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

HRID 2297065Notes

Reaction equation

HRID 2297065 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-cabonyl)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 vacuo. The crude product was purified by chromatography (1:1 EtOAc/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 vacuo
  7. customThe crude product was purified by chromatography (1:1 EtOAc/hexane)

Sources & evidence

ORD record
ord-fff6c2aa4d0b452caba3686c4b166cf5
Source dataset
uspto-grants-2002_12
Patent number
US06489353B2

Reaction notes

Loading…