Trifluoroacetic acid → (6aR,7S,9aS,11S,13aS)-2,3,6,6a,7,8,9,9a,10,11,12,13-dodecahydro-11-hydroxy-6a,7,10,10-tetramethyl-3-oxo-5-diphenoxyphosphinyloxy-1H-benzo[8,8a][1]benzopyrano[2,3-e]isoindole

HRID 1417633ノート

反応式

HRID 1417633 の反応式
C(OC([N:8]1[CH2:16][C:15]2[C:14]3[O:17][C@@:18]45[CH2:28][CH2:27][C@H:26]([OH:29])[C:25]([CH3:31])([CH3:30])[C@@H:24]4[CH2:23][CH2:22][C@H:21]([CH3:32])[C@@:19]5([CH3:33])[CH2:20][C:13]=3[C:12]([O:34][P:35]([O:44][C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)([O:37][C:38]3[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=3)=[O:36])=[CH:11][C:10]=2[C:9]1=[O:51])=O)(C)(C)C.C1(OC)C=CC=CC=1.FC(F)(F)C(O)=O>ClCCl>[OH:29][C@@H:26]1[C:25]([CH3:31])([CH3:30])[C@H:24]2[C@@:18]3([O:17][C:14]4[C:15]5[CH2:16][NH:8][C:9](=[O:51])[C:10]=5[CH:11]=[C:12]([O:34][P:35]([O:44][C:45]5[CH:46]=[CH:47][CH:48]=[CH:49][CH:50]=5)([O:37][C:38]5[CH:39]=[CH:40][CH:41]=[CH:42][CH:43]=5)=[O:36])[C:13]=4[CH2:20][C@:19]3([CH3:33])[C@@H:21]([CH3:32])[CH2:22][CH2:23]2)[CH2:28][CH2:27]1

参加物

5

反応物 3

HCID 6422Trifluoroacetic acidHCID 7519AnisoleHCID 86753840(6aR,7S,9aS,11S,13aS)-2-(t-butoxycarbonyl)-2,3,6,6a,7,8,9,9a, 10,11,12,13-dodecahydro-11-hydroxy-6a,7,10,10-tetramethyl-3-oxo-5-diphenoxyphosphinyloxy-1H-benzo[8,8a][1]benzopyrano[2,3-e]isoindole

生成物 1

HCID 86753841(6aR,7S,9aS,11S,13aS)-2,3,6,6a,7,8,9,9a,10,11,12,13-dodecahydro-11-hydroxy-6a,7,10,10-tetramethyl-3-oxo-5-diphenoxyphosphinyloxy-1H-benzo[8,8a][1]benzopyrano[2,3-e]isoindole収率 91.3%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of the above Compound (56a) (256 mg, 0.36 mmol) in 2.5 ml of dry dichloromethane were added 50 μl of anisole and 2.5 ml of trifluoroacetic acid, and the mixture stirred for 10 min at the same temperature, and then for one hour at room temperature. The reaction mixture was concentrated under reduced pressure. The residue was made basic with 7% aqueous sodium hydrogen carbonate solution, and extracted with ethyl acetate. The extract was washed with water, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by a column chromatography (silica gel 15 g; ethyl acetate) to give 203 mg (91%) of Compound (57a).

後処理

  1. waitfor one hour at room temperature
  2. concentrationThe reaction mixture was concentrated under reduced pressure
  3. extractionextracted with ethyl acetate
  4. washThe extract was washed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by a column chromatography (silica gel 15 g; ethyl acetate)

出典と根拠

ORDレコード
ord-f645afbcbad640f4908ac8934868dc0f
出典データセット
uspto-grants-1999_03
特許番号
US05876984

反応ノート

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