Methyl 5-amino-2,3-dihydrobenzofuran-2-carboxylate → (+)-N4-(3,4-difluorophenyl)-N2-(2,3-dihydro-2-methoxycarbonylbenzofuran-5-yl)-5-fluoro-2,4-pyrimidinediamine
反応式
Cl[C:2]1[N:7]=[C:6]([NH:8][C:9]2[CH:14]=[CH:13][C:12]([F:15])=[C:11]([F:16])[CH:10]=2)[C:5]([F:17])=[CH:4][N:3]=1.[NH2:18][C:19]1[CH:20]=[CH:21][C:22]2[O:26][CH:25]([C:27]([O:29][CH3:30])=[O:28])[CH2:24][C:23]=2[CH:31]=1>CO>[F:16][C:11]1[CH:10]=[C:9]([NH:8][C:6]2[C:5]([F:17])=[CH:4][N:3]=[C:2]([NH:18][C:19]3[CH:20]=[CH:21][C:22]4[O:26][CH:25]([C:27]([O:29][CH3:30])=[O:28])[CH2:24][C:23]=4[CH:31]=3)[N:7]=2)[CH:14]=[CH:13][C:12]=1[F:15]参加物
反応条件
- 温度
- 80 °C
実験手順
A mixture of equivalent amount of 2-chloro-N4-(3,4-difluorophenyl)-5-fluoro-4-pyrimidineamine and (±)-5-amino-2,3-dihydro-2-methoxycarbonylbenzofuran in MeOH was shaken in a sealed tube at 80° C. for 48 h, cooled to room temperature and diluted with a mixture of n-hexanes:EtOAc (1:1; v/v). The resulting solid formed was filtered, washed with a mixture of EtOAc:n-hexanes (1:1; v/v), dried and analyzed to give (±)-N4-(3,4-difluorophenyl)-N2-(2,3-dihydro-2-methoxycarbonylbenzofuran-5-yl)-5-fluoro-2,4-pyrimidinediamine. 1H NMR (DMSO-d6): δ 10.21 (bs, 1H), 9.80 (bs, 1H), 8.20 (d, 1H, J=4.8 Hz), 7.94 (bs, 1H), 7.43 (m, 3H0, 7.15 (bd, 1H, J=8.4 Hz), 6.81 (d, 1H, J=8.1 Hz), 5.35 (dd, 1H, J=6.0 and 6.3 Hz), 3.69 (s, 3H), 3.52 (dd, 1H, J=10.5), 3.22 (dd, 1H, J=9.0 and 6.0 Hz); LCMS: purity: 99%; MS (m/e): 417 (MH+).
後処理
- temperaturecooled to room temperature
- customThe resulting solid formed
- filtrationwas filtered
- washwashed with a mixture of EtOAc:n-hexanes (1:1; v/v)
- customdried
出典と根拠
- ORDレコード
- ord-3cd106cef2564571aeb2bf627337212b
- 出典データセット
- uspto-grants-2014_09
- 特許番号
- US08835430B2
反応ノート
読み込み中…