Three previously undescribed azepino-indole alkaloids, named purpurascenines A–C (1–3),
together with the new-to-nature 7-hydroxytryptophan (4) as well as two known compounds …

A 70% ethanol extract of California poppy (Eschscholzia californica) was able to bind to 5-
HT1A and 5-HT7 receptors at 100 μg/mL. The subsequent isolation procedure yielded the …

5-Methoxy-N, N-dimethyltryptamine (1) and N, N-dimethyltryptamine (2) isolated from the
dried, unripe fruit of Evodia rutaecarpa interacted with 5-HT1A receptors with K i values of 28 …

Nine new monoterpenoid indole alkaloids, uncarialins A–I (1–9), were isolated from Uncaria
rhynchophylla as well as 14 known analogues (10–23). Their structures were determined by …

Serotonin receptor (5-HT7) binding assay-directed fractionation of a methanol extract of the
dried roots of Angelica sinensis led to the isolation and identification of 21 compounds …

A receptor binding assay directed separation has led to the identification of a minor alkaloid
6-methoxy-N-methyl-1, 2, 3, 4-tetrahydro-β-carboline (1) from the Chinese herbal drug …

Two new bisindole alkaloids, vingramine (1) and methylvingramine (2), were isolated from
the seeds of Catharanthus roseus, Apocynaceae. The structures were determined by …

Four new bisanthraquinone glycosides, S-(+)-skyrin-6-O-β-glucopyranoside (1), R-(−)-skyrin-
6-O-β-glucopyranoside (2), S-(+)-skyrin-6-O-β-xylopyranoside (3) and S-(+)-skyrin-6-O-β-α …

Abstract (±)-Caryopterisines A (1) and B (2) featuring an unprecedented 6/5/5/5/6
pentacyclic rings system were isolated from Caryopteris glutinosa. The structures were …

Catharoseumine (1), a new monoterpenoid indole alkaloid possessing a unique peroxy
bridge moiety, was isolated from the whole plants of Catharanthus roseus. Its structure was …