Isopropylamine → HCID 70864655、化合物
反応式
[CH:1]([NH2:4])([CH3:3])[CH3:2].Cl[C:6]1[N:11]=[C:10]([C:12]2[C:13]([C:31]3[CH:36]=[CH:35][C:34]([F:37])=[CH:33][CH:32]=3)=[N:14][N:15]3[CH2:20][CH2:19][N:18]([C:21]([O:23][CH2:24][C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)=[O:22])[CH2:17][C:16]=23)[CH:9]=[CH:8][N:7]=1>>[F:37][C:34]1[CH:35]=[CH:36][C:31]([C:13]2[C:12]([C:10]3[CH:9]=[CH:8][N:7]=[C:6]([NH:4][CH:1]([CH3:3])[CH3:2])[N:11]=3)=[C:16]3[CH2:17][N:18]([C:21]([O:23][CH2:24][C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)=[O:22])[CH2:19][CH2:20][N:15]3[N:14]=2)=[CH:32][CH:33]=1参加物
3
実験手順
A solution of isopropylamine (2.0 mL) and phenylmethyl 3-(2-chloro-4-pyrimidinyl)-2-(4-fluorophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate (i.e. the product of Step C) (1.00 g, 2.05 mmol) was heated in a sealed tube at 80° C. in a microwave reactor for 8 h. The reaction mixture was concentrated under reduced pressure to remove the excess amine. The residue was diluted with dichloromethane (50 mL) and treated with silica gel (10.0 g). The silica gel suspension was concentrated to leave a mixture of silica gel and crude product, which was purified by silica gel chromatography using a gradient of ethyl acetate/hexanes (0:1 to 7:1) as eluant to give 0.5 g of the title compound as a white solid.
後処理
- concentrationThe reaction mixture was concentrated under reduced pressure
- customto remove the excess amine
- additionThe residue was diluted with dichloromethane (50 mL)
- additiontreated with silica gel (10.0 g)
- concentrationThe silica gel suspension was concentrated
- customto leave
- additiona mixture of silica gel and crude product, which
- customwas purified by silica gel chromatography
出典と根拠
- ORDレコード
- ord-d6f9b422c4f742d7b3ab2f08d85ed9ab
- 出典データセット
- uspto-grants-2012_10
- 特許番号
- US08288375B2
反応ノート
読み込み中…