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Synthesis of derivatives of pyrazine-2,3-dicarboxylic acids and pyrazine-2,3-dicarbonamides from 2,3-dichloroquinoxaline

✍ Scribed by A. S. Elina; I. S. Musatova

Book ID: 112325381
Publisher: Springer US
Year: 1973
Tongue: English
Weight: 368 KB
Volume: 9
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf00470353

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## Abstract The synthesis of the title compounds was achieved using the key intermediate ethyl 4,6‐dimethyl‐3‐(pyrrol‐1‐yl)thieno[2,3‐__b__]pyridine‐2‐ carboxylate 2. This latter compound was obtained __via__ the interaction of the thienopyridine amino ester 1 with 2,5 dimethoxytetrahydrofuran in a