Fig. 5 in Chemosystematic and evolutionary trends of the genistoid clade sensu stricto (Papilionoideae, Fabaceae)

Fig. 5. Structures of genistoid alkaloids: tetracyclic quinolizidine alkaloids (QAs) (45–49); α-pyridone QAs (50–54); QA esters (55–59); matrine-like QAs (60–61); calpurnine-like QAs (62–63); bicyclic QA (64); piptanthine-like QAs (65); monocrotaline-type pyrrolizidine alkaloids (PAs) (66–68); simple PAs (69–70); laburnamine-like PAs (71–72); dipiperidine alkaloids (73–75); smipine-like piperidine alkaloid (76); tropane alkaloid (77); imidazolic alkaloid (78); indolizidine alkaloids (79–80); isoquinoline alkaloid (81); purine alkaloid (82); pyridine alkaloid (83); indole alkaloid (84).