Triethylamine → 2-[4-(2-hydroxyethyl)benzyl]-5-methoxyphenyl beta-D-glucopyranoside

HRID 1247757ノート

反応式

HRID 1247757 の反応式
[O:1]([C:13]1[CH:18]=[C:17]([O:19][CH3:20])[CH:16]=[CH:15][C:14]=1[CH2:21][C:22]1[CH:27]=[CH:26][C:25]([CH2:28][CH2:29][O:30]COC)=[CH:24][CH:23]=1)[C@@H:2]1[O:10][C@H:9]([CH2:11][OH:12])[C@@H:7]([OH:8])[C@H:5]([OH:6])[C@H:3]1[OH:4].O.C1(C)C=CC(S(O)(=O)=O)=CC=1.C(N(CC)CC)C>CO>[O:1]([C:13]1[CH:18]=[C:17]([O:19][CH3:20])[CH:16]=[CH:15][C:14]=1[CH2:21][C:22]1[CH:23]=[CH:24][C:25]([CH2:28][CH2:29][OH:30])=[CH:26][CH:27]=1)[C@@H:2]1[O:10][C@H:9]([CH2:11][OH:12])[C@@H:7]([OH:8])[C@H:5]([OH:6])[C@H:3]1[OH:4]

参加物

5

反応物 3

HCID 8471TriethylamineHCID 521998p-Toluenesulfonic acid monohydrateHCID 688708525-methoxy-2-(4-[2-(methoxymethyloxy)ethyl]benzyl)phenyl beta-D-glucopyranoside

生成物 1

HCID 688718222-[4-(2-hydroxyethyl)benzyl]-5-methoxyphenyl beta-D-glucopyranoside収率 47.9%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

反応条件

温度
50 °C

実験手順

To a solution of 5-methoxy-2-{4-[2-(methoxymethyl-oxy)ethyl]benzyl}phenyl β-D-glucopyranoside (0.053 g) in methanol (2.3 mL) was added p-toluenesulfonic acid monohydrate (0.032 g), and the mixture was stirred at 50° C. for 3 hours. The reaction mixture was cooled to ambient temperature, triethylamine (0.5 mL) was added to the reaction mixture, and the solvent was removed under reduced pressure. The residue was purified by preparative thin layer chromatography on silica gel (eluent: dichloromethane/methanol=6/1) to give 2-[4-(2-hydroxyethyl)benzyl]-5-methoxyphenyl β-D-glucopyranoside (0.023 g).

後処理

  1. temperatureThe reaction mixture was cooled to ambient temperature
  2. customthe solvent was removed under reduced pressure
  3. customThe residue was purified by preparative thin layer chromatography on silica gel (eluent: dichloromethane/methanol=6/1)

出典と根拠

ORDレコード
ord-8f598a0d273844468e07433455cb463b
出典データセット
uspto-grants-2006_10
特許番号
US07129381B2

反応ノート

読み込み中…