Benzyl carbazate → N'-[2-(tert-Butoxycarbonyl-methyl-amino)-acetyl]-hydrazine Carboxylic Acid Benzyl Ester

HRID 34052

반응식

HRID 34052 반응식
[C:1]([O:5][C:6]([N:8]([CH3:13])[CH2:9][C:10]([OH:12])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH2:14]([O:21][C:22]([NH:24][NH2:25])=[O:23])[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.O.ON1C2C=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C.Cl.C(N=C=NCCCN(C)C)C>CN(C)C=O.O>[CH2:14]([O:21][C:22]([NH:24][NH:25][C:10](=[O:12])[CH2:9][N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[CH3:13])=[O:23])[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1

참가 물질

8

실험 절차

6.95 g of 2-(tert-butoxycarbonyl-methyl-amino)-acetic acid, 6.1 g of hydrazine carboxylic acid benzyl ester, 6.18 g of 1-hydroxybenzotriazole monohydrate and 19.2 mL of N,N-diisopropylethylamine were dissolved in 120 mL of N,N-dimethylformamide, and 10.6 g of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride was added under stirring at room temperature. After stirring at room temperature for 17 hours, the reaction solution was added with water and extracted with ethyl acetate, and the resultant organic layer was washed with saturated brine and dried over magnesium sulfate. The solvent was evaporated, followed by purification by silica gel column chromatography (hexane:ethyl acetate=1:1), to obtain 10.9 g of the title compound.

후처리

  1. stirringAfter stirring at room temperature for 17 hours
  2. extractionextracted with ethyl acetate
  3. washthe resultant organic layer was washed with saturated brine
  4. dry with materialdried over magnesium sulfate
  5. customThe solvent was evaporated
  6. customfollowed by purification by silica gel column chromatography (hexane:ethyl acetate=1:1)

출처 및 근거

ORD 기록
ord-7308ab218bc44c31ba569428a619ac05
출처 데이터셋
uspto-grants-2008_09
특허 번호
US07429609B2

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