Hydrochloric Acid → 5-{3-Chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(4-methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-propyl]-phenoxy}-2-fluoro-benzoic acid

HRID 2386754ノート

反応式

HRID 2386754 の反応式
C([O:3][C:4](=[O:40])[C:5]1[CH:10]=[C:9]([O:11][C:12]2[CH:17]=[CH:16][C:15]([CH:18]([CH3:37])[C:19]([OH:36])([C:24]3[CH:25]=[CH:26][C:27]4[O:32][CH2:31][C:30](=[O:33])[N:29]([CH3:34])[C:28]=4[CH:35]=3)[C:20]([F:23])([F:22])[F:21])=[C:14]([Cl:38])[CH:13]=2)[CH:8]=[CH:7][C:6]=1[F:39])C.[Li+].[OH-].Cl>O1CCCC1.CO>[Cl:38][C:14]1[CH:13]=[C:12]([CH:17]=[CH:16][C:15]=1[CH:18]([CH3:37])[C:19]([OH:36])([C:24]1[CH:25]=[CH:26][C:27]2[O:32][CH2:31][C:30](=[O:33])[N:29]([CH3:34])[C:28]=2[CH:35]=1)[C:20]([F:22])([F:21])[F:23])[O:11][C:9]1[CH:8]=[CH:7][C:6]([F:39])=[C:5]([CH:10]=1)[C:4]([OH:40])=[O:3]

参加物

6

反応物 3

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 666973435-{3-Chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(4-methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-propyl]-phenoxy}-2-fluoro-benzoic acid ethyl ester

生成物 1

HCID 469091285-{3-Chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(4-methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-propyl]-phenoxy}-2-fluoro-benzoic acid収率 81.2%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

To a solution of 5-{3-chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(4-methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-propyl]-phenoxy}-2-fluoro-benzoic acid ethyl ester (23 mg, 0.04 mmol) in tetrahydrofuran (0.085 ml) and methanol (0.085 ml) was added a 1 M aqueous LiOH solution (0.08 ml, 0.08 mmol) at 0° C. The mixture was stirred at 0° C. for 30 min and at room temperature for 2.5 h. The mixture was cooled in an ice bath and acidified using 1 M aqueous HCl. The mixture was concentrated. To the residue, water was added, extracted twice with AcOEt, the organic phases were washed with water, dried (MgSO4) and concentrated to give the title compound (18 mg) as a white solid. MS (m/e, ISP neg. ion)=552.2 [M−H+].

後処理

  1. temperatureThe mixture was cooled in an ice bath
  2. concentrationThe mixture was concentrated
  3. additionTo the residue, water was added
  4. extractionextracted twice with AcOEt
  5. washthe organic phases were washed with water
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated

出典と根拠

ORDレコード
ord-43ed777e82114ecc9898c9453aa4c44a
出典データセット
uspto-grants-2012_09
特許番号
US08268820B2

反応ノート

読み込み中…