2-Dimethylaminopyridine → 2',3'-Difluoro-4'-(4-pentyloxybutoxy)-biphenyl-4-carboxylic acid 4-[(R)-1-trifluoromethylheptyloxycarbonyl]-phenyl ester

HRID 6593

反応式

HRID 6593 の反応式
[CH2:1]([O:5][CH2:6][CH2:7][CH2:8][CH2:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([C:17]2[CH:22]=[CH:21][C:20]([C:23]([OH:25])=[O:24])=[CH:19][CH:18]=2)=[C:13]([F:26])[C:12]=1[F:27])[CH2:2][CH2:3][CH3:4].[F:28][C:29]([F:48])([F:47])[C@H:30]([O:37][C:38](=[O:46])[C:39]1[CH:44]=[CH:43][C:42](O)=[CH:41][CH:40]=1)[CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH3:36].[CH3:49]N(C1C=CC=CN=1)C>C1COCC1.C(N=C=NC(C)C)(C)C>[F:28][C:29]([F:48])([F:47])[C@H:30]([O:37][C:38]([C:39]1[CH:44]=[CH:43][C:42]([O:24][C:23]([C:20]2[CH:19]=[CH:18][C:17]([C:14]3[CH:15]=[CH:16][C:11]([O:10][CH2:9][CH2:8][CH2:7][CH2:6][O:5][CH2:1][CH2:2][CH2:3][CH2:4][CH3:49])=[C:12]([F:27])[C:13]=3[F:26])=[CH:22][CH:21]=2)=[O:25])=[CH:41][CH:40]=1)=[O:46])[CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH3:36]

参加物

6

反応物 3

HCID 218852-DimethylaminopyridineHCID 145492174-hydroxybenzoic acid (R)-1-trifluoromethyl-heptyl esterHCID 220162534'-(4-Butoxybutoxy)-2',3'-difluorobiphenyl-4-carboxylic acid

生成物 1

HCID 586796342',3'-Difluoro-4'-(4-pentyloxybutoxy)-biphenyl-4-carboxylic acid 4-[(R)-1-trifluoromethylheptyloxycarbonyl]-phenyl ester収率 65%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 12734Diisopropylcarbodiimide溶媒

実験手順

To a solution of 4′-(4-butoxybutoxy)-2′,3′-difluorobiphenyl-4-carboxylic acid (27) (1 equi.), (4-hydroxybenzoic acid (R)-1-trifluoromethyl-heptyl ester (7) (1 equi.), and DMAP (dimethylaminopyridine) (0.1 equi.) in THF (25 mL/mmole), DIC (diisopropyl carbodiimide) (1.2 equi.) was added at room temperature. The reaction mixture was stirred at that temperature for 24 h, quenched with water, extracted with ethyl acetate:hexane(1:1), washed with brine, dried over MgSO4, and concentrated in vacuo. Purification by chromatography on silica gel (5% EtOAc/hexanes) gave 2′,3′-difluoro-4′-(4-pentyloxybutoxy)-biphenyl-4-carboxylic acid 4-[(R)-1-trifluoromethylheptyl oxycarbonyl]-phenyl ester (28) as a white solid (65%).

後処理

  1. customquenched with water
  2. extractionextracted with ethyl acetate:hexane(1:1)
  3. washwashed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customPurification by chromatography on silica gel (5% EtOAc/hexanes)

出典と根拠

ORDレコード
ord-a26dd92f0c2a4f80bcbf1d5d19358e72
出典データセット
uspto-grants-2006_08
特許番号
US07083832B2

関連ノート

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