Anthraquinones and other constituents from the roots of Hemerocallis fulva L. var. sempervirona M. Hotta

Four anthraquinone derivatives were isolated from n-hexane- and chloroform-soluble fractions in a methanol extract from the roots of Hemerocallis fulva L. var. sempervirona M. Hotta, in addition to aliphatic hydrocarbons, fatty acid methyl esters, and phytosterols. The anthraquinone derivatives were identified as chrysophanol (1), kwanzoquinone B (2), obtusifolin (3), and aloe-emodin(4), respectively, by spectroscopic methods. It is found that the aliphatic hydrocarbons, the fatty acid methyl esters, and the phytosterols, were mainly composed of pentacosane, methyl parmitate, and stigmasterol, respectively, on the basis of these GC/MS analyses