title: Four Novel Taxane Diterpenoids from the Needles of Japanese Yew, Taxus cuspidata.
abstract: Four novel taxane diterpenes were isolated from the needles of the Japanese yew, Taxus cuspidata. Their structures were established as 1-hydroxy taxuspine C, 2α,7β,9α, 10β,13α-pentaacetoxy-5α-cinnamoyloxy-4β,20-epoxy- taxa-11-en-1β-ol, 2α,9α,10β,13α-tetraacetoxy-taxa-4(20), 11-dien-5α-ol and 10-deacetyl taxinine on the basis of spectral analyses.
authors.affiliation: a Laboratory of Applied Bioorganic Chemistry, Division of Life Science, Graduate School of Agricultural Science, Tohoku University.
authors.forename: Q W
authors.initials: QW
authors.lastname: Shi
authors.affiliation: a Laboratory of Applied Bioorganic Chemistry, Division of Life Science, Graduate School of Agricultural Science, Tohoku University.
authors.forename: T
authors.initials: T
authors.lastname: Oritani
authors.affiliation: a Laboratory of Applied Bioorganic Chemistry, Division of Life Science, Graduate School of Agricultural Science, Tohoku University.
authors.forename: T
authors.initials: T
authors.lastname: Horiguchi
authors.affiliation: a Laboratory of Applied Bioorganic Chemistry, Division of Life Science, Graduate School of Agricultural Science, Tohoku University.
authors.forename: T
authors.initials: T
authors.lastname: Sugiyama
authors.affiliation: a Laboratory of Applied Bioorganic Chemistry, Division of Life Science, Graduate School of Agricultural Science, Tohoku University.
authors.forename: R
authors.initials: R
authors.lastname: Murakami
authors.affiliation: a Laboratory of Applied Bioorganic Chemistry, Division of Life Science, Graduate School of Agricultural Science, Tohoku University.
authors.forename: T
authors.initials: T
authors.lastname: Yamada
keywords: Taxaceae; Taxus cuspidata; needles; taxoid diterpenes