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Diisopropylethylamine → N-[[1-(2-azidoethyl)cyclopentyl]carbonyl]-4nitro-L-phenylalanine methyl ester

HRID 2230811
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HRID 2230811 반응식
Cl.[CH3:2][O:3][C:4](=[O:17])[C@H:5]([CH2:7][C:8]1[CH:13]=[CH:12][C:11]([N+:14]([O-:16])=[O:15])=[CH:10][CH:9]=1)[NH2:6].[N:18]([CH2:21][CH2:22][C:23]1([C:28](O)=[O:29])[CH2:27][CH2:26][CH2:25][CH2:24]1)=[N+:19]=[N-:20].F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C>ClCCl.CN(C=O)C.O.C(OCC)(=O)C.CCCCCC>[CH3:2][O:3][C:4](=[O:17])[C@H:5]([CH2:7][C:8]1[CH:13]=[CH:12][C:11]([N+:14]([O-:16])=[O:15])=[CH:10][CH:9]=1)[NH:6][C:28]([C:23]1([CH2:22][CH2:21][N:18]=[N+:19]=[N-:20])[CH2:27][CH2:26][CH2:25][CH2:24]1)=[O:29]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

10

반응물 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 11715866Methyl 4-nitro-L-phenylalaninate hydrochlorideHCID 226601251-(2-Azidoethyl)cyclopentanecarboxylic acid

생성물 1

HCID 12042583N-[[1-(2-azidoethyl)cyclopentyl]carbonyl]-4nitro-L-phenylalanine methyl ester수율 95.1%

시약·촉매·용매 5

HCID 962Water용매HCID 6228Dimethylformamide용매HCID 6344Dichloromethane용매HCID 8058Hexane용매HCID 8857Ethyl Acetate용매

실험 절차

A solution of 4-nitro-L-phenylalanine methyl ester hydrochloride (3.0 g, 11.5 mmol), 1-(2-azidoethyl)cyclopentane carboxylic acid (2.3 g, 12.7 mmol) and BOP (5.34 g, 12.1 mmol) in dichloromethane (6 mL) and DMF (4 mL) was treated with diisopropylethylamine (4.2 mL, 24.2 mmol). The mixture was stirred overnight at which time TLC (1:1 hexane:ethyl acetate) indicated no more starting material. The mixture was diluted with water, extracted with ethyl acetate. The extracts were washed with water and brine, then were dried (Na2SO4), filtered and evaporated in vacuo. The residue was purified by chromatography over silica gel (3:1 hexane:ethyl acetate) to afford 4.26 g of N-[[1-(2-azidoethyl)cyclopentyl]carbonyl]-4-nitro-L-phenylalanine methyl ester.

후처리

  1. extractionextracted with ethyl acetate
  2. washThe extracts were washed with water and brine
  3. dry with materialwere dried (Na2SO4)
  4. filtrationfiltered
  5. customevaporated in vacuo
  6. customThe residue was purified by chromatography over silica gel (3:1 hexane:ethyl acetate)

출처 및 근거

ORD 기록
ord-034571a6037a4847ace20ad81b751ac6
출처 데이터셋
uspto-grants-2002_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06426348B1

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