反应详情

The title compound was prepared as described in Example 68. To a solution of 1-acetyl-3-(4-fluorophenyl)-1H-indazole-5-carbonyl chloride (0.200 g, 0.632 mmol) in pyridine (4 mL) was added 2-methoxypropylamine (0.274 mL, 3.16 mmol). The solution was stirred for 3 h at room temperature. Water (40 mL) was added and the reaction mixture was extracted with ethyl acetate. The combined organic layers were washed with aqueous 1 N hydrochloric acid, dried over anhydrous sodium sulfate, filtered and evaporated. The residue was purified by preparative HPLC (10–90% acetonitrile/water). The pure fractions were basified with ammonium hydroxide, evaporated at reduced pressure, diluted with water and filtered to give the title compound (0.073 g, 35% yield): 1H NMR (DMSO-d6) δ 13.42 (br s, 1H), 8.60 (t, 1H), 8.53 (s, 1H), 8.07 (AB quartet, 2H), 7.92 (dd, 1H), 7.62 (d, 1H), 7.40 (t, 2H), 3.40 (t, 2H), 3.34 (m, 2H), 3.25 (s, 3H), 1.79 (m, 2H); ES-MS (m/z) 328 [M+1]+.

1. customThe title compound was prepared
2. extractionthe reaction mixture was extracted with ethyl acetate
3. washThe combined organic layers were washed with aqueous 1 N hydrochloric acid
4. dry with materialdried over anhydrous sodium sulfate
5. filtrationfiltered
6. customevaporated
7. customThe residue was purified by preparative HPLC (10–90% acetonitrile/water)
8. customevaporated at reduced pressure
9. additiondiluted with water
10. filtrationfiltered