The Constituents of Valerian Root. The Structures of Four New Iridoid Glycosides, Kanokoside A, B, C, and D from the Root of "Hokkaikisso"

Abstract

Four new iridoid glycosides, kanokoside A, B, C and D have been isolated from valerian root cultivated in Hokkaido area under the name of "Hokkaikisso". From chemical and spectral evidence, their structures have been elucidated to be I, II, III and IV, respectively.