Biosynthesis of oleanene- and ursene-type triterpenes from [4-13C]mevalonolactone and sodium [1,2-13C2]acetate in tissue cultures of Isodon japonicus Hara
Tschesche et. al., Justus Liebigs Annalen der Chemie, 1964, vol. 676, p. 175,187
作者:Tschesche et. al.
DOI:——
日期:——
Delgado, Guillermo; Cardenas, Xochitl; Alvarez, Laura, Journal of Chemical Research, Miniprint, 1986, # 8, p. 2565 - 2579
作者:Delgado, Guillermo、Cardenas, Xochitl、Alvarez, Laura、Vivar, Alfonso Romo de、Pereda-Miranda, Rogelio
DOI:——
日期:——
Triterpene phytoalexins from nectarine fruits
作者:Hassane El Lahlou、Nobuhiro Hirai、Mitsuya Tsuda、Hajime Ohigashi
DOI:10.1016/s0031-9422(99)00316-7
日期:1999.10
Seven triterpenoid phytoalexins were isolated from peel of unripe fruits of nectarine (Prunus persica cv Fantasia) wounded and inoculated with Colletotrichum musae. Two were new triterpenoids, identified as 1 beta,2 alpha,3 alpha,24-tetrahydroxyurs-12-en-28-oic acid and 1 beta,2 alpha,3 alpha,24-tetrahydroxyolean-12-en-28-oic acid. 2 alpha,3 alpha,24-Trihydroxyolean-12-en-28-oic acid, 2 alpha,3 alpha,24-trihydroxyurs-12-en-28-oic acid, 2 alpha,3 beta,24-trihydroxyolean-12-en-28-oic acid, 2 alpha,3 alpha-dihydroxyolean-12-en-28-oic acid, and 2 alpha,3 alpha-dihydroxyurs-12-en-28-oic acid were previously reported as constitutive natural products from other plants, but were never described as phytoalexins. All showed antifungal activity against the fungus mentioned. (C) 1999 Elsevier Science Ltd. All rights reserved.
Terpenoids. XXXI.<sup>1</sup> The Structure and Stereochemistry of Medicagenic Acid<sup>2</sup>
作者:Carl Djerassi、D. B. Thomas、A. L. Livingston、C. Ray Thompson