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Isolation of Alkaloidal Constituents of <i>Zanthoxylum usambarense</i> and <i>Zanthoxylum chalybeum</i> Using Ion-Pair HPLC

Atsushi Kato, Masataka Moriyasu, Momoyo Ichimaru, Yumi Nishiyama, Francis D. Juma, Joseph N. Nganga, Simon G. Mathenge, John O. Ogeto

Journal of Natural Products · 1996 · 51 citations · 4 references

DOI

Concepts

Abstract

Quaternary alkaloids of two Kenyan medicinal plants belonging to the genus Zanthoxylum, Z . usambarense and Z . chalybeum, were examined using ion-pair HPLC. Both plants contained similar alkaloids, but colored protoberberines were found only in Z . chalybeum . From the stems of Z . usambarense a new alkaloid named usambanoline ( 1 ) was isolated and characterized.

References

4

232nd National Meeting of the American Chemical Society

Chemical & Engineering News · 2006 · 60 citations · Full text

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Examination of alkaloidal constituents of <i>zanthoxylum usambarense</i> by a combination of ion‐pair extraction and ion‐pair chromatography using sodium perchlorate

Atsushi Kato, Masataka Moriyasu, Momoyo Ichimaru et al. · Phytochemical Analysis · 1995 · 19 citations

, , +11

The acquisition of alkaloids from plant materials by a combination of ion-pair extraction and preparative ion-pair HPLC using sodium perchlorate.

Masataka Moriyasu, Momoyo Ichimaru, Yumi Nishiyama et al. · BUNSEKI KAGAKU · 1993 · 13 citations · Full text

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Synthesis and evaluation of hypothetical intermediates in the biosynthetic conversion of protoberberine to benzo[c]phenanthridine alkaloids. Evidence for oxidative carbon-nitrogen bond fission followed by intramolecular recyclization in cell cultures of Corydalis incisa

Kinuko Iwasa, M. Kamigauchi, Narao Takao et al. · Journal of the American Chemical Society · 1989 · 11 citations

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