5-Bromofuran-2-carbonitrile → 5-(4,4-Dimethyl-2-oxo-1,4-dihydro-2H-benzo[d][1,3]oxazin-6-yl)-furan-2-carbonitrile

HRID 50730

反応式

HRID 50730 の反応式
Br[C:2]1[O:3][C:4]([C:7]#[N:8])=[CH:5][CH:6]=1.[CH3:9][C:10]1([CH3:24])[C:15]2[CH:16]=[C:17](B(O)O)[CH:18]=[CH:19][C:14]=2[NH:13][C:12](=[O:23])[O:11]1>>[CH3:9][C:10]1([CH3:24])[O:11][C:12](=[O:23])[NH:13][C:14]2[CH:19]=[CH:18][C:17]([C:2]3[O:3][C:4]([C:7]#[N:8])=[CH:5][CH:6]=3)=[CH:16][C:15]1=2

参加物

3

実験手順

The title compound was prepared according to the procedure B from 2-bromo-5-cyanofuran (1.0 g, 5.6 mmol) (J. Med. Chem. (1997), 40(23),3804-3819) and (1,4-dihydro-4,4-dimethyl-2-oxo-2H-3,1-benzoxazin-6-yl)boronic acid (1.8 g, 8.18 mmol) as a white solid (0.39 g, 1.45 mmol, 17%): mp. 257-260° C. 1H-NMR (DMSO-d6) δ 10.48 (s, 1H), 7.73-7.70 (m, 3H), 7.19 (d, 1H, J=3.8 Hz), 6.98 (d, 1H, J=8.9 Hz), 1.66 (s, 6H); MS ((+)−APCI) m/z=269 (M+H)+.

出典と根拠

ORDレコード
ord-370dba5124cf4574a0085feaf4cbee27
出典データセット
uspto-grants-2004_03
特許番号
US06713478B2

関連ノート

読み込み中…