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

HRID 218386
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HRID 218386 반응식
[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
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참가 물질

6

반응물 4

HCID 947NitrogenHCID 1068Dimethyl SulfideHCID 6331BoraneHCID 67365681(R)-tert-butyl 3-((R)-(3-chloro-5-fluorophenyl)(cyanomethoxy)methyl)piperidine-1-carboxylate

생성물 1

HCID 58017392(R)-tert-butyl 3-((R)-(2-aminoethoxy)(3-chloro-5-fluorophenyl)methyl)piperidine-1-carboxylate수율 26.4%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매
2회

실험 절차

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).

후처리

  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

출처 및 근거

ORD 기록
ord-98a46ac303394ab2b3995c47dad23cc3
출처 데이터셋
uspto-grants-2012_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08198453B2

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