Water → 1-(benzyloxy-carbonyl)-3-(6-O-ethoxycarbonyl-beta-D-glucopyranosyloxy)-4-((4-isopropoxyphenyl)methyl]-5-methylpyrazole

HRID 6657

反応式

HRID 6657 の反応式
[CH2:1]([O:8][C:9]([N:11]1[C:15]([CH3:16])=[C:14]([CH2:17][C:18]2[CH:23]=[CH:22][C:21]([O:24][CH:25]([CH3:27])[CH3:26])=[CH:20][CH:19]=2)[C:13]([O:28][C@@H:29]2[O:37][C@H:36]([CH2:38][OH:39])[C@@H:34]([OH:35])[C@H:32]([OH:33])[C@H:30]2[OH:31])=[N:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[C:41]([O:43][CH2:44][CH3:45])=[O:42].O.O.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>CC1C=C(C)C=C(C)N=1>[CH2:1]([O:8][C:9]([N:11]1[C:15]([CH3:16])=[C:14]([CH2:17][C:18]2[CH:19]=[CH:20][C:21]([O:24][CH:25]([CH3:27])[CH3:26])=[CH:22][CH:23]=2)[C:13]([O:28][C@@H:29]2[O:37][C@H:36]([CH2:38][O:39][C:41]([O:43][CH2:44][CH3:45])=[O:42])[C@@H:34]([OH:35])[C@H:32]([OH:33])[C@H:30]2[OH:31])=[N:12]1)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

6

反応物 4

HCID 962WaterHCID 10928Ethyl chloroformateHCID 222302-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1)HCID 673349881-(benzyloxycarbonyl)-3-(beta-D-gluco-pyranosyloxy)-4-[(4-isopropoxyphenyl)methyl]-5-methyl-pyrazole

生成物 1

HCID 235431641-(benzyloxy-carbonyl)-3-(6-O-ethoxycarbonyl-beta-D-glucopyranosyloxy)-4-((4-isopropoxyphenyl)methyl]-5-methylpyrazole

試薬・触媒・溶媒 1

HCID 79532,4,6-Trimethylpyridine溶媒

実験手順

To a solution of 1-(benzyloxycarbonyl)-3-(β-D-glucopyranosyloxy)-4-[(4-isopropoxyphenyl)methyl]-5-methylpyrazole (0.20 g) in 2,4,6-trimethylpyridine (4 mL) was added ethyl chloroformate (0.092 mL), and the mixture was stirred at room temperature for 1 day. To the reaction mixture were added water and citric acid monohydrate, and the resulting mixture was extracted with ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue was purified by column chromatography on silica gel (eluent: dichloromethane/methanol=10/1) to give 1-(benzyloxycarbonyl)-3-(6-O-ethoxycarbonyl-β-D-glucopyranosyloxy)-4-[(4-isopropoxyphenyl)methyl]-5-methylpyrazole (0.17 g).

後処理

  1. extractionthe resulting mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was removed under reduced pressure
  5. customThe residue was purified by column chromatography on silica gel (eluent: dichloromethane/methanol=10/1)

出典と根拠

ORDレコード
ord-98f3503a6a674d06900034c5fded6da5
出典データセット
uspto-grants-2006_08
特許番号
US07084123B2

関連ノート

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