-butyl-4-hydroxyphenyl)-1-(2-pyridylcarbamoyl)ethylamideYield 25.9%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 6422Trifluoroacetic acidSolvent

Procedure

To a solution of 2-((2-butoxycarbonylamino-3-(4-fluorophenyl)propionyl)-N-methylamino)-3-methylbutyric acid 2-(3-tert-butyl-4-hydroxyphenyl)-1-(2-pyridylcarbamoyl)ethylamide (1.67 g, 2.41 mmol) in methylene chloride (30 ml), TFA (5 ml) was added and stirred at room temperature for 1.5 hours. The reaction mixture was evaporated under reduced pressure; the thus obtained residue was mixed with chloroform, washed with a saturated aqueous NaHCO3 solution and saturated brine, dried over anhydrous magnesium sulfate and evaporated to remove the solvent under reduced pressure. The thus obtained residue was subjected to silica gel column chromatography (developing solvent: methanol:aqueous ammonia:methylene chloride=3:0.1:100), giving the titled compound (370 mg).

Workup

  1. customThe reaction mixture was evaporated under reduced pressure
  2. additionthe thus obtained residue was mixed with chloroform
  3. washwashed with a saturated aqueous NaHCO3 solution and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customevaporated
  6. customto remove the solvent under reduced pressure

Sources & evidence

ORD record
ord-efc27513ab194eb58e74e4fce3bf0b94
Source dataset
uspto-grants-2009_06
Patent number
US07553969B1

Reaction notes

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