(1S)-[(2R)-(2,4-difluorophenyl)-2-oxiranyl]ethanol → (2R)-2-(2,4-difluorophenyl)-2-[(1R)-1-[1-(4-trifluoromethoxyphenyl)-1H-1,2,4-triazol-5-yloxy]ethyl]oxirane

Participants

Reaction Steps

In the same manner as in Reference Example 5, starting from 1.53 g of (1S)-1-[(2R)-2-(2,4-difluorophenyl)-2-oxiranyl] ethanol and 1.50 g of 2-(4-trifluoromethoxyphenyl)-3(2H,4H)-1,2,4-triazolone, 4-[(1R,2S)-2-(2,4-difluorophenyl)-2,3-epoxy-1-methylpropyl]-2-(4-trifluoromethoxyphenyl)-3(2H,4H)-1,2,4-triazolone (829 mg) and 778 mg of (2R)-2-(2,4-difluorophenyl)-2-[(1R)-1-[1-(4-trifluoromethoxyphenyl)-1H-1,2,4-triazol-5-yloxy]ethyl]oxirane were obtained.

Provenance & Evidence