title: Enamide photochemistry. Synthesis of protoberberine iodides from 1-benzylidene-3,4-dihydro-2(1H)-isoquinoline carboxaldehydes.
mesh_terms: D000447:Aldehydes; D001597:Benzylidene Compounds; D001599:Berberine / Q000031:analogs & derivatives / Q000138:chemical synthesis*; D001600:Berberine Alkaloids / Q000138:chemical synthesis*; D007454:Iodides / Q000138:chemical synthesis; D007546:Isoquinolines; D008722:Methods; D010777:Photochemistry
chemical_list: D000447:Aldehydes; D001597:Benzylidene Compounds; D001600:Berberine Alkaloids; D007454:Iodides; D007546:Isoquinolines; D001599:Berberine