Oladele Oladimeji Abdulkabir, Adebayo Oladosu Ibrahim, Shaiq Ali Muhammad, Lateef Mehreen
a Natural Products Chemistry Laboratory, Industrial Chemistry Unit , Department of Chemical Sciences , Ondo State University of Science and Technology , Okitipupa , Nigeria.
b Organic Chemistry Unit, Department of Chemistry , University of Ibadan , Ibadan , Nigeria.
Nat Prod Res. 2018 Sep;32(17):2017-2024. doi: 10.1080/14786419.2017.1361949. Epub 2017 Aug 7.
Dioclins A (1) and B (2), the new flavonoids, have been isolated from the ethyl acetate soluble fraction of the roots of Dioclea reflexa along with 3,5-dihydroxy-4 methoxybenzoic acid (3), lupeol (4) and the rare dipeptide, auratiamide acetate (5). Their structures have been elucidated by spectroscopic techniques. The compounds 1 and 2 showed a significant antioxidant activity in DPPH radical scavenging assay.
从反折羊蹄甲根的乙酸乙酯可溶部分中分离出了新黄酮类化合物迪奥克林A(1)和B(2),同时还分离出了3,5 - 二羟基 - 4 - 甲氧基苯甲酸(3)、羽扇豆醇(4)和罕见的二肽乙酸奥拉酰胺(5)。它们的结构已通过光谱技术得以阐明。化合物1和2在DPPH自由基清除试验中表现出显著的抗氧化活性。