Chemical structures of the four compounds, astragaloside IV (AGS-IV), 6-O-β-D-glucopyranosyl cycloastragenol (6-O-β-D-glu CAG), 3-O-β-D-xylopyranosyl cycloastragenol (3-O-β-D-xyl CAG), cycloastragenol (CAG).

Chemical structures of the four compounds, astragaloside IV (AGS-IV), 6-O-β-D-glucopyranosyl cycloastragenol (6-O-β-D-glu CAG), 3-O-β-D-xylopyranosyl cycloastragenol (3-O-β-D-xyl CAG), cycloastragenol (CAG).