Triethylamine → HCID 57526983, compound

Participants

Reaction Conditions

Reaction Steps

(5R)-3-[3,5-difluoro-4-(4-thiomorpholinyl)phenyl]-5-(hydroxymethyl)-oxazolidin-2-one (Intermediate 12) (15 g, 45.5 mmol) was dissolved in a mixture of triethylamine (9.6 ml, 68 mmol) and dichloromethane (200 ml). The resulting solution was cooled to 0° C. and methane sulfonyl chloride (4.6 ml, 59 mmol) was added. The reaction mixture was stirred at 0° C. for 2 hours then allowed to warm to room temperature. Water (200 ml) was added and then the organic layer separated, dried over magnesium sulfate, filtered and concentrated in vacuo. This intermediate was dissolved in dry DMF (120 ml). Sodium azide (11.8 g, 181 mmol) was added and the reaction mixture stirred at 70° C. overnight. It was diluted with dichloromethane (700 ml), washed with water (200 ml) and brine (200 ml) and dried over magnesium sulfate. Concentration in vacuo gave 16 g of the title compound.

Provenance & Evidence