Two new sarpagine-type indole alkaloids (1 and 2), together with five known alkaloids; 12-
methoxy-4-methylvoachalotine (3), 16-demethoxycarbonylvoacamine (4), isositsirikine (5) …

Two new bisindole alkaloids, bisnaecarpamines A (1) and B (2), possessing a vobasine-
sarpagine type skeleton were isolated from the bark of Tabernaemontana macrocarpa Jack …

Two new indole alkaloids, bisnicalaterine D (1), consisting of an eburnane and a corynanthe
type of skeletons, and nicalaterine A (2) were isolated from the bark of Hunteria zeylanica …

A new trimeric monoterpenoid indole alkaloid, divaricamine A (1) consisting of a vobasine-
vobasine-iboga type skeleton, was isolated from the root of Tabernaemontana divaricata …

Five undescribed carboxy-indole alkaloids with corynanthe skeleton, penduflorines A–E (1–
3) as well as a voacangine-N-oxide alkaloid, tabernaemontine (4), were isolated along with …

Three bisbenzylisoquinoline alkaloids were isolated for the first time from Stephania rotunda
tuber. Their structures were elucidated by spectroscopic methods and their antiplasmodial …

Seven isoquinoline alkaloids isolated from the bark of Actinodaphne macrophylla in this
study demonstrated in vitro antiplasmodial activities against Plasmodium falciparum 3D7 …

Two new acyclic diterpenes, melidianolic acids A (1) and B (2), have been isolated from the
bark of Aphanamixis grandifolia. Their structures were elucidated on the basis of …

Fourteen compounds isolated from Stephania venosa, Prismatomeris sessiliflora, Diospyros
montana and Murraya siamensis were tested for their antimalarial potential. The 6a, 7 …

In the course of our investigations on Strychnos usambarensis leaves in order to isolate
isostrychnopentamine, the main alkaloid responsible for the antiplasmodial activity of the …