反应详情

1-(5-phenyl-thieno[3,2-c]pyrazol-1-yl)-ethanone [Intermediate (44), LC/MS: 243.1 (M+H), RT=3.45 minutes; 1H NMR (300 Mhz, CDCl3): δ 7.84 (s, 1H), 7.78 (s, 1H), 7.64 (m, 2H), 7.43-7.31 (m, 3H), 2.75 (s, 3H)] is prepared using procedures similar to those described hereinabove for Intermediate (25) substituting 2-phenyl-5-methyl-thiophene for 5-methylthiophene-2-carboxylic acid in step 1.