Water → HCID 57867355, compound

HRID 1516260Notes

Reaction equation

HRID 1516260 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.[F:33][C:34]1[CH:41]=[CH:40][C:37]([CH2:38][NH2:39])=[CH:36][CH:35]=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:39][CH2:38][C:37]2[CH:40]=[CH:41][C:34]([F:33])=[CH:35][CH:36]=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 673264-FluorobenzylamineHCID 86634317HCID 86634317, compound

Product 1

HCID 57867355HCID 57867355, compoundYield 56%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a stirred solution of ((2R,4R)-3-acetoxy-5-(6-chloro-9H-purin-9-yl)-4-fluoro-3,4-dimethyl-tetrahydrofuran-2-yl)methyl benzoate (about 0.2 g, 0.43 mmol) in ethanol (about 5 ml) was added 4-fluorobenzylamine (about 0.39 ml, 3.46 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 compound (0.13 g) as a colorless gummy mass. Yield: 56%; 1H NMR (300 MHz, CDCl3): δ 8.74 (s, 1H), 8.38 (d, 1H, J=3.9 Hz), 8.06-8.03 (m, 2H), 7.58-7.56 (m, 1H), 7.47-7.42 (m, 2H), 6.46 (d, 1H, J=20.1 Hz), 4.94-4.72 (m, 2H), 4.66-4.59 (m, 1H), 2.11 (s, 3H), 1.79 (s, 3H), 1.41 (m, 3H); Mass: [M+Na]+: 485 (40%), [M+1]+ 463 (45%).

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

Sources & evidence

ORD record
ord-06d8b471e8af4692ac85fe7aad6b7fc6
Source dataset
uspto-grants-2012_07
Patent number
US08227431B2

Reaction notes

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