异南五味子丁素

2-Butenoic acid,2-methyl-,(6R,7R,8R,14aS)-5,6,7,8-tetrahydro-2,3-dimethoxy-6,7-dimethyl-1-oxo-1H,14H-benzo[1,8]cycloocta[1,2,3-cd][1,3]dioxolo[4,5-g]benzofuran-8-ylester, (2Z)-