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.
MeSH terms
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Animals
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Antineoplastic Agents, Phytogenic / chemistry*
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Antineoplastic Agents, Phytogenic / isolation & purification
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Antineoplastic Agents, Phytogenic / toxicity
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Bees
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Brassica / chemistry*
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Cell Line, Tumor
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Crystallography, X-Ray
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Drug Screening Assays, Antitumor
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Humans
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Magnetic Resonance Spectroscopy
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Molecular Conformation
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Pollen / chemistry*
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Pyrroles / chemistry*
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Pyrroles / isolation & purification
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Pyrroles / toxicity
Substances
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Antineoplastic Agents, Phytogenic
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Pyrroles
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pollenopyrroside A
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pollenopyrroside B