Chloromethyl pivalate → HCID 69943559, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 1-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-3-[4-(1H-1,2,3-triazol-1-yl)phenyl]-2-imidazolidinone(0.5 g) and chloromethyl pivalate (3.1 g) was stirred for 2 hours at 100° C. After having been cooled, the mixture was diluted with diisopropyl ether (10 ml), and the resulting powder was collected by filtration. The powder was subjected to silica gel flush chromatography (eluent: ethyl acetate→acetone→acetone/ethanol=10/1→acetone/ethanol=5/1) to give 1-[(2R,3R)-2-(2,4-difluorophenyl)-2-hydroxy-3-[2-oxo-3-[4-(1H-1,2,3-triazol-1-yl)phenyl]-1-imidazolidinyl]butyl]-4-[(2,2-dimethylpropanoyloxy)methyl]-1H-1,2,4-triazolium chloride (Compound 1, 0.34 g) as a white powder.

Provenance & Evidence