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Chemical Structure| 157666-05-2 Chemical Structure| 157666-05-2

Structure of 157666-05-2

Chemical Structure| 157666-05-2

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Product Details of [ 157666-05-2 ]

CAS No. :157666-05-2
Formula : C25H24O5
M.W : 404.46
SMILES Code : O[C@@]([C@@H]([C@H]1COC(C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4)O)(C)C(O1)=O
MDL No. :MFCD13194935

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Application In Synthesis of [ 157666-05-2 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 157666-05-2 ]

[ 157666-05-2 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 157666-05-2 ]
  • [ 492-30-8 ]
  • 2
  • [ 492-30-8 ]
  • [ 76-83-5 ]
  • [ 157666-05-2 ]
YieldReaction ConditionsOperation in experiment
With pyridine;Cooling with ice; 2-C-methyl-D-ribono-gamma-lactone 1 (1.62 g, 10.0 mmol) was suspended in pyridine (10 mL) followed by the addition of triphenylchloromethane (2.06 g, 11 mmol) under ice bath. After the reaction was completed, the solvent was removed under reduced pressure and the residue was purified by silica-gel column chromatography (PE/EtOAc = 50/1) to give the Trt-protecting intermediate. This intermediate (400 mg, 1 mmol) was dissolved in dichloromethane (4 mL). To the solution, benzoic anhydride (226 mg, 1 mmol), triethylamine (0.2 mL, 2 mmol) and 4-dimethylaminopyridine (20 mg) were successively added under ice bath. After stirring for 3h at room temperature, the solvent was removed under reduced pressure and the residue was purified by silica-gel column chromatography to afford 2j as a white solid.
 

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