Indole alkaloids represent a large subset of natural products, with more than 4100 known
compounds. The majority of these alkaloids are biologically active, with some exhibiting …

Monoterpenoid indole alkaloids (MIAs) represent a major class of active ingredients from the
plants of the genus Gelsemium. Gelsemium MIAs with diverse chemical structures can be …

Twenty-six structurally diverse Amaryllidaceae alkaloids, including ten undescribed
compounds named zephyranines A–I and 6-O-ethylnerinine, two undescribed natural …

Myxobacteria are a prolific source of structurally diverse natural products, and one of the
best-studied myxobacterial products is the siderophore myxochelin. Herein, we report two …

Alkaloids, as a natural acetylcholinesterase (AChE) inhibitor, have become a research
hotspot in the treatment of Alzheimer's disease (AD) and the most active field in the research …

Three unique monoterpenoid indole alkaloids, raufiayunesins AC (1–3) were obtained from
the leaves of Rauvolfia yunnanensis. 1 and 2 were the rare spiro monoterpenoid indole …

Tabernaecorymine A, an 18-normonoterpenoid indole alkaloid with conjugated (E)-3-
aminoacrylaldehyde fragment was obtained from the stem bark of Tabernaemontana …

The phytochemical investigation of the stem barks of Voacanga africana resulted in the
isolation of fifteen known monoterpenoid indole alkaloids (1–15). The structures of the …

Catharanthus roseus is a well-known traditional herbal medicine for the treatment of cancer,
hypertension, scald, and sore in China. Phytochemical investigation on the twigs and leaves …

Two undescribed bisindole alkaloids, gelseginedine A (1) and its rearranged gelseginedine
B (2), and seven unreported gelselegine-type oxindole alkaloids (3–9) were isolated from …