108349-29-7Relevant academic research and scientific papers
Chemical characterisation of the terpenoid constituents of the Algerian plant Launaea arborescens
Bitam, Fatma,Letizia Ciavatta,Manzo, Emiliano,Dibi, Ammar,Gavagnin, Margherita
experimental part, p. 2984 - 2992 (2009/05/07)
Chemical investigation of endemic Algerian plant Launaea arborescens resulted in the isolation of a series of triterpenes and sesquiterpenes from both the aerial parts and roots. Five terpenoids have been chemically characterised by means of spectral methods mainly NMR techniques. In addition, the absolute stereochemistry at the chiral carbon in the side chain of 8-deoxy-15-(3′-hydroxy-2′-methyl-propanoyl)-lactucin-3′-sulfate (6) has been determined by comparison of the 1H NMR spectra of Mosher derivatives of 6 with those of the corresponding MTPA esters of model compounds.
Application of modified Mosher's method for primary alcohols with a methyl group at C2 position.
Tsuda, Masashi,Toriyabe, Yuki,Endo, Tetsuya,Kobayashi, Jun'ichi
, p. 448 - 451 (2007/10/03)
The absolute configurations of a series of primary alcohols possessing a branched methyl group at C2 position were examined on the basis of a modified Mosher's method proposed by Minale et al. It was revealed that in many cases the absolute configurations
Norterpene Dienes from an Australian Marine Sponge Latrunculia brevis
Butler, Mark S.,Capon, Robert J.
, p. 77 - 85 (2007/10/02)
The norditerpene diene acid (4) and norsesterterpene diene acid (5), along with their corresponding methyl esters (6) and (7), were isolated from an Australian marine sponge, Latrunculia brevis, and their structures determined by detailed spectroscopic analysis, chemical derivatization and degradation.Comment is made on the possible intermediacy of dienes such as (4)-(7) in the biosynthesis of norterpene cyclic peroxides, common to other Latrunculia species from the same locality.
