Anti-HIV Tigliane Diterpenoids from Wikstroemia scytophylla.
During a chemical investigation of Wikstroemia scytophylla, three new [wikstrocins A-C (1-3)] and three known tigliane diterpenoids (4-6) were isolated. The structures of the new compounds were elucidated from extensive physiochemical and spectroscopic analysis. The correlations between the ECD Cotton effects and B ring structures of tiglianes were also evaluated. The isolated compounds were assessed for their anti-HIV activity against HIV-1 infection of MT4 cells, and two compounds (4 and 6) showed potent anti-HIV activity with IC50 values of 3.8 and 12.8 nM, respectively.
Otsuki, K; Zhang, M; Yamamoto, A; Tsuji, M; Tejima, M; Bai, Z-S; Zhou, D; Huang, L; Chen, C-H; Lee, K-H; Li, N; Li, W; Koike, K
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