Similarly, fractions 3 and 4 were also further resolved (Fr.3.1–3.6, 4.1–4.9) following reversed-phase C18 silica column chromatography, and fraction 3.2 and fraction 3.5 were purified by HPLC to yield compounds 1 (13.8 mg, tR 12.0 min) and 5 (8.0 mg, tR 13.9 min) eluting with 35% and 53% MeOH–H2O, respectively.