Alkaloids of some Mexican Zanthoxylum species

A chlorinated amide and piperidine alkaloids from Aloe sabaea

Alkaloids and other constituents of Zanthoxylum williamsii, Z. monophyllum and Z. fagara

Analysis of aporphine and quinolizidine alkaloids from Caulophyllum thalictroides by densitometry and HPLC

Four compounds, the flavone linarin (1), the triterpene lupenone (2), the tocopherol (vitamin E, 3), and the new natural alkaloid 1,2,3,4-tetrahydro-1,1-dimethyl-6,7-isoquinolindiol (affineine, 4), were the major natural products isolated from Zanthoxylum affine (syn. Zanthoxylum fagara, Rutaceae). Compound 1 is highly abundant in this plant and was isolated as a white precipitate obtained from the acetone and methanol extracts. The structure of these four compounds was established by 1D and 2D NMR spectroscopy including 1H, 13C, DEPT, COSY, HSQC, and HMBC experiments. The hexane, acetone, and methanol extracts, as well as 1, were evaluated for their potential phytotoxic effects in pre- and post-emergent assays, as well as to identify their mechanisms of action. As pre-emergent phytotoxic agents, the hexane, acetone, and methanol extracts inhibited germination and residual growth (root and stem elongation) of Lactuca sativa (lettuce) and Lolium perenne (perennial ryegrass). As post-emergent agents, they i...

https://pubs.acs.org/doi/pdf/10.1021/acsomega.8b02020

Phytotoxic Potential of Zanthoxylum affine and Its Major Compound Linarin as a Possible Natural Herbicide.

Les bases quaternaires de la racine de Zanthoxylum fagara

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Les bases quaternaires de la racine de Zanthoxylum fagara