Nalpha-isobutyl-Nalpha-(4-methylbenzenesulfonyl)-L-lysine methyl ester → methyl (2S)-2-[isobutyl(p-tolylsulfonyl)amino]-6-[[(2S)-3-phenyl-2-(p-tolylsulfonylamino)propanoyl]amino]hexanoate

HRID 396902Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 396902
[CH3:1][O:2][C:3](=[O:25])[C@H:4]([CH2:20][CH2:21][CH2:22][CH2:23][NH2:24])[N:5]([CH2:16][CH:17]([CH3:19])[CH3:18])[S:6]([C:9]1[CH:14]=[CH:13][C:12]([CH3:15])=[CH:11][CH:10]=1)(=[O:8])=[O:7].[CH2:26]1[CH2:30]O[CH2:28][CH2:27]1.[C:31]([O-:34])([O-])=O.[K+].[K+]>Cl>[CH3:28][C:27]1[CH:11]=[CH:10][C:9]([S:6]([NH:5][C@H:30]([C:31]([NH:24][CH2:23][CH2:22][CH2:21][CH2:20][C@H:4]([N:5]([S:6]([C:9]2[CH:14]=[CH:13][C:12]([CH3:15])=[CH:11][CH:10]=2)(=[O:8])=[O:7])[CH2:16][CH:17]([CH3:18])[CH3:19])[C:3]([O:2][CH3:1])=[O:25])=[O:34])[CH2:26][C:27]2[CH:21]=[CH:20][CH:4]=[CH:3][CH:28]=2)(=[O:7])=[O:8])=[CH:30][CH:26]=1

Komponenten

4

Edukt 2

HCID 22975548Nalpha-isobutyl-Nalpha-(4-methylbenzenesulfonyl)-L-lysine methyl esterHCID 86626146potassium carbonate THF

Produkt 1

HCID 508591methyl (2S)-2-[isobutyl(p-tolylsulfonyl)amino]-6-[[(2S)-3-phenyl-2-(p-tolylsulfonylamino)propanoyl]amino]hexanoateAusbeute 77 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 313Hydrochloric AcidLösungsmittel

Versuchsvorschrift

To a stirred solution of Nα-isobutyl-Nα-(4-methylbenzenesulfonyl)-L-lysine methyl ester (369 mg, 1 mmol, example 65, step C) in THF/K2CO3 (1M) (3 mL/3 mL) was added Nα-(4-methylbenzenesulfonyl)-L-phenylalanine N-hydroxysuccinimide ester (500 mg, 1.2 mmol). The reaction mixture was stirred overnight, then diluted with 1N HCl and extracted with EtOAc. The organic layer was dried (MgSO4) and concentrated. The crude was purified by flash chromatography using hexane/EtOAc as eluent to afford the desired product (77% yield).

Aufarbeitung

  1. extractionextracted with EtOAc
  2. dry with materialThe organic layer was dried (MgSO4)
  3. concentrationconcentrated
  4. customThe crude was purified by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-b979637fab174e1ba629c9f5ac8745f1
Quelldatensatz
uspto-grants-2003_08
Patentnummer
US06608100B1

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