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Methanol → (R)-tert-butyl 3-((R)-(2-aminoethoxy)(3-chloro-5-fluorophenyl)methyl)piperidine-1-carboxylate

HRID 451997
ノート
印刷プレビュー

反応式

HRID 451997 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([C@H:9]([O:23][CH2:24][C:25]#[N:26])[C@@H:10]2[CH2:15][CH2:14][CH2:13][N:12]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:11]2)[CH:5]=[C:6]([F:8])[CH:7]=1.S(C)C.CO>C1COCC1>[NH2:26][CH2:25][CH2:24][O:23][C@@H:9]([C:4]1[CH:5]=[C:6]([F:8])[CH:7]=[C:2]([Cl:1])[CH:3]=1)[C@@H:10]1[CH2:15][CH2:14][CH2:13][N:12]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:11]1
参加物反応条件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 887MethanolHCID 1068Dimethyl SulfideHCID 67365681(R)-tert-butyl 3-((R)-(3-chloro-5-fluorophenyl)(cyanomethoxy)methyl)piperidine-1-carboxylate

生成物 1

HCID 58017392(R)-tert-butyl 3-((R)-(2-aminoethoxy)(3-chloro-5-fluorophenyl)methyl)piperidine-1-carboxylate収率 28%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒
2 回

反応条件

温度
0 °C

実験手順

(R)-tert-Butyl 3-((R)-(3-chloro-5-fluorophenyl)(cyanomethoxy)methyl)piperidine-1-carboxylate (4.4 g, 10.2 mmol, crude) was dissolved in anhydrous THF (60 mL), and the solution was heated to reflux under nitrogen. A solution of 10 M of BH3.Me2S (3 mL, 30.6 mmol) in THF was added dropwise and stirring was continued under reflux overnight. The resulting solution was cooled to 0° C., CH3OH was added dropwise to quench the reaction. Evaporation of the solvent to give the crude product, which was purified by silica column to give (R)-tert-butyl 3-((R)-(2-aminoethoxy)(3-chloro-5-fluorophenyl)methyl)piperidine-1-carboxylate (1.1 g, yield 28%), which was used in the next step without further purification.

後処理

  1. temperaturethe solution was heated
  2. temperatureto reflux under nitrogen
  3. temperatureunder reflux overnight
  4. customto quench
  5. customthe reaction
  6. customEvaporation of the solvent
  7. customto give the crude product, which
  8. customwas purified by silica column

出典と根拠

ORDレコード
ord-4aa62125d94042dfaa672ec5355b38fd
出典データセット
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08487108B2

反応ノート

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