Pollenopyrroside A and B, Novel Pyrrole Ketohexoside Derivatives from Bee-Collected Brassica campestris Pollen

Juan-Li Guo; Zi-Ming Feng; Ya-Jun Yang; Zhi-Wu Zhang; Pei-Cheng Zhang

doi:10.1248/cpb.58.983

Notes

Pollenopyrroside A and B, Novel Pyrrole Ketohexoside Derivatives from Bee-Collected Brassica campestris Pollen

Juan-Li Guo, Zi-Ming Feng, Ya-Jun Yang, Zhi-Wu Zhang, Pei-Cheng Zhang

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Keywords: Brassica campestris pollen, pyrrole ketohexoside derivative, pollenopyrroside A, pollenopyrroside B

JOURNAL FREE ACCESS

2010 Volume 58 Issue 7 Pages 983-985

DOI https://doi.org/10.1248/cpb.58.983

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Abstract

Pollenopyrroside A and pollenopyrroside B, novel pyrrole ketohexoside derivatives, were isolated from the extract of Bee-collected Brassica campestris pollen. Their structures were elucidated by spectroscopic analysis (UV, IR, MS, NMR and X-ray) and chemical evidence. Pollenopyrrosides A and B represent a novel carbon skeleton with a six–six and five–six member dioxaspirocycle bearing nitrogen atom, respectively.

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