title: Carcinogenic nitrogen compounds. LXXVII. A novel synthesis of  -carbolines.
mesh_terms: D000470:Alkaloids / Q000138:chemical synthesis; D001593:Benzyl Compounds; D002273:Carcinogens; D003500:Cyclization; D007211:Indoles / Q000138:chemical synthesis*; D007536:Isomerism; D008722:Methods; D011725:Pyridines / Q000138:chemical synthesis*
chemical_list: D000470:Alkaloids; D001593:Benzyl Compounds; D002273:Carcinogens; D007211:Indoles; D011725:Pyridines