Dantaxusins A and B, two new taxoids from Taxus yunnanensis

Citation
Y. Shinozaki et al., Dantaxusins A and B, two new taxoids from Taxus yunnanensis, J NAT PROD, 64(8), 2001, pp. 1073-1076
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Agricultural Chemistry","Pharmacology & Toxicology
Journal title
JOURNAL OF NATURAL PRODUCTS
ISSN journal
0163-3864 → ACNP
Volume
64
Issue
8
Year of publication
2001
Pages
1073 - 1076
Database
ISI
SICI code
0163-3864(200108)64:8<1073:DAABTN>2.0.ZU;2-O
Abstract
Two new taxane diterpenes, dantaxusin A [5 alpha -cinnamoyloxy-2 alpha ,7 b eta ,13 alpha -triacetoxy-2(3 --> 20)abeo-taxa4(20),11-diene-9,10-dione (1) ] and dantaxusin B [5 alpha -cinnamoyloxy-9 alpha -hydroxy-10 beta ,13 alph a -diacetoxytaxa-4(20),11-diene (2)], were isolated from an ethanol extract of the aerial parts of Taxus yunnanensis along with taxuspine B, 2-deaceto xytaxinine J, taxuyunnanine C, taxinine B, taxuspine C, and taxinine NN-4. The structures of 1 and 2 were established on the basis of 1D and 2D NMR an d HRMS spectroscopic methods.