作者:Cátia Ramalhete、Dinora Lopes、Joseph Molnár、Silva Mulhovo、Virgílio E. Rosário、Maria-José U. Ferreira
DOI:10.1016/j.bmc.2010.11.015
日期:2011.1
with different alkanoyl, aroyl and cinnamoyl chlorides/anydrides, yielding ten new mono or diesters, karavoates F (7) and H-P (8–16). Furthermore, the new compound cucurbalsaminol C (17) was isolated from the same plant. Their structures were assigned by spectroscopic methods, including 2D NMR experiments. Compounds 1 and 17 and the acyl derivatives 8–16 along with other five esters (2–6, karavoates A–E)