ethyl 3-(4-fluorophenyl)propanoate

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 1-[1-(4-cyanophenyl)-4-(4-fluorophenyl)-2-oxobutyl]-1,2,4-triazole is prepared according to the procedure described in Example 1 starting from 1-(4-cyanobenzyl)-1,2,4-triazole (1.7 g, 0.0092 mol), n-BuLi (0.0108 mol) and ethyl 3-(4-fluorophenyl)propionate (2.3 g, 0.0117 mol) prepared from 4-fluorocinnamic acid by esterification and hydrogenation. The product is purified by flash chromatography methylene chloride-methanol (95:5) as eluent. The product is purified by flash chromatography methylene chloride-methanol (95:5) as eluent

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 1-[1-(4-cyanophenyl)-4-(4-fluorophenyl)-2-oxobutyl]-1,2,4-triazole is prepared according to the procedure described in Example 1 starting from 1-(4-cyanobenzyl)-1,2,4-triazole (1.7 g, 0.0092 mol), n-BuLi (0.0108 mol) and ethyl 3-(4-fluorophenyl)propionate (2.3 g, 0.0117 mol) prepared from 4-fluorocinnamic acid by esterification and hydrogenation. The product is purified by flash chromatography methylene chloride-methanol (95:5) as eluent. The product is purified by flash chromatography methylene chloride-methanol (95:5) as eluent

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The product of Step b (20.0 g, 102 mmol) was dissolved in anhydrous THF (500 ml), and the mixture was cooled to 0° C. To this solution, 1M LAH in THF (100 ml) was added dropwise, then the mixture was allowed to come to room temperature and stirred for three days. The reaction was quenched by the careful sequential addition of water (3.8 ml), 15% NaOH (3.8 ml), and water (11.4 ml). The resulting slurry was stirred for 1 hour, the solids were removed by filtration and rinsed with EtOAc, and the combined filtrates were stripped to yield 15.4 g of a colorless oil. This material was used as-is in the next step. NMR (300 MHz, CDCl3) δ 7.20-7.05 (m, 2H); 6.97 (t, 2H, J=7 Hz); 3.69 (q, 2H, J=7 Hz); 2.70 (t, 2H, J=7 Hz); 1.88 (t of t, 2H, J=7, 7 Hz); 1.31 (t, 1H, J=7 Hz). to come to room temperature The reaction was quenched by the careful sequential addition of water (3.8 ml), 15% NaOH (3.8 ml), and water (11.4 ml) The resulting slurry was stirred for 1 hour the solids were removed by filtration rinsed with EtOAc