Pollenopyrroside A and B, novel pyrrole ketohexoside derivatives from bee-collected Brassica campestris pollen.
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.
Guo
Juan-Li
JL
Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine (Ministry of Education), Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Feng
Zi-Ming
ZM
Yang
Ya-Jun
YJ
Zhang
Zhi-Wu
ZW
Zhang
Pei-Cheng
PC
D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity; D001516:Bees; D001937:Brassica / Q000737:chemistry*; D045744:Cell Line, Tumor; D018360:Crystallography, X-Ray; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D011058:Pollen / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity
D000972:Antineoplastic Agents, Phytogenic; D011758:Pyrroles; C552657:pollenopyrroside A; C552658:pollenopyrroside B