RSS-Feed abonnieren
Bitte kopieren Sie die angezeigte URL und fügen sie dann in Ihren RSS-Reader ein.
https://www.thieme-connect.de/rss/thieme/de/10.1055-s-00000084.xml
Synthesis 2001(5): 0768-0772
DOI: 10.1055/s-2001-12764
DOI: 10.1055/s-2001-12764
PAPER
© Georg Thieme Verlag Stuttgart · New York
2,6-Diamino-3,5-diaryl-1,4-pyrazine Derivatives as Novel Antioxidants
Weitere Informationen
Publikationsverlauf
Received
18 September 2000
Publikationsdatum:
28. September 2004 (online)


Abstract
The coupling of arylboronic acids with 2,6-diamino-3,5-dibromo-1,4-pyrazine (6) gave 2,6-diamino-3,5-diaryl-1,4-pyrazines (7). The reaction of 7 with methyl glyoxal in aqueous EtOH-HCl led to the N,N"-disubstituted products 8, instead of the expected bicyclic imidazolopyrazinones 1. The 2,6-bis[1-(ethoxycarbonyl)-ethylamino]-3,5-diaryl-1,4-pyrazines 8 are powerful inhibitors of the AAPH-induced linoleate peroxidation.
Key words
2,6-diamino-3,5-diaryl-1,4-pyrazine - imidazolopyrazinone - antioxidant - coelenterazine analogs