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Water → (-)-(1R)-1-(2,2-Dimethylbenzo[1,2-d]-1,3-dioxan-6-yl)2-[((2S)-7-hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)amino]-ethanol

HRID 367334
ノート
印刷プレビュー

反応式

HRID 367334 の反応式
[CH3:1][C:2]1([CH3:28])[O:7][C:6]2[CH:8]=[CH:9][C:10]([C@@H:12]([OH:27])[C:13]([NH:15][C@H:16]3[CH2:25][CH2:24][C:23]4[C:18](=[CH:19][C:20]([OH:26])=[CH:21][CH:22]=4)[CH2:17]3)=O)=[CH:11][C:5]=2[CH2:4][O:3]1.N(CCO)(CCO)CCO.O>O1CCCC1>[CH3:1][C:2]1([CH3:28])[O:7][C:6]2[CH:8]=[CH:9][C:10]([C@@H:12]([OH:27])[CH2:13][NH:15][C@H:16]3[CH2:25][CH2:24][C:23]4[C:18](=[CH:19][C:20]([OH:26])=[CH:21][CH:22]=4)[CH2:17]3)=[CH:11][C:5]=2[CH2:4][O:3]1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 962WaterHCID 7618TriethanolamineHCID 70136692(-)-(2R)-2-(2,2-dimethylbenzo[1,2-d]-1,3-dioxan-6-yl)-2-hydroxy-N-((2S)-7-hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)acetamide

生成物 1

HCID 70136859(-)-(1R)-1-(2,2-Dimethylbenzo[1,2-d]-1,3-dioxan-6-yl)2-[((2S)-7-hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)amino]-ethanol収率 84.7%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒
3 回

実験手順

(-)-(2R)-2-(2,2-Dimethylbenzo[1,2-d]-1,3-dioxan-6-yl)-2-hydroxy-N-((2S)-7-hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)acetamide (686 mg) was dissolved in 50 ml of tetrahydrofuran, 3.58 ml of 2 M borane-dimethylsulfide complex in tetrahydrofuran was added, and the mixture was heated under reflux for 3 hours. Then, a solution of 1.34 g of triethanolamine in 5.0 ml of tetrahydrofuran was added, and the mixture was again heated under reflux for 15 hours. After cooling, water was added to the reaction solution, and the mixture was extracted with ethyl acetate. The extract was washed with water and then dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the resulting residue was recrystallized from ethyl acetate to give 560 mg of (-)-(1R)-1-(2,2-dimethylbenzo[1,2-d]-1,3-dioxan-6-yl)-2-[((2S)-7-hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)amino]ethanol having a melting point of 156 to 158° C.

後処理

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 3 hours
  3. temperaturethe mixture was again heated
  4. temperatureunder reflux for 15 hours
  5. temperatureAfter cooling
  6. extractionthe mixture was extracted with ethyl acetate
  7. washThe extract was washed with water
  8. dry with materialdried over anhydrous magnesium sulfate
  9. customThe solvent was evaporated under reduced pressure
  10. customthe resulting residue was recrystallized from ethyl acetate

出典と根拠

ORDレコード
ord-6aba3e79893d404e96b96985ccb37ecc
出典データセット
uspto-grants-2000_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06133266

反応ノート

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