反应详情

A solution of N—((S)-1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)-3-(1-hydroxyethyl)-1H-pyrazole-5-carboxamide of Example 56 (90 mg, 0.225 mmol) in 2 ml of DCM was added to a suspension of N,N-dimethylglycine (47 mg, 0.45 mmol), DIPEA (0.13 ml; 0.75 mmol), anhydrous HOBt (61 mg, 0.45 mmol) and EDCI (87 mg, 0.45 mmol) in 2 ml of DCM. The reaction mixture was stirred at RT over three nights. The mixture was diluted with DCM and washed with water. Organic phase was dried over Na2SO4, filtered and evaporated. Crude product was purified twice by CombiFlash (1st column: silica, eluent: 0-10% MeOH in DCM; 2nd column: alumina, eluent: 0-10% MeOH in DCM) to obtain 26 mg (36%) of the title compound. 1H-NMR (400 MHz; CDCl3): δ 1.22 (d, 3H), 1.66 (d, 3H), 2.35 (d, 6H), 3.20 (d, 2H), 4.25-4.33 (m, 1H), 4.37-4.45 (m, 1H), 4.52-4.64 (m, 1H), 6.00 (q, 1H), 6.60 (m, 1H), 6.80 (s, 1H), 7.50 (dd, 1H), 7.67 (m, 1H), 7.74-7.87 (m, 2H), 8.09 (d, 1H), 11.6 (bs, 1H).

1. washwashed with water
2. dry with materialOrganic phase was dried over Na2SO4
3. filtrationfiltered
4. customevaporated
5. customCrude product was purified twice by CombiFlash (1st column: silica, eluent: 0-10% MeOH in DCM; 2nd column: alumina, eluent: 0-10% MeOH in DCM)