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几乎所有具有生理活性的天然产物在其分子中都是含有不对称碳原子的。一般说来,这些具有生理活性的天然产物,它们的结构一经解决以后,人们就可从事于这些化合物的合成,不过要在这些化合物的绝对构型确定以后,才能真正地合成出和天然产物完全相同的物质。如果合成物与天然物的绝对构型不同,则合成物往往会失去或减低应有的生理活性。一个具有旋光活性的天然产物,如果它的绝对构型尚未解决,就不能说它的结构已经完全确定。本篇所述有旋光活性的
Almost all of the physiologically active natural products contain asymmetric carbon atoms in their molecules. In general, these physiologically active natural products, once their structures have been resolved, can be synthesized by these compounds, but only after the absolute configuration of these compounds has been established, Same material If the absolute configuration of the composition and the natural different, the composition will often lose or reduce the physiological activity should be. An optically active natural product, its absolute configuration can not be said that its structure has been completely determined if its absolute configuration has not been resolved. This article describes the optically active