4-Nitrobenzoyl chloride → HCID 68762968、化合物
反応式
[Cl:1][C:2]1[CH:3]=[C:4]2[C:10]3([CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]3)[CH2:9][N:8]([C:23]3[C:24]4[C@H:31]([CH3:32])[CH2:30][CH:29]([OH:33])[C:25]=4[N:26]=[CH:27][N:28]=3)[C:5]2=[CH:6][CH:7]=1.[N+:34]([C:37]1[CH:45]=[CH:44][C:40]([C:41](Cl)=[O:42])=[CH:39][CH:38]=1)([O-:36])=[O:35]>C(Cl)Cl.C([O-])(O)=O.[Na+]>[Cl:1][C:2]1[CH:3]=[C:4]2[C:10]3([CH2:11][CH2:12][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:14][CH2:15]3)[CH2:9][N:8]([C:23]3[C:24]4[C@H:31]([CH3:32])[CH2:30][C@@H:29]([O:33][C:41](=[O:42])[C:40]5[CH:39]=[CH:38][C:37]([N+:34]([O-:36])=[O:35])=[CH:45][CH:44]=5)[C:25]=4[N:26]=[CH:27][N:28]=3)[C:5]2=[CH:6][CH:7]=1参加物
反応条件
- 温度
- 0 °C
実験手順
A solution of tert-butyl 5-chloro-1-((5R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4′-piperidine]-1′-carboxylate (0.065 g, 0.14 mmol) and TEA (0.038 ml, 0.28 mmol) in DCM was cooled to about 0° C. To the mixture was added 4-nitrobenzoyl chloride (0.031 g, 0.17 mmol). The reaction was stirred at about 0° C. for about 5 minutes, then warmed to about room temperature and stirred for 1.5 hours. The reaction was diluted with DCM and saturated NaHCO3. The combined extracts were washed with brine, dried over MgSO4, filtered and concentrated. The crude residue was purified by column chromatography (30-50% EtOAc/Hexane) to yield tert-butyl 5-chloro-1-((5R,7R)-5-methyl-7-(4-nitrobenzoyloxy)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4′-piperidine]-1′-carboxylate (0.020 g, 23%). LCMS (APCI+) m/z 620, 622 [M+H]+; Rt=4.65 min, and to yield tert-butyl 5-chloro-1-((5R,7S)-5-methyl-7-(4-nitrobenzoyloxy)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4′-piperidine]-1′-carboxylate (0.029 g, 29%). LCMS (APCI+) m/z 620, 622 [M+H]+; Rt=4.66 min.
後処理
- temperaturewarmed to about room temperature
- stirringstirred for 1.5 hours
- washThe combined extracts were washed with brine
- dry with materialdried over MgSO4
- filtrationfiltered
- concentrationconcentrated
- customThe crude residue was purified by column chromatography (30-50% EtOAc/Hexane)
出典と根拠
- ORDレコード
- ord-1aa4a1a53b0f4fcd925ffe58623b59b0
- 出典データセット
- uspto-grants-2012_12
- 特許番号
- US08324221B2
反応ノート
読み込み中…