title: Two new furan derivatives from bee-collected rape pollen.
abstract: Two new furan derivatives named pollenfurans A (1) and B (2) were isolated from the ethyl acetate extract of bee-collected rape pollen. Their structures were elucidated by spectroscopic analysis. The absolute configurations of the 6,7-diol moiety in both compounds 1 and 2 were confirmed by Snatzke's method, observing the induced circular dichroism after the addition of dimolybdenum tetraacetate in DMSO.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
authors.forename: Juan-Li
authors.initials: JL
authors.lastname: Guo
authors.forename: Ya-Nan
authors.initials: YN
authors.lastname: Yang
authors.forename: Jun
authors.initials: J
authors.lastname: He
authors.forename: Zhi-Wu
authors.initials: ZW
authors.lastname: Zhang
authors.forename: Pei-Cheng
authors.initials: PC
authors.lastname: Zhang
mesh_terms: D000818:Animals; D001516:Bees; D001937:Brassica / Q000737:chemistry*; D002681:China; D002942:Circular Dichroism; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D011058:Pollen / Q000737:chemistry
chemical_list: D005663:Furans; C568243:pollenfuran A; C568244:pollenfuran B