Sodium borohydride → 2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl-2,3-dihydro-3-hydroxy-1H-isoindol-1-one

HRID 233217

反応式

HRID 233217 の反応式
[F:1][C:2]1[CH:29]=[CH:28][C:5]2[C:6]([CH:9]3[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][N:17]4[C:21](=[O:22])[C:20]5=[CH:23][CH:24]=[CH:25][CH:26]=[C:19]5[C:18]4=[O:27])[CH2:11][CH2:10]3)=[N:7][O:8][C:4]=2[CH:3]=1.[BH4-].[Na+]>CO.C(Cl)Cl>[F:1][C:2]1[CH:29]=[CH:28][C:5]2[C:6]([CH:9]3[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][N:17]4[CH:21]([OH:22])[C:20]5[C:19](=[CH:26][CH:25]=[CH:24][CH:23]=5)[C:18]4=[O:27])[CH2:11][CH2:10]3)=[N:7][O:8][C:4]=2[CH:3]=1

参加物

5

反応物 2

HCID 4311764Sodium borohydrideHCID 98653575-HT6/7 antagonist 1

生成物 1

HCID 184672142-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl-2,3-dihydro-3-hydroxy-1H-isoindol-1-one収率 90%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 6344Dichloromethane溶媒

実験手順

To a suspension of N-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]phthalimide (7.8 g, 19.8 mmol) in methanol (250 ml) and DCM (30 ml) was added NaBH4 (1.7 g, 45.5 mmol) at room temperature under nitrogen. After stirring for 0.5 hours the homogeneous reaction mixture was concentrated. The remaining solid was purified on a flash chromatography column (SiO2, 1:1 EtOAc/DCM, increased to 10% MeOH) to give 7.0 g (90%) of the desired product as a solid which was recrystallized from EtOAc, m.p.=172°-17320 C.

後処理

  1. concentrationwas concentrated
  2. customThe remaining solid was purified on a flash chromatography column (SiO2, 1:1 EtOAc/DCM, increased to 10% MeOH)

出典と根拠

ORDレコード
ord-ae764e4cd66e41198c132e57e705317c
出典データセット
uspto-grants-1997_01
特許番号
US05591745

関連ノート

読み込み中…