Cytotoxic oxepinochromenone and flavonoids from the flower buds of Rosa rugosa
- J Nat Prod. 2013 Oct 25;76(10):1866-71. doi: 10.1021/np4004068.
- 1. Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan University of Nationalities , Kunming 650031, Yunnan, People's Republic of China.
A new oxepinochromenone, rugosachromenone A (1), seven new Flavonoids, rugosaflavonoids A-G (2-8), and 11 known compounds (9-19) were isolated from the flower buds of Rosa rugosa. Compound 1 is found from Nature for the first time. Compound 2 displayed cytotoxicity against NB4, SHSY5Y, and MCF7 cells with IC50 values of 2.2, 2.5, and 2.3 μM, respectively, and 3 was toxic to A549 and MCF7 cells with IC50 values of 1.2 and 2.8 μM, respectively.