Tetrabutylammonium Fluoride → 1alpha,3beta-dihydroxy-20(S)-{(E)-(4-ethyl-4-hydroxy-2-hexenyloxy)}pregna-5,7,16-triene

HRID 635047ノート

反応式

HRID 635047 の反応式
[Si]([O:8][C@@H:9]1[C@@:44]2([CH3:45])[C:13](=[CH:14][CH:15]=[C:16]3[C@@H:43]2[CH2:42][CH2:41][C@@:40]2([CH3:46])[C@H:17]3[CH2:18][CH:19]=[C:20]2[C@@H:21]([O:23][CH2:24]/[CH:25]=[CH:26]/[C:27]([CH2:38][CH3:39])([O:30][Si](CC)(CC)CC)[CH2:28][CH3:29])[CH3:22])[CH2:12][C@@H:11]([O:47][Si](C(C)(C)C)(C)C)[CH2:10]1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1>[OH:8][C@@H:9]1[C@@:44]2([CH3:45])[C:13](=[CH:14][CH:15]=[C:16]3[C@@H:43]2[CH2:42][CH2:41][C@@:40]2([CH3:46])[C@H:17]3[CH2:18][CH:19]=[C:20]2[C@@H:21]([O:23][CH2:24]/[CH:25]=[CH:26]/[C:27]([CH2:38][CH3:39])([OH:30])[CH2:28][CH3:29])[CH3:22])[CH2:12][C@@H:11]([OH:47])[CH2:10]1

参加物

4

反応物 2

HCID 2724141Tetrabutylammonium FluorideHCID 120201021alpha,3beta-bis(tert-butyldimethylsilyloxy)-20(5)-{(E)-(4-ethyl-4-triethylsilyloxy-2-hexenyloxy)}pregna-5,7,16-triene

生成物 1

HCID 229598111alpha,3beta-dihydroxy-20(S)-{(E)-(4-ethyl-4-hydroxy-2-hexenyloxy)}pregna-5,7,16-triene収率 78%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

実験手順

By the same procedure as in Example 9, 1α,3β-bis(tert-butyldimethylsilyloxy)-20(S)-{(E)-(4-ethyl-4-triethylsilyloxy-2-hexenyloxy)}pregna-5,7,16-triene (84.0 mg, 0.105 mmol), tetrahydrofuran (3 ml) and 1M tetra-n-butylammonium fluoride solution in tetrahydrofuran (2 ml) were reacted (heating under reflux for 5.5 hours) and worked up, and then the residue was purified by preparative thin layer chromatography (0.5 mm×1, dichloromethane:ethyl acetate:ethanol=20:80:1, developed once) to give the title compound as a colorless oil (37.3 mg, 78%).

後処理

  1. temperature(heating under reflux for 5.5 hours)
  2. customthe residue was purified by preparative thin layer chromatography (0.5 mm×1, dichloromethane

出典と根拠

ORDレコード
ord-4c07cfeed0e048868e14f2a85ed7fb27
出典データセット
uspto-grants-2001_02
特許番号
US06184398B2

反応ノート

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