helioxanthin 8-1, an analogue of helioxanthin (ach126447), is an inhibitor of hbv and hiv virus with ec50 values of 0.03 μm and 2.7 μm, respectively [1].helioxanthin 8-1 is the cyclic hydrazide derivative of helioxanthin and has shown significant in vitro antivirus activity with ec50 values of 0.03 μm and 2.7 μm for hbv and hiv, respectively [1]. in the ds-tet5 cells, helioxanthin 8-1 can inhibit duck hepatitis b virus (dhbv) dna synthesis with a mean ic50 value of 0.25±0.05 μm. besides, in induced cells and non-induced ds-tet5 cells, helioxanthin 8-1 has cytotoxic effect with cc50 values of 18±2 μm and 45±3 μm, respectively, by using an mtt assay [2].
[1] yeo h1, li y, fu l, zhu jl, gullen ea, dutschman ge, lee y, chung r, huang es, austin dj, cheng yc. synthesis and antiviral activity of helioxanthin analogues. j med chem. 2005 jan 27;48(2):534-46.
[2] ying c1, tan s, cheng yc. helioxanthin analogue 8-1 inhibits duck hepatitis b virus replication in cell culture. antivir chem chemother. 2010;21(2):97-103.
