Pentacyclic triterpenes from the fungus, Leptosphaeria maculans
作者:Jagroop S. Dahiya
DOI:10.1016/s0031-9422(00)95208-7
日期:1991.1
Fermented broth of the fungus, Leptosphaeria maculans gave two pentacyclic triterpenoid compounds. Based on spectral analysis these compounds were identified as maculaniol and 3-alpha-hydroxy-urs-18,20-dien-28-oic acid.
Triterpenes of Salacia prinoides DC
作者:B.S. Joshi、V.N. Kamat、N. Viswanathan
DOI:10.1016/s0040-4020(01)83157-4
日期:1973.1
From the root bark of Salacia prinoides DC. (Celastraceae), six closely related triterpenes, P, Q, R, S, T and V have been isolated. These have been shown to be 1,3-diketofriedelane derivatives. The structures of these compounds, 1, 10, 39, 33, 11 and 12, have been established on the basis of spectroscopic as well as degradative evidence.