Lithium Hydroxide → 2-{[2-(4-Fluorophenyl)ethyl]thio}-3-[4-(2-{4-[(methylsulfonyl)oxy]-phenoxy}ethyl)phenyl]propanoic acid

HRID 1178569ノート

反応式

HRID 1178569 の反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][S:10][CH:11]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([CH2:23][CH2:24][O:25][C:26]3[CH:31]=[CH:30][C:29]([O:32][S:33]([CH3:36])(=[O:35])=[O:34])=[CH:28][CH:27]=3)=[CH:19][CH:18]=2)[C:12]([O:14]C)=[O:13])=[CH:4][CH:3]=1.[OH-].[Li+]>C1COCC1.O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][S:10][CH:11]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([CH2:23][CH2:24][O:25][C:26]3[CH:27]=[CH:28][C:29]([O:32][S:33]([CH3:36])(=[O:35])=[O:34])=[CH:30][CH:31]=3)=[CH:19][CH:18]=2)[C:12]([OH:14])=[O:13])=[CH:4][CH:3]=1

参加物

5

反応物 2

HCID 3939Lithium HydroxideHCID 86600806HCID 86600806、化合物

生成物 1

HCID 103115412-{[2-(4-Fluorophenyl)ethyl]thio}-3-[4-(2-{4-[(methylsulfonyl)oxy]-phenoxy}ethyl)phenyl]propanoic acid収率 33.1%

試薬・触媒・溶媒 2

HCID 962Water溶媒2 回HCID 8028Tetrahydrofuran溶媒

実験手順

Methyl 2-{[2-(4-fluorophenyl)ethyl]thio}-3-[4-(2-{4-[(methylsulfonyl)oxy]-phenoxy}ethyl)phenyl]propanoate (77 mg, 0.14 mmol) was dissolved in 2.5 ml of a 4:1 mixture of THF and water and cooled on an ice-bath. Lithium hydroxide (6.9 mg, 0.29 mmol) was added. Water was added after 2 days of stirring at room temperature. The THF was evaporated under reduced pressure. The aqueous phase was acidified with 1M HCl and extracted with EtOAc three times. The organic phases were pooled, washed (water, brine), dried (MgSO4) and evaporated. The crude product was purified using preparative HPLC (eluent: CH3CN/5% CH3CN-waterphase containing 0.1M NH4Oac). 24 mg of the desired product (yield 30%) was obtained as an oil.

後処理

  1. temperaturecooled on an ice-bath
  2. customThe THF was evaporated under reduced pressure
  3. extractionextracted with EtOAc three times
  4. washwashed (water, brine)
  5. dry with materialdried (MgSO4)
  6. customevaporated
  7. customThe crude product was purified
  8. additionHPLC (eluent: CH3CN/5% CH3CN-waterphase containing 0.1M NH4Oac)

出典と根拠

ORDレコード
ord-8d6bc0a54b66457da1fd6c1597e5dcba
出典データセット
uspto-grants-2007_10
特許番号
US07276539B2

反応ノート

読み込み中…