(2R,3S)-2-(4-Fluorophenyl)-3-methyl-2-(1H-1,2,4-triazol-1-yl)methyloxirane → HCID 178462387, compound

Participants

Reaction Conditions

Reaction Steps

1 ml (0.59 mmol) of a 4.8 M methanolic solution of sodium methoxide was added to a solution of 2.33 g (10 mmol) of (2R,3S)-2-(4-fluorophenyl)-3-methyl-2-[(1H-1,2,4-triazol-1-yl)methyl]oxirane [prepared as described in Chem. Pharm. Bull., 43, 441-449 (1995)] and 2.38 g (10 mmol) of cis-5-(acetylthio)-2-phenyl-1,3-dioxane [prepared as descripted in Step 6(i) above] in 40 ml of ethanol. The resulting mixture was stirred at 80° C. for 5 hours. After cooling, the reaction mixture was partitioned between ethyl acetate and water. The organic layer was separated and washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The residue was purified by chromatography on a silica gel (50 g) column using a 2:1 mixture of ethyl acetate and hexane as the eluant to afford 3.1 g (yield 72%) of the title compound as a brown foamy solid.

Provenance & Evidence