Trifluoroacetic acid → (S)-1-[(S)-3-Methyl-2-((S)-2-methylamino-propionylamino)-butyryl]-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid (2-fluoro-5-methyl-phenyl)-amide

HRID 627042Notes

Reaction equation

HRID 627042 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH3:8])=[CH:4][C:3]=1[NH:9][C:10]([C@H:12]1[N:20]([C:21](=[O:40])[C@@H:22]([NH:26][C:27](=[O:39])[C@@H:28]([N:30](C)[C:31](=O)OC(C)(C)C)[CH3:29])[CH:23]([CH3:25])[CH3:24])[C:15]2=[N:16][CH:17]=[CH:18][CH:19]=[C:14]2[CH2:13]1)=[O:11].C(O)(C(F)(F)F)=O>C(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH3:8])=[CH:4][C:3]=1[NH:9][C:10]([C@H:12]1[N:20]([C:21](=[O:40])[C@@H:22]([NH:26][C:27](=[O:39])[C@@H:28]([NH:30][CH3:31])[CH3:29])[CH:23]([CH3:25])[CH3:24])[C:15]2=[N:16][CH:17]=[CH:18][CH:19]=[C:14]2[CH2:13]1)=[O:11]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 131735263tert-butyl (S)-1-((S)-1-((S)-2-(2-fluoro-5-methylphenylcarbamoyl)-2,3-dihydro-1H-pyrrolo[2,3-b]pyridin-1-yl)-3-methyl-1-oxobutan-2-ylamino)-1-oxopropan-2-yl(methyl)carbamate

Product 1

HCID 73443118(S)-1-[(S)-3-Methyl-2-((S)-2-methylamino-propionylamino)-butyryl]-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid (2-fluoro-5-methyl-phenyl)-amideYield 92.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In a 50 mL round-bottomed flask, tert-butyl (S)-1-((S)-1-((S)-2-(2-fluoro-5-methylphenylcarbamoyl)-2,3-dihydro-1H-pyrrolo[2,3-b]pyridin-1-yl)-3-methyl-1-oxobutan-2-ylamino)-1-oxopropan-2-yl(methyl)carbamate (49 mg, 88.2 μmol, Eq: 1.00) was combined with DCM (3 mL) to give a colorless solution. TFA (1.00 mL, 13.0 mmol, Eq: 147) was added. The reaction was stirred at rt for 1 h and then concentrated in vacuo. The residue taken up in DCM, washed with saturated aqueous NaHCO3, dried over Na2SO4 and concentrated in vacuo to give (S)-1-[(S)-3-Methyl-2-((S)-2-methylamino-propionylamino)-butyryl]-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid (2-fluoro-5-methyl-phenyl)-amide as a white foam (37 mg), m/z=456 (M+H).

Workup

  1. customto give a colorless solution
  2. concentrationconcentrated in vacuo
  3. washwashed with saturated aqueous NaHCO3
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-acf2a435f1a045fea4e68e5c06b3f246
Source dataset
uspto-grants-2016_04
Patent number
US09309248B2

Reaction notes

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