Water → HCID 57867395, compound

HRID 1516261Notes

Reaction equation

HRID 1516261 reaction equation
[C:1]([O:9][CH2:10][C@@H:11]1[C@@:15]([O:17][C:18](=[O:20])[CH3:19])([CH3:16])[C@:14]([F:22])([CH3:21])[CH:13]([N:23]2[CH:31]=[N:30][C:29]3[C:24]2=[N:25][CH:26]=[N:27][C:28]=3Cl)[O:12]1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH:33]1([NH2:37])[CH2:36][CH2:35][CH2:34]1.O>C(O)C>[C:1]([O:9][CH2:10][C@@H:11]1[C@@:15]([O:17][C:18](=[O:20])[CH3:19])([CH3:16])[C@:14]([F:22])([CH3:21])[CH:13]([N:23]2[CH:31]=[N:30][C:29]3[C:24]2=[N:25][CH:26]=[N:27][C:28]=3[NH:37][CH:33]2[CH2:36][CH2:35][CH2:34]2)[O:12]1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 962WaterHCID 75645CyclobutylamineHCID 57867376HCID 57867376, compound

Product 1

HCID 57867395HCID 57867395, compoundYield 46.5%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a stirred solution of ((2R,3S,4R)-3-acetoxy-5-(6-chloro-9H-purin-9-yl)-4-fluoro-3,4-dimethyl-tetrahydrofuran-2-yl)methyl benzoate (about 0.4 g, 0.86 mmol) in ethanol (about 5 ml) was added cyclobutylamine (about 0.88 ml, 10.38 mmol) and refluxed for about 2 hours. Completion of the reaction monitored by thin-layer chromatography and water added to the reaction mixture. The aqueous layer was extracted with ethyl acetate and the combined organic layers were washed with brine and dried over sodium sulphate. Concentration under reduced pressure and purification by silica gel column chromatography using 40% ethyl acetate in hexane as eluent furnished title compounds Isomer A and B (0.20 g) as a colorless gummy mass. Yield: 46.5%.

Workup

  1. temperaturerefluxed for about 2 hours
  2. additionadded to the reaction mixture
  3. extractionThe aqueous layer was extracted with ethyl acetate
  4. washthe combined organic layers were washed with brine
  5. dry with materialdried over sodium sulphate
  6. concentrationConcentration
  7. customunder reduced pressure and purification by silica gel column chromatography
  8. customfurnished title compounds Isomer A and B (0.20 g) as a colorless gummy mass

Sources & evidence

ORD record
ord-3a35df0b99d64d8b89be1a3df40c9ce4
Source dataset
uspto-grants-2012_07
Patent number
US08227431B2

Reaction notes

Loading…