AResearch School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 0200, Australia. BCorresponding author. Email: mgb@rsc.anu.edu .au ... The title alkaloid 1has been synthesized from (S)-proline (2) using a sequence of reactions involving oxidative bromination (of 2), N-alkylation, Suzuki–Miyaura cross-coupling, and bromination steps. ... Introduction The marine alkaloid ningalin B (1, Fig. 1) was isolated, together with ...