Abstract Ten new bisbenzylisoquinoline alkaloids (1–10) and eight known analogues (11–
18) were obtained from the roots of Stephania tetrandra. The structures of these compounds …

Six new bisbenzylisoquinoline alkaloids (1–6) and seven known compounds (8–14) were
isolated from the tubers of Stephania epigaea, in addition to the major alkaloid …

Four undescribed bisbenzylisoquinoline alkaloids, designated as Stephtetrandrine AD, were
isolated from the roots of Stephania tetrandra. Their structures were elucidated by IR …

The genus Stephania belongs to the family Menispermaceae, widely distributed in Africa,
India, Southeast Asia, and the northern and eastern parts of Australia. They comprise more …

Two new quinolizidine-based alkaloids (2 and 12), along with ten known ones (1, 3–11)
were isolated from the roots of S. tonkinensis. Their structures were determined by …

Methods The dried stems and leaves of Stephania cepharantha Hayata were percolated
with 95% ethanol and the solvent was removed by rotary evaporation to give a concentrate …

Two new hasubanan alkaloids, stephalonester A (1) and stephalonester B (2), together with
four known compounds, stephalonine E (3), longanone (4), cephatonine (5), and …

A new monoquatemary bisbenzylisoquinoline alkaloid,(+)-2-N-methyl-fangchinoline [4], was
obtained from the root of Stephania tetrandra, the traditional Chinese medicine “fen-fang-ji,” …

Three new isoquinoline alkaloids, northalifoline 7-O-β-glucopyranoside (1),(R)-
isococlaurine 4'-O-β-glucopyranoside (3) and (1R, 3S)-1-(4-hydroxybenzyl)-6, 7-dihydroxy …

Stephania epigaea HS Lo is a folk medicine widely distributed in the south of China,
especially in Yunnan and Guangxi province. An in vitro anti-neuroinflammatory study …