Succinic anhydride → Salvinorin A

HRID 1509365

反応式

HRID 1509365 の反応式
[CH3:1][C@:2]12[C@H:17]([C:18]([O:20][CH3:21])=[O:19])[CH2:16][C@H:15]([OH:22])[C:13](=[O:14])[C@@H:12]1[C@:11]1([CH3:23])[C@H:5]([C:6]([O:8][C@H:9]([C:24]3[CH:25]=[CH:26][O:27][CH:28]=3)[CH2:10]1)=[O:7])[CH2:4][CH2:3]2.C1(=O)O[C:32](=[O:33])[CH2:31]C1.C1CCN2C(=NCCC2)CC1>ClCCl>[CH3:31][C:32]([O:22][C@@H:15]1[C:13](=[O:14])[C@H:12]2[C@@:2]([CH3:1])([CH2:3][CH2:4][C@@H:5]3[C@:11]2([CH3:23])[CH2:10][C@@H:9]([C:24]2[CH:25]=[CH:26][O:27][CH:28]=2)[O:8][C:6]3=[O:7])[C@H:17]([C:18]([O:20][CH3:21])=[O:19])[CH2:16]1)=[O:33]

参加物

5

反応条件

温度
0 °C

実験手順

To Salvinorin B (190 mg, 0.487 mmol) and succinic anhydride (112 mg, 2.5 eq) suspended in dichloromethane (5 ml) at 0° C. was added DBU (218 pl, 3 eq) dropwise. The mixture was stirred at 0° C. for 15 mins, washed with 3% citric acid (5 ml), saturated NaHCO3 solution (5 ml) and brine (5 ml). The mixture was dried over sodium sulfate, filtered and evaporated to dryness. The crude residue was purified by column chromatography (silica gel: CH2Cl2 to 5% MeOH in CH2Cl2) to give salvinorin hemisuccinate (130 mg, 54%).

後処理

  1. washwashed with 3% citric acid (5 ml), saturated NaHCO3 solution (5 ml) and brine (5 ml)
  2. dry with materialThe mixture was dried over sodium sulfate
  3. filtrationfiltered
  4. customevaporated to dryness
  5. customThe crude residue was purified by column chromatography (silica gel: CH2Cl2 to 5% MeOH in CH2Cl2)

出典と根拠

ORDレコード
ord-82dd4338f69d45bfb15f0f0965eaa3cd
出典データセット
uspto-grants-2015_12
特許番号
US09222949B2

関連ノート

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