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Triacetoxyperiodinane → n-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyramide

HRID 1830180
Notes
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Reaction equation

HRID 1830180 reaction equation
[OH:1][CH:2]([C:29]1[O:30][C:31]([CH2:34][O:35][CH3:36])=[N:32][N:33]=1)[CH:3]([NH:6][C:7](=[O:28])[CH:8]([CH2:17][S:18]([CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)(=[O:20])=[O:19])[CH2:9][C:10](=[O:16])[N:11]1[CH2:15][CH2:14][CH2:13][CH2:12]1)[CH2:4][CH3:5].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O.[O-]S([O-])(=S)=O.[Na+].[Na+].C([O-])(O)=O.[Na+]>>[CH3:36][O:35][CH2:34][C:31]1[O:30][C:29]([C:2]([CH:3]([NH:6][C:7](=[O:28])[CH:8]([CH2:17][S:18]([CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)(=[O:20])=[O:19])[CH2:9][C:10](=[O:16])[N:11]2[CH2:12][CH2:13][CH2:14][CH2:15]2)[CH2:4][CH3:5])=[O:1])=[N:33][N:32]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 3

HCID 159087TriacetoxyperiodinaneHCID 22054041N-{1-[Hydroxy-(5-methoxymethyl-[1,3,4]oxadiazol-2-yl)-methyl]-propyl}-4-oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyramideHCID 22607107sodium thiosulfate NaHCO3

Product 1

HCID 22054080n-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyramide

Procedure

This amide was treated with Dess-Martin periodinane (114 mg, 0.153 mmol) at room temperature. After stirring for 1 hour, 5 mls of saturated Na2S2O3—NaHCO3 were added. After a further 0.5 hours, the reaction mixture was extracted with ethyl acetate, washed with brine, dried with MgSO4 and concentrated. The residue was purified with silica gel column chromatography to yield 17 mg of N-[1-(5-Methoxymethyl-[1,3,4]oxadiazole-2-carbonyl)-propyl]-4-oxo-2-benzylsulfonylmethyl-4-pyrrolidin-1-yl-butyramide; H1 NMR(CDCl3): 8.2, 8(1H, d,d, NH, diastereomeric), 7.6–7.2(5H, m), 5.3–5.1(1H, m), 4.6(2H, s, OCH2), 4.3–4.1(3H, m), 3.8–3.2(9H, m), 3–2.4(2H, m), 2.2–1.4(6H, m), 0.95(3H, t); MS:519.6(M−1), 521.6(M+1).

Workup

  1. waitAfter a further 0.5 hours
  2. extractionthe reaction mixture was extracted with ethyl acetate
  3. washwashed with brine
  4. dry with materialdried with MgSO4
  5. concentrationconcentrated
  6. customThe residue was purified with silica gel column chromatography

Sources & evidence

ORD record
ord-424d61c9b9c24e658052481db2791c51
Source dataset
uspto-grants-2006_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07064123B1

Reaction notes

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