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绪言。在以前发表的文章中[1]，我们已经报道过肉放蓉甙的实际构型，在C8甲基上有R-构型。我们又继续进行从草众蓉中分离环烯酸忒的工作。现在分离出的新的环烯酸忒，命名为草苁蓉甙（2）和肉苁蓉甙（1）。本文描述了草发蓉甙的结构。结果和讨论。将新鲜的完整的草林蓉（Boschn
introduction. In a previously published article [1], we have reported the actual configuration of R. argentinus with an R-configuration on the C8 methyl group. We continue to work on the separation of cyclic sulfonium oxalates from Grass Zhongrong. The new ceric yttrium oxalates that are now isolated are designated as C. terrestris (2) and Cistanche (1). This article describes the structure of the grasshopper. Results and discussion. Will be fresh and full of hibiscus (Boschn