Table 1.

The retention time and the relative purity of AO fraction F1–F12

Fraction	Preparative HPLC (min)	Analytical HPLC (min)	Relative purity (%)	Fraction	Preparative HPLC (min)	Analytical HPLC (min)	Relative purity (%)
F1	53.9	26.476	98.08	F7	89.4	47.158	99.86
F2	65.6	34.740	99.67	F8	92.9	48.471	99.34
F3	69.7	36.618	97.66	F9	95.8	49.623	99.78
F4	75.1	40.801	98.19	F10	100.0	51.741	–
F5	79.6	43.120	99.39	F11	103.3	52.929	99.16
F6a	83.7	44.076	–	F12	106.5	53.983	99.76
F6b	83.7	45.231	–