(4R,5R)-dimethyl 2-(((R,Z)-4-(1-bromoethylidene)-5-oxotetrahydrofuran-3-yl)methyl)-1,3-dioxolane-4,5-dicarboxylate

英文名：(4R,5R)-dimethyl 2-(((R,Z)-4-(1-bromoethylidene)-5-oxotetrahydrofuran-3-yl)methyl)-1,3-dioxolane-4,5-dicarboxylate