Scocycamides, a Pair of Macrocyclic Dicaffeoylspermidines with Butyrylcholinesterase Inhibition and Antioxidation Activity from the Roots of Scopolia tangutica.

A pair of new macrocyclic spermidine alkaloids, (+)-(S)-scocycamide and (−)-(R)-scocycamide, were isolated from the roots of Scopolia tangutica. Their structures were established by extensive spect...