Pyrazine chemistry. Part 13. Preparation and reactions of pyrazine N-oxides related to mycelianamide
Abstract
The synthesis is described of 2,5-dihydroxy-3-(4-hydroxybenzyl)-6-methylpyrazine 1,4-dioxide (9), an isomer of degeranylmycelianamide (7), starting with 3-(4-hydroxybenzyl)-6-methylpiperidine-2,5-dione. The chemistry of the dioxide (9) has been explored; acetylation of this compound and of degeranylmycelianamide has been shown to afford the same product.