Dichloromethane → [[3-[3,5-Difluoro-4-[4-(tert-butoxycarbonyl)-1-piperazinyl]phenyl]-2-oxo-5-oxazolidinyl]methyl]-p-toluenesulfonate

HRID 1940651

反応式

HRID 1940651 の反応式
[F:1][C:2]1[CH:3]=[C:4]([N:22]2[CH2:26][CH:25]([CH2:27][OH:28])[O:24][C:23]2=[O:29])[CH:5]=[C:6]([F:21])[C:7]=1[N:8]1[CH2:13][CH2:12][N:11]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH2:10][CH2:9]1.[C:30]1([CH3:40])[CH:35]=[CH:34][C:33]([S:36](Cl)(=[O:38])=[O:37])=[CH:32][CH:31]=1.C(Cl)Cl>N1C=CC=CC=1.CN(C)C1C=CN=CC=1>[F:21][C:6]1[CH:5]=[C:4]([N:22]2[CH2:26][CH:25]([CH2:27][O:28][S:36]([C:33]3[CH:34]=[CH:35][C:30]([CH3:40])=[CH:31][CH:32]=3)(=[O:38])=[O:37])[O:24][C:23]2=[O:29])[CH:3]=[C:2]([F:1])[C:7]=1[N:8]1[CH2:13][CH2:12][N:11]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH2:10][CH2:9]1

参加物

6

反応物 3

HCID 6344DichloromethaneHCID 73974-Toluenesulfonyl chloride2 回HCID 21462612[3-[3,5-Difluoro-4-[4-(tert-butoxycarbonyl)-1-piperazinyl]phenyl]-2-oxo-5-oxazolidinyl]methanol

生成物 1

HCID 86749743[[3-[3,5-Difluoro-4-[4-(tert-butoxycarbonyl)-1-piperazinyl]phenyl]-2-oxo-5-oxazolidinyl]methyl]-p-toluenesulfonate収率 90%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 1049Pyridine溶媒

反応条件

温度
0 °C

実験手順

The [3-[3,5-difluoro-4-[4-(tert-butoxycarbonyl)-1-piperazinyl]phenyl]-2-oxo-5-oxazolidinyl]methanol (24.2 g, 59 mmol) was dissolved in pyridine (110 mL) and then cooled to 0° C. (ice bath). Freshly recrystallized p-toluenesulfonyl chloride (13.4 g, 70 mmol) of was added and the reaction was allowed to stir at 0° C. for 2.5 hours under N2. The flask was then stoppered and stored in the refrigerator (5° C.) overnight. The reaction mixture became a pale pink slurry. TLC revealed that some alcohol still remained. The reaction mixture was treated with additional p-toluenesulfonyl chloride (1.12 g, 5.85 mmol), catalytic 4-(dimethylamino)pyridine, and 20 mL of dry CH2Cl2 to facilitate stirring. After 4 hours at 0° C., the reaction was found to be complete by TLC (5% MeOH/CH2Cl3, UV short wave). The mixture was added to 750 mL ice water and the precipitated product isolated via suction filtration, washing it with both water (1 L) and ether (500 mL). After drying in vacuo, 29.921 g (90%) of the title compound was obtained as white solid with mp 150.5°-151.5° C.

後処理

  1. customstored in the refrigerator (5° C.) overnight
  2. stirringto facilitate stirring
  3. waitAfter 4 hours at 0° C.
  4. customthe precipitated product isolated via suction filtration
  5. washwashing it with both water (1 L) and ether (500 mL)
  6. customAfter drying in vacuo

出典と根拠

ORDレコード
ord-0d15058d8a844b00a9e2dab393145908
出典データセット
uspto-grants-1997_12
特許番号
US05700799

関連ノート

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