Iain Coldham, Katherine M. Crapnell, Joan-Carles Fernàndez, Thomas F. N. Haxell, Alan B. Treacy, Simon J. Coles, Michael B. Hursthouse and Jonathan D. Moseley
The key step in a new, stereoselective approach to the manzamine alkaloids involves an intramolecular azomethine ylide cycloaddition reaction, which forms rings B and C simultaneously, together with three new chiral centres; this has allowed a rapid access to the core ABC ring system of manzamine A.