Nitrogen → HCID 178512906, Verbindung

HRID 1531260

Reaktionsgleichung

[NH:1](C(OC(C)(C)C)=O)[C@@H:2]([C:30]([NH:32][CH2:33][C:34]([NH:36][C@H:37]([C:55]([OH:57])=[O:56])[CH2:38][CH2:39][CH2:40][NH:41][C:42](=[NH:54])[NH:43]S(C1C=CC(C)=CC=1)(=O)=O)=[O:35])=[O:31])[CH2:3][CH2:4][CH2:5][NH:6][C:7](=[NH:29])[N:8](C(OCC1C=CC=CC=1)=O)C(OCC1C=CC=CC=1)=O.[S:65]1[CH:69]=[CH:68][N:67]=[CH:66]1.C1(OC)C=CC=CC=1.N#N>CSCC.CCOCC.CCCCCC>[NH2:1][C@@H:2]([C:30]([NH:32][CH2:33][C:34]([NH:36][C@H:37]([C:55]([OH:57])=[O:56])[CH2:38][CH2:39][CH2:40][NH:41][C:42](=[NH:43])[NH2:54])=[O:35])=[O:31])[CH2:3][CH2:4][CH2:5][NH:6][C:7](=[NH:8])[NH2:29].[S:65]1[CH:69]=[CH:68][N:67]=[CH:66]1

Komponenten

Reaktionsbedingungen

Temperatur: 0 °C

Versuchsvorschrift

A 100 mg portion of Boc-(D)-Arg(Cbz2)-Gly-Arg(Tos)-Thiazole, 1 mL of anisole and 4 drops of MeSEt were placed in HF-cleavage vessel and cooled under liquid N2. HF (10 mL) was then condensed into the reaction mixture and stirred at 0° C. for 1.25 h. HF was removed under vacuum to give a gum-like residue which was titrated with 20 mL of 50% Et2O-hexane and the organic wash removed by filtration. The gum residue was dissolved in 30 mL of 30% aq. HOAc and filtered through the above sintered funnel. The filtrate was lyophilized to give a powder which was purified by RP-HPLC to give 28 mg (60% yield) of (D)-Arg-Gly-Arg-thiazole. FAB-MS (M+H)+=455.2

Aufarbeitung

customcondensed into the reaction mixture
customHF was removed under vacuum
customto give a gum-like residue which
washthe organic wash
customremoved by filtration
dissolutionThe gum residue was dissolved in 30 mL of 30% aq. HOAc
filtrationfiltered through the above sintered funnel
customto give a powder which
customwas purified by RP-HPLC

Quellen und Nachweise

ORD-Eintrag: ord-a193d7cbdc9c4b0393d2a4ed08af5478
Quelldatensatz: uspto-grants-2001_03
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US06197748B1

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