Pyridine → HCID 86718207, compound

Participants

Reaction Conditions

Reaction Steps

655 mg of 1,1,1-triacetoxy-1,1-dihydro-1,2-benziodoxol-3(1H)-one (Dess-Martin periodinane; 97%, Aldrich; 1.5 mmol) were initially charged in 10 ml of anhydrous dichloromethane and cooled to about −30° C. 83 μl (1.03 mmol) of pyridine and 430 mg 8-[(2,6-difluorobenzyl)oxy]-N-[(2R)-1-hydroxyhexan-2-yl]-2-methylimidazo[1,2-a]pyridine-3-carboxamide (1.03 mmol) in 20 ml of dichloromethane were added successively to this suspension. The reaction solution was warmed to room temperature and stirred for a further 4 h. With ice cooling, 1N aqueous sodium hydroxide solution was then added, and the mixture was extracted three times with ethyl acetate. The combined organic phases were washed with saturated aqueous sodium chloride solution, dried over magnesium sulphate, filtered off and concentrated. The residue obtained was used without further purification for subsequent reactions.

Provenance & Evidence