Potassium Carbonate → (4'S,5'R)-6''-chloro-4'-(2-chloro-3-fluoropyridin-4-yl)-1'-[(1R,2S)-2-hydroxy-1,2-diphenylethyl]-4,4-dimethyl-2''-oxo-1'',2''-dihydrodispiro[cyclohexane-1,2'-pyrrolidine-3',3''-indole]-5'-carboxylic acid

HRID 470668ノート

反応式

HRID 470668 の反応式
[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C@@:6]3([C:19]4([CH2:24][CH2:23][C:22]([CH3:26])([CH3:25])[CH2:21][CH2:20]4)[N:18]4[C@@H:13]([C:14](=[O:39])[O:15][C@@H:16]([C:33]5[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=5)[C@H:17]4[C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[C@@H:12]3[C:40]3[CH:45]=[CH:44][N:43]=[C:42]([Cl:46])[C:41]=3[F:47])[C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1.C(=O)([O-])[O-:49].[K+].[K+].S([O-])([O-])(=O)=O.[Mg+2]>C(#N)C.O>[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]3([C@@H:12]([C:40]4[CH:45]=[CH:44][N:43]=[C:42]([Cl:46])[C:41]=4[F:47])[C@H:13]([C:14]([OH:49])=[O:39])[N:18]([C@H:17]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[C@@H:16]([OH:15])[C:33]4[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=4)[C:19]43[CH2:24][CH2:23][C:22]([CH3:26])([CH3:25])[CH2:21][CH2:20]4)[C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1

参加物

6

反応物 3

HCID 11430Potassium CarbonateHCID 24083Sulfuric acid magnesium salt (1:1)HCID 86672587(3'S,4'R,7'S,8'S,8a'R)-6''-chloro-8'-(2-chloro-3-fluoropyridin-4-yl)-4,4-dimethyl-3',4'-diphenyl-3',4',8',8a'-tetrahydro-1'H-dispiro[cyclohexane-1,6'-pyrrolo[2,1-c][1,4]oxazine-7',3''-indole]-1',2''(1''H)-dione

生成物 1

HCID 86672586(4'S,5'R)-6''-chloro-4'-(2-chloro-3-fluoropyridin-4-yl)-1'-[(1R,2S)-2-hydroxy-1,2-diphenylethyl]-4,4-dimethyl-2''-oxo-1'',2''-dihydrodispiro[cyclohexane-1,2'-pyrrolidine-3',3''-indole]-5'-carboxylic acid収率 100.4%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6342Acetonitrile溶媒

反応条件

温度
85 °C

実験手順

The compound (630 mg, 0.94 mmol) obtained in Step 1 of Example 16 was dissolved in acetonitrile (10 ml) and water (4 ml), potassium carbonate (130 mg, 0.94 mmol) was added and the resulting mixture was heated to reflux at 85° C. for 16 hours. After cooling, anhydrous magnesium sulfate (113 mg, 0.94 mmol) was added and the resulting mixture was stirred at room temperature for 15 minutes. After extraction with ethyl acetate, the organic layer was washed with brine and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure to give (4′S,5′R)-6″-chloro-4′-(2-chloro-3-fluoropyridin-4-yl)-1′-[(1R,2S)-2-hydroxy-1,2-diphenylethyl]-4,4-dimethyl-2″-oxo-1″,2″-dihydrodispiro[cyclohexane-1,2′-pyrrolidine-3′,3″-indole]-5′-carboxylic acid (650 mg, 100%) as a pale orange amorphous solid [MS (ESI) m/z: 688 (M+H)+.]. The carboxylic acid (650 mg, 0.94 mmol) obtained was dissolved in methanol (30 ml) and water (8 ml), cerium (IV) diammonium nitrate (1.55 g, 2.82 mmol) was added under ice cooling and the resulting mixture was stirred at the same temperature for 30 minutes. Potassium carbonate (780 mg, 5.64 mmol) was added under ice cooling and the resulting mixture was stirred at the same temperature for 1 hour. Insoluble matter was removed by filtration through celite, then the filtrate was concentrated under reduced pressure and water was added to the residue obtained, followed by extraction with ethyl acetate. The organic layer was washed with brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure and the residue obtained was purified by silica gel column chromatography [chloroform:methanol=20:1→4:1 (v/v)] to give 152 mg (33%) of the title compound as a colorless solid.

後処理

  1. temperaturethe resulting mixture was heated
  2. temperatureAfter cooling
  3. extractionAfter extraction with ethyl acetate
  4. washthe organic layer was washed with brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solvent was evaporated under reduced pressure

出典と根拠

ORDレコード
ord-5b05c517212d46bfae857b96e84944a2
出典データセット
uspto-grants-2014_01
特許番号
US08629133B2

反応ノート

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