Twelve quinolizidine alkaloids were isolated from Sophora tonkinensis by means of silica
gel, preparative MPLC, and preparative HPLC. On analysis of NMR spectroscopic data, their …

Abstract Three new quinolizidine alkaloids (1− 3), including one new naturally isoflavone
and cytisine polymer (3), along with 6 known ones were isolated from the ethanol extract of …

Seventeen quinolizidine alkaloids, including a new matrine-type one, sophcence A (1), were
isolated from the roots of Sophora flavescens Alt. The structure of compound 1 was …

Objective To study the quinoline alkaloids from the ethanol extract of Scolopendra
subspinipes mutilans (SSM). Methods The chemical constituents were isolated and purified …

Quinolizidine alkaloids, as essential active ingredients extracted from Sophora
alopecuroides Linn, have been well concerned in the past several decades owing to the …

Four new quinolizidine alkaloids, including three matrine-type alkaloids, 8α-
hydroxysophocarpine (1), 13β-hydroxyoxymatrine (2), 9α-acetoxymatrine (3), and one …

A new matrine-type alkaloid, 7α-hydroxysophoramine (1), was isolated from the aerial parts
of Sophora alopecuroides together with eight known alkaloids, 12β-hydroxysophocarpine …

Phytochemical investigation of Sophora secundiflora alkaloid fraction led to isolation of one
new quinolizidine alkaloid (1) 13-methoxyanagyrine together with six known ones (2–7) …

We studied the alkaloid constituents and bioactivity of Sophora flavescens (Leguminosae).
The constituents were isolated with silica gel column chromatography, semi-preparative …

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 …