Potassium Carbonate → (2R,5S)-4-Benzyloxycarbonylmethyl-2-methyl-5-((R)-3-methyl-morpholin-4-ylmethyl)-piperazine-1-carboxylic acid tert-butyl ester

HRID 1475483노트

반응식

HRID 1475483 반응식
Br[CH2:2][C:3]([O:5][CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)=[O:4].C([O-])([O-])=O.[K+].[K+].[C:19]([O:23][C:24]([N:26]1[CH2:31][C@H:30]([CH2:32][N:33]2[CH2:38][CH2:37][O:36][CH2:35][C@H:34]2[CH3:39])[NH:29][CH2:28][C@H:27]1[CH3:40])=[O:25])([CH3:22])([CH3:21])[CH3:20]>C(#N)C>[C:19]([O:23][C:24]([N:26]1[CH2:31][C@H:30]([CH2:32][N:33]2[CH2:38][CH2:37][O:36][CH2:35][C@H:34]2[CH3:39])[N:29]([CH2:2][C:3]([O:5][CH2:6][C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)=[O:4])[CH2:28][C@H:27]1[CH3:40])=[O:25])([CH3:22])([CH3:20])[CH3:21]

참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 62576Benzyl bromoacetateHCID 70980298(2R,5S)-tert-butyl 2-methyl-5-(((R)-3-methylmorpholino)methyl)piperazine-1-carboxylate

생성물 1

HCID 86724031(2R,5S)-4-Benzyloxycarbonylmethyl-2-methyl-5-((R)-3-methyl-morpholin-4-ylmethyl)-piperazine-1-carboxylic acid tert-butyl ester수율 86.7%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

Benzyl bromoacetate (25.2 mL, 126 mmol) and K2CO3 (50 g, 389 mmol) were added to a solution of (2R,5S)-2-methyl-5-((R)-3-methyl-morpholin-4-ylmethyl)-piperazine-1-carboxylic acid tert-butyl ester (30.5 g, 97.4 mmol) in acetonitrile (300 mL) and the reaction was stirred at room temperature for 18 h. The solid was removed by filtration and the solvent was removed in vacuo. The crude material was purified by chromatography using a pad of silica eluting with EtOAc/Petrol (1/9 to 4/6) to give the title compound (39 g). MS: [M+H]+=462.

후처리

  1. customThe solid was removed by filtration
  2. customthe solvent was removed in vacuo
  3. customThe crude material was purified by chromatography

출처 및 근거

ORD 기록
ord-69e879c5571a42a29780861834cabf02
출처 데이터셋
uspto-grants-2015_04
특허 번호
US09018214B2

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