5-(4-Chlorophenyl)-4-(pyridin-4-yl)-1-(2-trimethylsilylethoxy)methylpyrazole → HCID 178418738, compound

Participants

Reaction Steps

Following a procedure similar to that described in Example 2-2), but using 5-(4-chlorophenyl)-4-(pyridin-4-yl)-1-(2-trimethylsilylethoxy)methylpyrazole prepared as described in 1) instead of 3-bromo-5-(4-fluorophenyl)-4-(pyridin-4-yl)pyrazole, and using (S)-1,2,3,5,6,7,8,8a-octahydroindolizin-7-one instead of (±)-1,2,3,5,6,7,8,8a-octahydroindolizin-7-one, the resulting product was subjected to a dehydration reaction as described in Example 3 and then treated by column chromatography through silica gel (eluent, ethyl acetate:methanol:isopropylamine=10:1:1), to give the title compound (Rf=0.50, 357 mg) as a pale brown powder (yield 4%).

Provenance & Evidence