A group of indole alkaloids, gelsepyrrodines A–C (1–3), with a new gelsedine skeleton
incorporated with a pyrrole ring, were isolated from the roots of Gelsemium elegans Benth …

Ethnopharmacological relevance Melodinus axillaris WT Wang has been widely used as an
important medicine in China. In the folk of China, its whole plant has been used for fractures …

Sigesbeckia orientalis, more commonly referred to as Herba Sigesbeckiae or Xi Xian Cao in
traditional Chinese medicine and hy thiêm in traditional Vietnamese medicine, is used in …

Bioassay-guided fractionation of roots of Beilschmiedia tsangii led to the isolation of six new
endiandric acid analogues: tsangibeilin A (1), tsangibeilin B (2), endiandramide A (3) …

Gelsemium elegans, the evergreen woody vine of the genus Gelsemium of the Loganiaceae
family in China, is a traditional Chinese medicinal plant. It is spicy, bitter, warm, highly toxic …

Three novel diterpenoid alkaloids, comprising two C19–diterpenoid alkaloids (1 and 2) and
one C20–diterpenoid alkaloid (3), were isolated from Delphinium ajacis, alongside the six …

As part of our ongoing search for novel and bioactive natural products in Karst plants, two
new sesqui-neolignans, difengpienol A (1) and difengpienol B (2), together with two known …

Two new indole alkaloids, 21-oxokoumine (1) and furanokoumine (2), were isolated from the
roots of Gelsemium elegans Benth together with three known compounds. The structures of …

Gelsemium elegans (G. elegans) is a plant of the Loganiaceae family, known for its indole
alkaloids, including gelsemine, koumine, and gelsenicine. Gelsemine and koumine are well …

Nine new ent-pimarane-type diterpenoids, siegesbeckia AI (1–9), together with four known
analogues ent-3α, 15, 16, 19-tetrahydroxypimar-8 (14)-ene (10), 15, 16-dihydroxypimar-8 …