Abstract Separation of the basic fractions from Formosan Fissistigma glaucescens, F. oldhamii and Goniothalamus amuyon afforded one new quaternary phenanthrene alkaloid, N-methylatherosperminium (15), along with the known alkaloids,(−)-discretamine (1),(−)- tetrahydropalmatine (2), palmatine (3),(−)-asimilobine (4),(−)-norannuradhapurine (5),(−)- crebanine (6),(−)-calycinine (fissoldine, fissistigine A)(7a),(−)-anolobine (8),(−)-xylopine (9 ...
