Triacetoxyperiodinane → N-[(1-methyl-indole-2-cabonyl)valinyl]-3-amino-4-oxo-5-(2,3,5,6-tetrafluorophenyloxy)-pentanoic Acid, tert-butyl Ester

HRID 634950Notes

Reaction equation

HRID 634950 reaction equation
[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[C:3]1[C:11]([NH:13][C@H:14]([C:18]([NH:20][CH:21]([CH:30]([OH:43])[CH2:31][O:32][C:33]1[C:38]([F:39])=[C:37]([F:40])[CH:36]=[C:35]([F:41])[C:34]=1[F:42])[CH2:22][C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])=[O:19])[CH:15]([CH3:17])[CH3:16])=[O:12].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(Cl)Cl>[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[C:3]1[C:11]([NH:13][C@H:14]([C:18]([NH:20][CH:21]([C:30](=[O:43])[CH2:31][O:32][C:33]1[C:34]([F:42])=[C:35]([F:41])[CH:36]=[C:37]([F:40])[C:38]=1[F:39])[CH2:22][C:23]([O:25][C:26]([CH3:28])([CH3:29])[CH3:27])=[O:24])=[O:19])[CH:15]([CH3:17])[CH3:16])=[O:12]

Participants

4

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 86756371N-[(1-methyl-indole-2-carbonyl)valinyl]-3-amino-4-hydroxy-5-(2,3,5,6-tetrafluorophenyloxy)-pentanoic acid, tert-butyl ester

Product 1

HCID 86756372N-[(1-methyl-indole-2-cabonyl)valinyl]-3-amino-4-oxo-5-(2,3,5,6-tetrafluorophenyloxy)-pentanoic Acid, tert-butyl EsterYield 92.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of N-[(1-methyl-indole-2-carbonyl)valinyl]-3-amino-4-hydroxy-5-(2,3,5,6-tetrafluorophenyloxy)-pentanoic acid, tert-butyl ester (141 mg, 0.23 mmol) in CH2Cl2 (5.0 ml) was added Dess-Martin periodinane (128 mg, 0.3 mmol) and the solution stirred for 10 min. at room temperature. The reaction was quenched with Na2S2O4, diluted with EtOAc, washed with NaHCO3, and brine, dried over Na2SO4, filtered and concentrated in vaciio. The crude product was purified by chromatography (1:1 IEtOAc/hexane) to give the titled product as a white solid (129 mg, 92%).

Workup

  1. customThe reaction was quenched with Na2S2O4
  2. additiondiluted with EtOAc
  3. washwashed with NaHCO3, and brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vaciio
  7. customThe crude product was purified by chromatography (1:1 IEtOAc/hexane)

Sources & evidence

ORD record
ord-5bff21c67639462e90e37c5c55f2099d
Source dataset
uspto-grants-2001_02
Patent number
US06184244B2

Reaction notes

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