Baeyer–Villiger-type oxidation of an immonium group: the structural establishment of naturally occurring amides related to benzo[c]phenanthridine alkaloids

Baeyer–Villiger-type oxidation of an immonium group: the structural establishment of naturally occurring amides related to benzo[c]phenanthridine alkaloids 8-hydroxydihydrochelerythrine and arnottianamide from roots of Toddalia asiatica Arnottianamide and Other Constituents of Zanthoxylum gillettii Root Zanthoisobutylamides A − C: rare dimeric C-6 substituent dihydrobenzophenanthridine alkaloids from the roots of Zanthoxylum nitidum Ailanthoidine, a novel benzo(C)phenanthridine alkaloid with a cyanopyridine pendant, from a Xanthoxylum species. Dihydrobenzo[<i>c</i>]phenanthridine Alkaloids from Stem Bark of <i>Zanthoxylum nitidum</i> Dihydrobenzo[<i>c</i>]phenanthridine Alkaloids from Stem Bark of <i>Zanthoxylum nitidum</i> A New Benzophenanthridine Alkaloid from Zanthoxylum nitidum A New Benzophenanthridine Alkaloid from &lt;I&gt;Zanthoxylum nitidum&lt;/I&gt; Four new alkylamides from the roots of<i>Zanthoxylum nitidum</i>