Two new diterpenoids from the roots of Pygmacopremna herbacea

Phytochemistry Letters 12 (2015) 129–132

Two new diterpenoids, neobharangi-d-lactone (1) and bharangi quinone (2) along with two known compounds neobharangin (3) and bharangin (4) were isolated from the ethyl acetate extract of root nodules of Pygmacopremna herbacea. The structures of the new compounds were established by 1D and 2D NMR spectroscopic data.
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