Water → Ergosterol, acetate

HRID 1957479ノート

反応式

HRID 1957479 の反応式
[CH3:1][C@@H:2]([C@@H:10]1[C@@:14]2([CH3:29])[CH2:15][CH2:16][C@@H:17]3[C@@:22]4([CH3:28])[CH2:23][CH2:24][C@H:25]([OH:27])[CH2:26][C:21]4=[CH:20][CH:19]=[C:18]3[C@@H:13]2[CH2:12][CH2:11]1)/[CH:3]=[CH:4]/[C@@H:5]([CH:7]([CH3:9])[CH3:8])[CH3:6].[C:30](OC(=O)C)(=[O:32])[CH3:31].O>N1C=CC=CC=1>[C:30]([O:27][C@H:25]1[CH2:24][CH2:23][C@@:22]2([CH3:28])[C:21](=[CH:20][CH:19]=[C:18]3[C@@H:17]2[CH2:16][CH2:15][C@@:14]2([CH3:29])[C@H:13]3[CH2:12][CH2:11][C@@H:10]2[C@H:2]([CH3:1])/[CH:3]=[CH:4]/[C@H:5]([CH3:6])[CH:7]([CH3:8])[CH3:9])[CH2:26]1)(=[O:32])[CH3:31]

参加物

5

反応物 3

HCID 962WaterHCID 7918Acetic AnhydrideHCID 444679Ergosterol

生成物 1

HCID 6436903Ergosterol, acetate収率 74%

試薬・触媒・溶媒 1

HCID 1049Pyridine溶媒

実験手順

To a solution of 50 gm (0.13 mol) of ergosterol (1) in 300 ml of anhydrous pyridine was added 33.3 ml (0.35 mol) of acetic anhydride. The mixture was stirred at room temperature overnight and then 600 ml of water was added. The precipitate was filtered and washed three times with 200 ml portions of acetonitrile and then air dried to yield 42.0 g (74%) of (2).

後処理

  1. filtrationThe precipitate was filtered
  2. washwashed three times with 200 ml portions of acetonitrile
  3. customair dried

出典と根拠

ORDレコード
ord-ed15255e5d73475f811310c9f5b9ee02
出典データセット
uspto-grants-1998_07
特許番号
US05786348

反応ノート

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