Repeated chromatography of Fr. G1A on a silica gel column and elution with a gradient system of P. E.-acetone (100:1–100:10) afforded 3 (3.2 mg), 5 (3.6 mg), and 14 (5.1 mg). 
Fr. H (5.3 g) was loaded onto a Sephadex LH-20 column and eluted with CHCl3–MeOH (1:1) to yield three fractions (Fr. H1-Fr. H3). 
Compound 31 (3.3 mg) was isolated from Fr. H1 by repeated silica gel open CC and eluted with P. E.-acetone (100:50).