Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Taxuspine"'
Autor:
Daniele Castagnolo, Giorgio Maccari, Stanislava I. Avramova, Maurizio Botta, Gianpietro Sgaragli, Lorenzo Contemori, Annalisa Neri
Publikováno v:
ACS Medicinal Chemistry Letters. 1:416-421
Three simplified "non-natural" natural taxanes, related to taxuspine X, were synthetized and assayed as P-glycoprotein (P-gp) inhibitors. One of them (6) proved to be a very efficient P-gp inhibitor with an IC50 = 7.2 × 10(-6) M. In addition, to rat
Publikováno v:
Phytochemical Analysis. 20:246-252
Introduction The study of taxanes is a hot topic worldwide because of their potential activity against cancer. Analysis of taxanes in extracts of various Taxus species is generally achieved using HPLC. Objective The aim of the current work was to ide
Autor:
Gianluca Giorgi, Marco Radi, Daniela Alderighi, Gianpietro Sgaragli, Stanislava I. Avramova, Elena Galletti, Chiara Ghiron, Federico Corelli, Michela L. Renzulli, Maurizio Botta
Publikováno v:
ChemMedChem. 3(5)
Autor:
Hideyuki Shigemori, Zhe-Sheng Chen, Jun'ichi Kobayashi, Shin-ichi Akiyama, Mikihiko Naito, Takashi Tsuruo, Hirokazu Hosoyama
Publikováno v:
Japanese Journal of Cancer Research : Gann
Some non-taxol-type taxoids having neither an oxetane ring at C-4 and C-5 nor an N-acylphenyl-isoserine group at C-13, such as taxuspine C, 2'-desacetoxyaustrospicatine, and 2-desacetoxytaxinine J, which were isolated from the Japanese yew Taxus cusp
Publikováno v:
Bioscience, Biotechnology, and Biochemistry. 64:894-898
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,9
Three New Bicyclic Taxane Diterpenoids from the Needles of Japanese Yew,Taxus cuspidataSieb. Et Zucc
Publikováno v:
Journal of Asian Natural Products Research. 2:63-70
Three new bicyclic taxane diterpenes were isolated from the needles of the Japanese yew, Taxus cuspidata Sieb. et Zucc. Their structures were established to be 7,9,10,13-tetraacetoxy-5-cinna-moyloxy-4-hydroxy-methyl-8,12,15,15-tetramethyl-bicyclo[9.3
Publikováno v:
Journal of Natural Products. 61:1437-1440
Three novel (1-3) and five known bicyclic 3,8-secotaxane diterpenoids were isolated from the needles of the Chinese yew, Taxus chinensis var. mairei. The structures of the new compounds were established, respectively, as (3E,7E)-2alpha,10beta, 13alph
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :417-422
Selective O-deacylations of taxinine 1a, readily available from needles of Taxus cuspidata, at C-2, C-5 and C-9,10 have been accomplished by treatment with barium hydroxide octahydrate, sodium bis(2-methoxyethoxy)aluminium hydride (Red-Al®) or diiso
Publikováno v:
Natural Product Letters. 10:165-172
One new taxoid, 7-deacetyldecinnamoyltaxuspine B (1), and five known taxoids were isolated using silica gel chromatography from the crude methanolic extract of Taxus X media “Dark Green Spreader”. Their structures, were determined based on extens
Publikováno v:
Tetrahedron Letters. 38:2759-2762
The synthesis of regioisomeric bicyclo[9.3.1]pentadecane-3-one derivatives 1 and 2, interesting synthons for the preparation of novel diterpenoids, has been accomplished through an approach that entails as a key step the formation of a twelve-membere