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Acetyl chloride → methyl (1S,4R)-4-(5-{3-[(acetyloxy)methyl]-5-nitrophenyl}-1,3-thiazol-2-yl)-4-hydroxy-2,2-dimethylcyclohexanecarboxylate

HRID 1039949
ノート
印刷プレビュー

反応式

HRID 1039949 の反応式
[OH:1][C@:2]1([C:14]2[S:15][C:16]([C:19]3[CH:24]=[C:23]([N+:25]([O-:27])=[O:26])[CH:22]=[C:21]([CH2:28][OH:29])[CH:20]=3)=[CH:17][N:18]=2)[CH2:7][CH2:6][C@H:5]([C:8]([O:10][CH3:11])=[O:9])[C:4]([CH3:13])([CH3:12])[CH2:3]1.[C:30](Cl)(=[O:32])[CH3:31].C(N(CC)CC)C>ClCCl>[C:30]([O:29][CH2:28][C:21]1[CH:20]=[C:19]([C:16]2[S:15][C:14]([C@@:2]3([OH:1])[CH2:7][CH2:6][C@H:5]([C:8]([O:10][CH3:11])=[O:9])[C:4]([CH3:13])([CH3:12])[CH2:3]3)=[N:18][CH:17]=2)[CH:24]=[C:23]([N+:25]([O-:27])=[O:26])[CH:22]=1)(=[O:32])[CH3:31]
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 6367Acetyl chlorideHCID 8471TriethylamineHCID 67433080methyl (1S,4R)-4-hydroxy-4-{5-[3-(hydroxymethyl)-5-nitrophenyl]-1,3-thiazol-2-yl}-2,2-dimethylcyclohexanecarboxylate

生成物 1

HCID 67433015methyl (1S,4R)-4-(5-{3-[(acetyloxy)methyl]-5-nitrophenyl}-1,3-thiazol-2-yl)-4-hydroxy-2,2-dimethylcyclohexanecarboxylate収率 86%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒

実験手順

To a solution of the product of Step 4 (194 mg, 0.46 mmol) dissolved in dichloromethane (1.8 mL) at −20° C. was added acetyl chloride (34 μL, 0.48 mmol) and triethylamine (129 μL, 0.92 mmol). The reaction was warmed to room temperature and stirred for 2.5 h. The reaction was quenched with saturated aqueous sodium bicarbonate, and extracted with dichloromethane (3×). The combined organic layers were washed with brine, then dried over sodium sulfate, filtered, and concentrated to afford methyl(1S,4R)-4-(5-{3-[(acetyloxy)methyl]-5-nitrophenyl}-1,3-thiazol-2-yl)-4-hydroxy-2,2-dimethylcyclohexanecarboxylate (203 mg, 0.39 mmol, 86% yield) as a yellow foam. MS ESI: [M+H]+ m/z 463.1.

後処理

  1. customThe reaction was quenched with saturated aqueous sodium bicarbonate
  2. extractionextracted with dichloromethane (3×)
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-5c8d5af7effa4af6ac80f75e7be72457
出典データセット
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08551984B2

反応ノート

読み込み中…

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