Functionalised pyrrolidinones derived from (S)-pyroglutamic acid by cycloaddition reactions per Bailey, J, Cherry, D, Crapnell, K, Moloney, M, Shim, S, Bamford, M, Lamont, R

Regioselective Dieckmann cyclisations leading to enantiopure highly functionalised tetramic acid derivatives per Andrews, MD, Brewster, A, Crapnell, K, Ibbett, A, Jones, T, Moloney, M, Prout, K, Watkin, D