含有四个碳原子的醛糖，丁糖，有两个手性碳原子；

Aldoses with four carbon atoms, the tetroses, have two chiral carbon atoms;

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它的分子结构中有一手性碳原子，大量研究结果证明其左旋光学异构体的生理活性比右旋异构体要高很多。

There is a chiral carbon atom in the EAMP's molecule and it has been proved that the S-EAMP has higher biological activity than that of the D-EAMP.

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由于在侧链的合成中，有手性碳原子发生了构型翻转，因此我们合成了一个相应的多利培南光学异构体，以利于质量控制。

Due to the configuration inversions of chiral carbon in the synthesis of side chain, we synthesized the corresponding optical isomer of doripenem for quality control.

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这样的碳原子称为手性碳。

Such a carbon is designated as a chiral carbon.

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这样的碳原子称为手性碳。

Such a carbon is designated as a chiral carbon .

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这样的碳原子称为手性碳。

Such a carbon is designated as a chiral carbon .

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