Subfraction C7-6 (33.7 mg) was purified by PTLC using acetone-hexane (1:20) to obtain a yellow crystal of GD1 (2.6 mg), while the subfraction C7-10 (46.5 mg) was treated in a similar way but, eluted with acetone-CH2Cl2 (1:25) to afford a yellow solid of GD5 (3.2 mg).