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

HRID 218386
ノート
印刷プレビュー

反応式

HRID 218386 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.N#N.B.S(C)C>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
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 947NitrogenHCID 1068Dimethyl SulfideHCID 6331BoraneHCID 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 26.4%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒
2 回

実験手順

A solution of (R)-tert-butyl 3-((R)-(3-chloro-5-fluorophenyl)(cyanomethoxy)methyl)piperidine-1-carboxylate (90 g) in anhydrous THF (1.3 L), under protection of N2, was heated to reflux followed by the dropwise addition of 10 M H3B.SMe2 in THF (70 mL, 0.7 mol). The mixture was stirred at reflux overnight. The reaction was quenched with MeOH (500 mL) and the solvent removed in vacuo, the residue was purified by column chromatography to give (R)-tert-butyl 3-((R)-(2-aminoethoxy)(3-chloro-5-fluorophenyl)methyl)piperidine-1-carboxylate (24 g, 0.062 mol).

後処理

  1. temperatureto reflux
  2. temperatureat reflux overnight
  3. customThe reaction was quenched with MeOH (500 mL)
  4. customthe solvent removed in vacuo
  5. customthe residue was purified by column chromatography

出典と根拠

ORDレコード
ord-98a46ac303394ab2b3995c47dad23cc3
出典データセット
uspto-grants-2012_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08198453B2

反応ノート

読み込み中…

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