2-Thiopheneboronic acid → (R)-2-(2-chloro-5-(2-thienyl)pyrimidine-4-ylamino)butan-1-ol
反応式
[Cl:1][C:2]1[N:7]=[C:6]([NH:8][C@H:9]([CH2:12][CH3:13])[CH2:10][OH:11])[C:5](Br)=[CH:4][N:3]=1.[S:15]1[CH:19]=[CH:18][CH:17]=[C:16]1B(O)O>>[Cl:1][C:2]1[N:7]=[C:6]([NH:8][C@H:9]([CH2:12][CH3:13])[CH2:10][OH:11])[C:5]([C:16]2[S:15][CH:19]=[CH:18][CH:17]=2)=[CH:4][N:3]=1参加物
3
実験手順
In the reaction of (R)-2-(2-chloro-5-bromopyrimidine-4-ylamino)butan-1-ol (18.17 g, 64.8 mmol) with thiophen-2-boronic acid (e. g.: Aldrich, Acros, Apin) (9.12 g, 128.0 mmol) according to procedure 3, the desired product is obtained in 71% yield (13.1 g) after chromatographic purification (silica gel, ethyl acetate/hexane (20%-50% ethyl acetate)).
出典と根拠
- ORDレコード
- ord-ce19478673f84688b18c871ad877a48d
- 出典データセット
- uspto-grants-2010_11
- 特許番号
- US07825128B2
反応ノート
読み込み中…