Studies of the constituents of scutellaria species. I. The flavonoid glucuronides of "bo ye huang chin", Scutellaria ikonnikovii JUZ.

Seven flavonoid glucuronides (1-7) were isolated from "Bo Ye Hang Chin" ( ?? ?? ?? ?? ), the whole herb of (Scutellaria)___- (ikonnikovii)___- Juz. (Labiatae). A new glucuronyl flavone named ikonnikoside I (1) was formulated as 5, 6, 2'-trihydroxy-7-O-glucuronyl flavone. Other compounds (2-7) were identified as norwogonin-8-O-glucuronide (2), scutellarin (3), 5, 2'-dihydroxy-7-O-glucuronylflavone (4), baicalin (5), norwogonin-7-O-glucuronide (6) and chrysin-7-O-glucuronide (7).

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