[Studies on the chemical constituents from the roots of Tinospora sagittata var. yunnanensis (II)].

OBJECTIVE: To study the chemical constituents from the roots of Tinospora sagittata var. yunnanensis. METHODS: Various chromatographic techniques were used to isolate and purify the constituents. The structures of these compounds were elucidated on the basis of spectral analysis. RESULTS: Seven compounds were isolated from the plant and their structures were identified as tinophylloloside (1), epitinophylloloside (2), 2-deoxycrustecdysone (3), polypodine B (4) , (+)-5'-methoxyisolariciresinol 3alpha-O-beta-D-glucopyranoside (5), geniposide (6), adenine (7). CONCLUSION: All compounds are isolated from the plant for the first time,and compounds 4, 5, 6 and 7 are isolated firstly from the genus.