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在继续寻找具有生物活性的内酯时,作者研究了金光菊属植物R.mollis Ell.的化学成分。从其地上部分分得新的倍半萜内酯rudmollin(2a)、4-乙酰氧基rudmolfin(2b)、15-乙酰氧基rudmollin(2c)和rudmollitrin(4b)。
While continuing to search for bioactive lactones, the authors studied the chemical composition of R. mollis Ell. of the genus Rudbeckia. The sesquiterpene lactones rudmollin (2a), 4-acetoxyrudmolfin (2b), 15-acetoxyrudmollin (2c) and rudmollitrin (4b) were assigned from their aerial parts.