2-Methyl-7-phenylpyrazolo[1,5-a]pyrimidin-5-amine → N-(2-methyl-7-phenylpyrazolo[1,5-a]pyrimidin-5-yl)-2-(pyridin-4-yl)cyclopropanecarboxamide
反応式
[N:1]1[CH:6]=[CH:5][C:4]([CH:7]2[CH2:9][CH:8]2[C:10](Cl)=[O:11])=[CH:3][CH:2]=1.[CH3:13][C:14]1[CH:29]=[C:17]2[N:18]=[C:19]([NH2:28])[CH:20]=[C:21]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[N:16]2[N:15]=1>N1C=CC=CC=1>[CH3:13][C:14]1[CH:29]=[C:17]2[N:18]=[C:19]([NH:28][C:10]([CH:8]3[CH2:9][CH:7]3[C:4]3[CH:5]=[CH:6][N:1]=[CH:2][CH:3]=3)=[O:11])[CH:20]=[C:21]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[N:16]2[N:15]=1参加物
実験手順
In a round-bottomed flask was 2-(pyridin-4-yl)cyclopropanecarbonyl chloride (7D, 190 mg, 1.05 mmol) added in Pyridine (2 mL) to give a yellow suspension. 2-methyl-7-phenylpyrazolo[1,5-a]pyrimidin-5-amine (10A, 213 mg, 0.951 mmol) was added portionwise at 0° C. The temperature was slowly raised to room temperature. The reaction was quenched with saturated sodium bicarbonate and partitioned between ethyl acetate and water. The separated organic layer was dried over Mg2SO4, filtered, and concentrated under reduced pressure (3×100 mL). The reaction mixture was filtered and purified by preparatory, 5-95% (10 mM NH4HCO3 (aq)/10 mM NH4HCO3 in 20/80 (v/v) H2O/MeCN). Received 9 mg (3%) of yellow solid. 1H NMR (DMSO-d6) δ: 11.32 (s, 1H), 8.46 (d, J=6.1 Hz, 2H), 7.94-8.06 (m, 2H), 7.88 (s, 1H), 7.53-7.67 (m, 3H), 7.15-7.26 (m, 2H), 6.33 (s, 1H), 2.37 (s, 3H), 1.50-1.66 (m, 2H). ESI-MS: m/z 370.0 (M+H)+.
後処理
- customIn a round-bottomed flask was
- customto give a yellow suspension
- customThe reaction was quenched with saturated sodium bicarbonate
- custompartitioned between ethyl acetate and water
- dry with materialThe separated organic layer was dried over Mg2SO4
- filtrationfiltered
- concentrationconcentrated under reduced pressure (3×100 mL)
- filtrationThe reaction mixture was filtered
- custompurified by preparatory, 5-95% (10 mM NH4HCO3 (aq)/10 mM NH4HCO3 in 20/80 (v/v) H2O/MeCN)
出典と根拠
- ORDレコード
- ord-e6a31b3f4b7d4d5c9eda3674d6373cf4
- 出典データセット
- uspto-grants-2014_12
- 特許番号
- US08921358B2
反応ノート
読み込み中…