Helvetica Chimica Acta p. 793 - 802 (1986)
Update date:2022-08-05
Topics:
Lang, Marc
Schoeni, Jean-Paul
Pont, Christiane
Fleury, Jean-Pierre
Treatment of enamines by tosylated isonitrosomalono derivatives gives access to 5-dialkylamino-1,1-dicyano 2-aza-1,3-dienes (or 1-methoxycarbonyl analogous) which are precursors of various regiospecific 5,6-substituted 2-amino-3-cyano (or methoxycarbonyl) pyrazines.Some examples of utilisation of these intermediates for synthesis of lumazines, pteridines, and other bicyclic skeletons are described.
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Doi:10.1246/cl.1986.183
(1986)Doi:10.1021/acsmedchemlett.7b00091
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(1986)Doi:10.1080/00397919608003762
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