Mv. Dachriyanus,"sargent et Fs. Wahyuni, (+)-Isochimonanthine, a pyrrolidinoindole alkaloid from Argostemma yappii King, AUST J CHEM, 53(2), 2000, pp. 159-160
Extraction of the leaves of Argostemma yappii King (Rubiaceae) has yielded
the new dimeric pyrrolidinoindole alkaloid (+)-isochimonanthine (6), the st
ructure of which followed from its spectroscopic properties.