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3-Methylbutanal → 4-[(4-Benzyloxy-phenyl)-(3-methyl-butyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester

HRID 1069186
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인쇄 미리보기

반응식

HRID 1069186 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[CH:20]=[CH:19][C:18]([O:21][CH2:22][C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=3)=[CH:17][CH:16]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH:29](=O)[CH2:30][CH:31]([CH3:33])[CH3:32].[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl.CCOC(C)=O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([N:14]([C:15]2[CH:16]=[CH:17][C:18]([O:21][CH2:22][C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=3)=[CH:19][CH:20]=2)[CH2:29][CH2:30][CH:31]([CH3:33])[CH3:32])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
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참가 물질

6

반응물 3

HCID 115523-MethylbutanalHCID 5049666Sodium triacetoxyborohydrideHCID 105479494-(4-Benzyloxy-phenylamino)-piperidine-1-carboxylic acid tert-butyl ester

생성물 1

HCID 537121684-[(4-Benzyloxy-phenyl)-(3-methyl-butyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester수율 93%

시약·촉매·용매 2

HCID 6344Dichloromethane
용매
HCID 8857Ethyl Acetate용매

반응 조건

온도
0 °C

실험 절차

4-(4-Benzyloxy-phenylamino)-piperidine-1-carboxylic acid tert-butyl ester (40a, 3.0 g, 7.84 mmol) was dissolved in CH2Cl2 (50 mL) and treated with isovaleraldehyde (0.84 mL, 7.84 mmol). The reaction was stirred for 30 minutes, then cooled to 0° C., treated with NaBH(OAc)3, and stirred overnight. The reaction was diluted with EtOAc (400 mL), washed with saturated bicarbonate solution and brine, dried over Na2SO4, and concentrated. The residue was chromatographed on silica gel eluting with 6% MeOH/CH2Cl2 to give 3.3 g (93%) of the desired product.

후처리

  1. stirringstirred overnight
  2. washwashed with saturated bicarbonate solution and brine
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated
  5. customThe residue was chromatographed on silica gel eluting with 6% MeOH/CH2Cl2

출처 및 근거

ORD 기록
ord-9000cfa8103c4a9aaa60dc9dac39e32e
출처 데이터셋
uspto-grants-2001_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06251919B1

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