Haskins Charlotte M, Knight David W
School of Chemistry, Cardiff University, Main Building, UK.
Chem Commun (Camb). 2005 Jul 7(25):3162-4. doi: 10.1039/b417625c. Epub 2005 May 18.
The indolic terpene alkaloid alpha-cyclopiazonic acid has been prepared in 11 steps from indole-4-methanol; the key step is a carbocationic cascade, terminated by a 4-nitrosulfonamide group and initiated by benzylic carbocation formation directly from the intermediate , which gives the tetracyclic product in 74% yield.
