| Literature DB >> 15280004 |
Alex Haroldo Jeller1, Dulce Helena Siqueira Silva, Luciano Morais Lião, Vanderlan da Silva Bolzani, Maysa Furlan.
Abstract
The triterpenes, 22beta-hydroxypristimerin and cognatine, were isolated together with the known compounds pristimerin, maytenin, 20alpha-hydroxymaytenin, 22beta-hydroxymaytenin, netzahualcoyol, netzahualcoyondiol and netzahualcoyone from root bark of Cheiloclinium cognatum. The structures of the isolated compounds were elucidated by interpretation of their spectral data, including gHMQC and gHMBC experiments. The isolates were investigated for their radical scavenging abilities through a spectrophotometric assay involving reduction of 2,2-diphenyl-picryl hydrazyl (DPPH).Entities:
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Year: 2004 PMID： 15280004 DOI： 10.1016/j.phytochem.2004.03.039
Source DB: PubMed Journal: Phytochemistry ISSN： 0031-9422 Impact factor: 4.072