The structures of ferocaulin,ferocaulinin, ferocaulidin,and ferocaulicin

Summary From the roots ofFerula conocaula Korov. four new terpenoid coumarins have been isolated: ferocaulin (I), ferocaulinin (II), ferocaulidin (III), and ferocaulicin (IV).On the basis of chemical reactions and spectral characteristics, and also conversion into conferdione, the structures and relative configurations (Ia-IVa) have been established for them.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 322–327, May–June, 1978.