STRUCTURE AND STEREOCHEMISTRY OF THE COUMARINS OF Ferula lehmannii

Article abstract of DOI:10.1007/BF00575165

Two new 7-hydroxycoumarins have been isolated from the roots of Ferula lehmannii (Lehmann's giant fennel): lehmferidin (I), C24H28O4, M⁺ 380, mp 173-174 deg C, and lehmferin (II), C24H30O4, M⁺ 382, mp 118-119 deg C; and badrakemin (III) has also been identified.The structures and configurations of the asymmetric centers of the new coumarins have been established on the basis of spectral characteristics and conversion into known substances.