Structure, conformation and absolute configuration of novel bisnorsesquiterpenes from the Adesmia boronioides essential oil
作者:Silvia B González、Arnaldo L Bandoni、Catalina van Baren、Paola Di Leo Lira、Carlos M Cerda-Garcı́a-Rojas、Pedro Joseph-Nathan
DOI:10.1016/s0040-4020(02)00191-6
日期:2002.4
from the essential oil of Adesmia boronioides. Their structures and relative stereochemistry were elucidated by 1D and 2D NMR data, including carbon–carbon connectivity and NOESY experiments. The absoluteconfiguration was determined by chemical conversion of 1 into phenol 6, whose Cotton effect was compared with that of cacalol. The conformational behavior of the new compounds containing the hydrindane