2-[3-(2-Fluorobenzyl)-1H-pyrazolo[4,3-b]pyridin-1-yl]-5-nitropyrimidine-4,6-diamine → HCID 24794429、化合物
反応式
[F:1][C:2]1[CH:28]=[CH:27][CH:26]=[CH:25][C:3]=1[CH2:4][C:5]1[C:9]2=[N:10][CH:11]=[CH:12][CH:13]=[C:8]2[N:7]([C:14]2[N:19]=[C:18]([NH2:20])[C:17]([N+:21]([O-])=O)=[C:16]([NH2:24])[N:15]=2)[N:6]=1>N1C=CC=CC=1.[Pd]>[F:1][C:2]1[CH:28]=[CH:27][CH:26]=[CH:25][C:3]=1[CH2:4][C:5]1[C:9]2=[N:10][CH:11]=[CH:12][CH:13]=[C:8]2[N:7]([C:14]2[N:19]=[C:18]([NH2:20])[C:17]([NH2:21])=[C:16]([NH2:24])[N:15]=2)[N:6]=1参加物
4
反応条件
- 温度
- 50 °C
実験手順
690 mg (1.42 mmol) of 2-[3-(2-fluorobenzyl)-1H-pyrazolo[4,3-b]pyridin-1-yl]-5-nitropyrimidine-4,6-diamine from example 15A are dissolved in 120 ml of pyridine. 270 mg of 10% palladium on activated carbon are added, and hydrogenation is carried out under a hydrogen pressure of 3.5 bar for 15 h. The catalyst is then filtered off and washed with ethanol. The residue after concentration to dryness is stirred with ethanol at 50° C. and filtered off with suction. 378 mg (76% of theory) of the desired product are obtained. A further 92 mg (18% of theory) of the target compound can be obtained from the filtrate by purifying by preparative HPLC.
後処理
- customfor 15 h
- filtrationThe catalyst is then filtered off
- washwashed with ethanol
- concentrationThe residue after concentration to dryness
- filtrationfiltered off with suction
出典と根拠
- ORDレコード
- ord-5a0310e471ef47098f6ad1a28482e1bf
- 出典データセット
- uspto-grants-2012_11
- 特許番号
- US08309551B2
反応ノート
読み込み中…