Fraction VI (0.189 g) was separated by column chromatography over Sephadex LH-20 using MeOH to produce four fractions (1'-4'). Fraction 4' (21.8 mg) was separated by column chromatography over Sephadex LH-20 using MeOH to produce four fractions (1'"-4'"). Fraction III (80 mg) was separated by column chromatography over Sephadex LH-20 using MeOH to produce four fractions (1'-4').