Acetic Anhydride → HCID 69076131, compound

HRID 1761188Notes

Reaction equation

HRID 1761188 reaction equation
[F:1][C:2]1([F:33])[CH2:6][CH2:5][C@@H:4]([C@@:7]([OH:32])([C:24]2[CH:29]=[CH:28][C:27]([CH2:30][OH:31])=[CH:26][CH:25]=2)[C:8]([O:10][CH:11]2[CH2:16][CH2:15][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:13][CH2:12]2)=[O:9])[CH2:3]1.CN(C1C=CC=CN=1)C.[C:43](OC(=O)C)(=[O:45])[CH3:44]>C(Cl)(Cl)Cl.C(N(CC)CC)C.C(OCC)(=O)C>[F:33][C:2]1([F:1])[CH2:6][CH2:5][C@@H:4]([C@@:7]([OH:32])([C:24]2[CH:29]=[CH:28][C:27]([CH2:30][O:31][C:43](=[O:45])[CH3:44])=[CH:26][CH:25]=2)[C:8]([O:10][CH:11]2[CH2:12][CH2:13][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:15][CH2:16]2)=[O:9])[CH2:3]1

Participants

7

Reactant 3

HCID 7918Acetic AnhydrideHCID 218852-DimethylaminopyridineHCID 69075646HCID 69075646, compound

Product 1

HCID 69076131HCID 69076131, compound

Reagents, catalysts & solvents 3

HCID 6212ChloroformSolventHCID 8471TriethylamineSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 42 mg of t-butyl 4-((2R)-2-((1R)-3,3-difluorocyclopentyl)-2-hydroxy-2-(4-(hydroxymethyl)phenyl)-ethanoyloxy)tetrahydropyridine-1(2H)-carboxylate in 2 ml of chloroform, 0.015 ml of triethylamine, 0.01 ml of acetic anhydride and 2 mg of dimethylaminopyridine were added successively, followed by an hour's stirring at room temperature. The reaction liquid was diluted with ethyl acetate, washed successively with water and saturated brine, and dried over anhydrous sodium sulfate. Distilling the solvent off under reduced pressure, the resulting residue was purified on preparative thin layer chromatography (Kieselgel™ 60F254, Art 5744 (Merck), hexane/ethyl acetate=2/1) to provide 42 mg of the title compound as a colorless oily substance.

Workup

  1. waitfollowed by an hour
  2. customThe reaction liquid
  3. washwashed successively with water and saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. distillationDistilling the solvent off under reduced pressure
  6. customthe resulting residue was purified on preparative thin layer chromatography (Kieselgel™ 60F254, Art 5744 (Merck), hexane/ethyl acetate=2/1)

Sources & evidence

ORD record
ord-e526b2f6c5084c4681c922551d5dcb4f
Source dataset
uspto-grants-2005_01
Patent number
US06846835B2

Reaction notes

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