Author(s): Zhang JS, Wang XM, Gao YT, Li GP
To study the chemical constituents in Swertia mussotii Franch and their scavenging effects of active oxygens species. A new xanthone named 1,7-dihydroxy-2,3,8-trimethoxyxanthone (1), together with 1,8-dihydroxy-2,6-dimethoxyxanthone (2) and sweroside 2'-O-(3,3',5- trihydroxy-2-biphenylcarboxylate (3), were isolated from Swertia mussotii Franch. Their structures were elucidated by spectroscopic methods, including one and two-dimensional NMR (COSY, HMQC, HMBC and ROESY). Scavenging effects of them on active oxygen species ·OH and O2 – generated by Fenton reaction and riboflavine photosensitization in vitro were investigated by the means of spectrophotometry for the first time and the results showed that three compounds could scavenge active oxygen species efficiently.
Author(s): Yang H, Ding C, Duan Y, Liu J
Author(s): Yang YC
Author(s): Negi JS, Singh P, Rawat B
Author(s): Zhang JS, Wang XM, Dong XH, Yang HY, Li GP
Author(s): Shang J, Zhang GY, Yang CB, Chen Z
Author(s): Brahmachari G, Mondal S, Gangopadhyay A, Gorai D, Mukhopadhyay B, et al.
Author(s): Sun HF, Hu BL, Ding JY, Fan SF
Author(s): Sun HF, Ding JY
Author(s): Louh GN, Lannang AM, Mbazoa CD, Tangmouo JG, Komguem J, et al.
Author(s): Chin YW, Jung HA, Chai H, Keller WJ, Kinghorn AD
Author(s): Fouotsa H, Lannang AM, Mbazoa CD, Rasheed S, Marasini BP, et al.
Author(s): Jantan I, Saputri FC
Author(s): Uvarani C, Chandraprakash K, Sankaran M, Ata A, Mohan PS
Author(s): Luo CT, Mao SS, Liu FL, Yang MX, Chen H, et al.
Author(s): Luo CT, Zheng HH, Mao SS, Yang MX, Luo C, et al.
Author(s): Chow CK, Hong CB
Author(s): Mirvish SS