Trifluoroacetic acid → (4S)-5-(ethylamino)-4-{[(5-{4-[3-fluoro-4-({[(3-methylphenyl)amino]carbonyl}amino)phenoxy]pyridin-2-yl}-1H-pyrrol-3-yl)carbonyl]amino}-5-oxopentanoic acid

HRID 1915067Notes

Reaction equation

HRID 1915067 reaction equation
[CH2:1]([NH:3][C:4](=[O:48])[C@@H:5]([NH:15][C:16]([C:18]1[CH:22]=[C:21]([C:23]2[CH:28]=[C:27]([O:29][C:30]3[CH:35]=[CH:34][C:33]([NH:36][C:37]([NH:39][C:40]4[CH:45]=[CH:44][CH:43]=[C:42]([CH3:46])[CH:41]=4)=[O:38])=[C:32]([F:47])[CH:31]=3)[CH:26]=[CH:25][N:24]=2)[NH:20][CH:19]=1)=[O:17])[CH2:6][CH2:7][C:8]([O:10]C(C)(C)C)=[O:9])[CH3:2].C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH2:1]([NH:3][C:4](=[O:48])[C@@H:5]([NH:15][C:16]([C:18]1[CH:22]=[C:21]([C:23]2[CH:28]=[C:27]([O:29][C:30]3[CH:35]=[CH:34][C:33]([NH:36][C:37]([NH:39][C:40]4[CH:45]=[CH:44][CH:43]=[C:42]([CH3:46])[CH:41]=4)=[O:38])=[C:32]([F:47])[CH:31]=3)[CH:26]=[CH:25][N:24]=2)[NH:20][CH:19]=1)=[O:17])[CH2:6][CH2:7][C:8]([OH:10])=[O:9])[CH3:2]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 67042748tert-butyl (4S)-5-(ethylamino)-4-{[(5-{4-[3-fluoro-4-({[(3-methylphenyl)amino]carbonyl}amino)phenoxy]pyridin-2-yl}-1H-pyrrol-3-yl)carbonyl]amino}-5-oxopentanoate

Product 1

HCID 67042538(4S)-5-(ethylamino)-4-{[(5-{4-[3-fluoro-4-({[(3-methylphenyl)amino]carbonyl}amino)phenoxy]pyridin-2-yl}-1H-pyrrol-3-yl)carbonyl]amino}-5-oxopentanoic acid

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of tert-butyl (4S)-5-(ethylamino)-4-{[(5-{4-[3-fluoro-4-({[(3-methylphenyl)amino]carbonyl}amino)phenoxy]pyridin-2-yl}-1H-pyrrol-3-yl)carbonyl]amino}-5-oxopentanoate (30 mg, 0.046 mmol) in 5 ml of methylene chloride was added 2 ml of TFA. The mixture was stirred at room temperature for 1 hour, and evaporated to dryness. The residue was dissolved in MeOH (3 ml), which was added dropwise into 100 ml of water with vigorous stirring. The precipitates were filtered, washed with water and dried to give (4S)-5-(ethylamino)-4-{[(5-{4-[3-fluoro-4-({[(3-methylphenyl)amino]carbonyl}amino)phenoxy]pyridin-2-yl}-1H-pyrrol-3-yl)carbonyl]amino}-5-oxopentanoic acid as white solid. Yield: 20 mg, 74%.

Workup

  1. customevaporated to dryness
  2. dissolutionThe residue was dissolved in MeOH (3 ml)
  3. additionwhich was added dropwise into 100 ml of water with vigorous stirring
  4. filtrationThe precipitates were filtered
  5. washwashed with water
  6. customdried

Sources & evidence

ORD record
ord-08f1a3cf917d40ca84ecb9e802fbe5d6
Source dataset
uspto-grants-2013_12
Patent number
US08614234B2

Reaction notes

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