Triacetoxyperiodinane → n-[1-(Benzooxazole-2-carbonyl)-propyl]-2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyramide

HRID 1830191Notes

Reaction equation

HRID 1830191 reaction equation
[O:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[CH:10]([OH:34])[CH:11]([NH:14][C:15](=[O:33])[CH:16]([CH2:26][CH:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1)[CH2:17][C:18]([N:20]1[CH2:25][CH2:24][O:23][CH2:22][CH2:21]1)=[O:19])[CH2:12][CH3:13].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+]>>[O:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([CH:11]([NH:14][C:15](=[O:33])[CH:16]([CH2:26][CH:27]1[CH2:28][CH2:29][CH2:30][CH2:31][CH2:32]1)[CH2:17][C:18]([N:20]1[CH2:25][CH2:24][O:23][CH2:22][CH2:21]1)=[O:19])[CH2:12][CH3:13])=[O:34]

Participants

4

Reactant 3

HCID 159087TriacetoxyperiodinaneHCID 22054056N-[1-(benzooxazol-2-yl-hydroxy-methyl)-propyl]-2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyramideHCID 22607107sodium thiosulfate NaHCO3

Product 1

HCID 22054058n-[1-(Benzooxazole-2-carbonyl)-propyl]-2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyramide

Procedure

This amide was treated with Dess-Martin periodinane (237.6 mg, 0.48 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 76 mg of N-[1-(benzooxazole-2-carbonyl)-propyl]-2-cyclohexylmethyl-4-morpholin-4-yl-4-oxo-butyramide; H1 NMR(DMSO-d): 8.49(1H, d, J=5.2 Hz, NH), 7.96(11H, d, J=7.6Hz), 7.86(111, d, J=8.4), 7.6(1H, m), 7.5(1H, m), 5.14–5.04(1H, m), 3.6–3.25(8H, m), 2.9–2.75(1H, m), 2.5–2.4(1H, m), 2.25–2.15(1H, m), 2–1.8(1H, m), 1.8–1.7(2H, m), 1.7–1.6(1H, m), 1.6–1.4(5H, m), 1.35–1.2(1H, m), 1.21–1(4H, m), 0.96(3H, t); MS: 468.6(M−1), 470.5(M+1), 492.3(M+Na).

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-8bc8f005854d4f0b985ef000e169ca9a
Source dataset
uspto-grants-2006_06
Patent number
US07064123B1

Reaction notes

Loading…