Photocyclization of enamides. XXV Syntheses of despyrrole analogues of ergot alkaloids including elymoclavine, lysergol, isolysergol, lysergine, isolysergine, fumigaclavine, agroclavine, and lysergene.
A general synthetic route was developed to the despyrrole analogues of a group of clavine alkaloids; virtually no previous synthetic work on these compounds has been reported.