Manipulating insect behavior through the deployment of semiochemicals offers a promising opportunity for protecting crops in a sustainable manner. Therefore, there is still a significant opportunity for the development of natural crop protectants as eco-friendly tools in pest management. In this
A new cytisine-type alkaloid, along with five known alkaloids was obtained from the seeds of Sophora alopecuroides. Their structures were determined to be (-)-N-(2'-hydroxy-3',5'-di-tert-butyl-toluene)-cytisine (1), (-)-lupanine (2), (+)-matrine (3), (+)-sophoramine
To study the chemical constituents in the bark of Sophora japonica.
The chemical constituents were separated and purified by silica gel,Sephadex LH-20 column chromatography,and HPLC. Their structures were identified by various spectroscopic analyses.
Eleven compounds were obtained from the bark 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 elucidated by means of 1D and 2D NMR, as well as HR-ESI-MS spectroscopic data. The NMR data of
The patterns of quinolizidine alkaloids in cell cultures of 10 species of Fabaceae were analyzed by high-resolution GLC and GLC-MS and compared with the alkaloids present in the leaves of the respective plants. Lupanine was produced in all 10 cell suspension cultures as the main alkaloid. It was
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