title: Studies on the syntheses of heterocyclic compounds. Part 678. Photoracemisation and photoepimerisation of the phthalidylisoquinoline alkaloids (--)-alpha-Narcotine and (--)-beta-Hydrastine.
mesh_terms: D000470:Alkaloids / Q000528:radiation effects*; D007546:Isoquinolines / Q000528:radiation effects*; D009665:Noscapine / Q000528:radiation effects*; D010777:Photochemistry
chemical_list: D000470:Alkaloids; D007546:Isoquinolines; D009665:Noscapine