Six unusual matrine-type alkaloid dimers, flavesines A–F (1–6, respectively), together with
three proposed biosynthetic intermediates (7–9) were isolated from the roots of Sophora …

Eight new matrine-type alkaloids, flavesines G–J (1–4), alopecurine B (5), 7, 11-dehydro-
oxymatrine (6), 10-oxy-5, 6-dehydromatrine (7), and 10-oxysophoridine (8), along with nine …

Four novel matrine-based alkaloids (1–4) were isolated from the seeds of Sophora
alopecuroides. Compounds 1 and 2 possess unprecedented 6/6/6/4 and 6/5/6/6 ring …

Main observation and conclusion Sophaloseedlines A—G (1—7), seven new matrine‐based
alkaloids along with two known analogues, were isolated from the seeds of Sophora …

Five novel quinolizidine-based alkaloids (1–5) were obtained from the seeds of Sophora
alopecuroides L. Compounds 1 and 2 are the first examples of sparteine-indolizine and …

Three new matrine-type alkaloids,(+)-5α-hydroxyoxysophocarpine (1),(−)-12β-
hydroxyoxysophocarpine (2), and (+)-5α-hydroxylemannine (3), along with 14 known …

(+)-12α-Hydroxysophocarpine (8), a new quinolizidine alkaloid was isolated from the roots
of Sophora flavescens, together with 10 known quinolizidine alkaloids,(+)-oxymatrine (1),(+) …

A new matrine-type alkaloid,(-)-14β-hydroxyoxymatrine (1), was isolated from the roots and
rhizomes of Sophora tonkinensis Gapnep.(Leguminosae), together with five known matrine …

Sophoralines A–C, three novel [2+ 2] cycloaddition dimers of matrine-based alkaloids with
an unprecedented 6/6/6/6/4/6/6/6/6 nonacyclic skeleton containing 11 stereogenic centers …

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 …