Lithium Hydroxide → (R)-4-(4-((tert-Butyldimethylsilyloxy)(4'-chlorobiphenyl-2-yl)methyl)piperidin-1-yl)benzoic acid

HRID 1476266ノート

反応式

HRID 1476266 の反応式
[OH-].[Li+].[Si:3]([O:10][C@@H:11]([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[C:35]1[CH:40]=[CH:39][C:38]([Cl:41])=[CH:37][CH:36]=1)[CH:12]1[CH2:17][CH2:16][N:15]([C:18]2[CH:28]=[CH:27][C:21]([C:22]([O:24]CC)=[O:23])=[CH:20][CH:19]=2)[CH2:14][CH2:13]1)([C:6]([CH3:9])([CH3:8])[CH3:7])([CH3:5])[CH3:4]>C1COCC1.CO.O>[Si:3]([O:10][C@@H:11]([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[C:35]1[CH:40]=[CH:39][C:38]([Cl:41])=[CH:37][CH:36]=1)[CH:12]1[CH2:13][CH2:14][N:15]([C:18]2[CH:28]=[CH:27][C:21]([C:22]([OH:24])=[O:23])=[CH:20][CH:19]=2)[CH2:16][CH2:17]1)([C:6]([CH3:9])([CH3:8])[CH3:7])([CH3:5])[CH3:4]

参加物

6

反応物 2

HCID 3939Lithium HydroxideHCID 58080191(R)-Ethyl 4-(4-((tert-butyldimethylsilyloxy)(4'-chlorobiphenyl-2-yl)methyl)piperidin-1-yl)benzoate2 回

生成物 1

HCID 58080201(R)-4-(4-((tert-Butyldimethylsilyloxy)(4'-chlorobiphenyl-2-yl)methyl)piperidin-1-yl)benzoic acid収率 89.1%

試薬・触媒・溶媒 3

HCID 887Methanol溶媒HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

Lithium hydroxide (1.42 g, 59.29 mmol) was added to a mixture of (R)-ethyl 4-(4-((tert-butyldimethylsilyloxy)(4′-chlorobiphenyl-2-yl)methyl)piperidin-1-yl)benzoate (INTERMEDIATE 12, 3.83 g, 6.78 mmol) in THF (27 ml), MeOH (9 ml) and water (1 ml). The resulting mixture was stirred at room temperature overnight and then the volatiles were removed under reduced pressure. The concentrate was purified by column chromatography (ISCO, 80 g silica column, eluting with 0→80% EtOAc/hexanes) to give the title product (3.24 g, yield: 89%).

後処理

  1. customthe volatiles were removed under reduced pressure
  2. customThe concentrate was purified by column chromatography (ISCO, 80 g silica column, eluting with 0→80% EtOAc/hexanes)

出典と根拠

ORDレコード
ord-35a46f3894ad44b1be4590b29f5c2406
出典データセット
uspto-grants-2015_04
特許番号
US09018381B2

反応ノート

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