Abstract Five matrine-type alkaloids (1‒5) including two new compounds (1 and 3) and a
new natural product (2) were isolated from the roots of Sophora tonkinesis. Their structures …

Three new matrine‐type alkaloids, 8β‐hydroxyoxysophoridine (1), 9β‐hydroxysophoridine
(2), 9β‐hydroxyisosophocarpine (3), together with one known analog, 11, 12 …

A phytochemical investigation on the alkaloid fractions of Sophora alopecuroides L. led to
the production of 11 undescribed matrine-type alkaloids, sophaloseedlines I–S (1− 11), 12 …

A new β-carboline alkaloid (1) and two new matrine-type alkaloids (2 and 3), together with
two known alkaloids (4 and 5), were isolated from the roots of Sophora tonkinensi s. The …

A phytochemical investigation on the alkaloids from water-soluble part of Sophora
alopecuroides led to obtain forty matrine-type alkaloids (1–40) including eighteen new ones …

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 …

Five new matrine-type alkaloid dimers, alopecuroides A–E, were isolated from the aerial
parts of Sophora alopecuroides. Alopecuroides A and B represent the first dimeric matrine …

Although the quinolizidine alkaloids and flavonoids, the main active components of the
traditional Chinese medicine Sophora flavescens, have been largely investigated, a new …

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

Two new quinolizidine-based alkaloids (2 and 12), along with ten known ones (1, 3–11)
were isolated from the roots of S. tonkinensis. Their structures were determined by …