英文名称
3-[[5-[(1,5-dimethoxy-3-methoxycarbonyl-1,5-dioxopentan-2-yl)oxymethyl]-1,4a-dimethyl-6-methylidene-3,4,5,7,8,8a-hexahydro-2H-naphthalen-1-yl]methoxycarbonyl]-4-[[5-(hydroxymethyl)-5,8a-dimethyl-2-methylidene-3,4,4a,6,7,8-hexahydro-1H-naphthalen-1-yl]methoxy]-5-methoxy-5-oxopentanoic acid