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Molecules 2016-Apr

Two New Bioactive α-Pyrones from Hypericum japonicum.

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Povezava se shrani v odložišče
Linzhen Hu
Zhenzhen Wang
Jinwen Zhang
Yuanyuan Lu
Kaiping Wang
Yongbo Xue
Yu Zhang
Yonghui Zhang

Ključne besede

Povzetek

Hypericum japonicum (Guttiferae), a type of annual or perennial herb, has been historically applied to cure infectious hepatitis, acute and chronic hepatitis, gastrointestinal disorder, and internal hemorrhage. In our successive studies on the genus Hypericum, two new α-pyrones termed japopyrones A and B (1 and 2) were isolated from H. japonicum. Their structures and absolute configurations were established by the comprehensive analyses of spectroscopic data, the application of the Single-crystal X-ray diffraction structural analysis, and the experimental electronic circular dichroism (ECD) spectra. Bioactivity screenings suggested that compound 2 possessed the potential inhibition efficacy on lytic replication of Kaposi's sarcoma associated herpesvirus (KSHV) with an IC50 29.46 μM and a selective index of higher than 6.79, respectively.

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