Abstract Forty-three quinolizidine alkaloids (1–43), including twelve new matrine-type ones,
sophalodes A–L (1–7, 17, 19 and 28–30), were isolated from the seeds of Sophora …

Abstract Two new aporphinoid alkaloids,(+)-6S-ocoteine N-oxide and (+)-norocoxylonine,
were isolated from the leaves and trunk bark of Ocotea acutifolia (Lauraceae) along with …

DNA topoisomerase (Topo) II is one of the target enzymes for chemotherapeutic drug
development. Lanostane-type triterpenoids with various functional groups (–Cl,–Br,–OMe …

From the leaves of Solanum campaniforme (Solanaceae), eight solanidane alkaloids were
isolated, four of which contain a p-hydroxyphenylethylamine unit. Their structures were …

The topoisomerases (TOPO) play indispensable roles in DNA metabolism, by regulating the
topological state of DNA. Topoisomerase I and II are the well-established drug-targets for the …

Four new alkaloids (1–4) belonging to rare examples of bis-amide matrine-type were
isolated from the seeds of sophora alopecuroides. Their structures including absolute …

Main observation and conclusion A phytochemical investigation on the seeds of Sophora
alopecuroides led to obtaining fourteen structurally diverse matrine‐based alkaloids (1 …

A novel skeleton alkaloid was obtained from Portulaca oleracea L., which was identified as
10, 11-dihydroxybenzo [5′, 6′] pentaleno [1′, 2′: 3, 4] pyrrolo [2, 1-b] oxazol-7 (11bH) …

Scutellaria baicalensis Georgi (SBG) has been widely used as medical plant in East Asia
with remarkable anti-cancer activity. However, the underlying mechanisms are still confused …

A new coumestan named bavacoumestan D (1), together with five known compounds (2-6),
was isolated from EtOAc-soluble extract of seeds of Psoralea corylifolia. Their structures …