Moreover, if there are lots of chiral centres in a molecule, and each matters, the yield of the version with the right combination can be minuscule.
此外，如果一个分子有很多的手性中心，每一个都能起作用，那么所需分子结构的产量就会很少。
This paper is to study progress on molecule recognition of ion, macromolecule, chiral molecule and applications in some field by the use of supramolecular porphyrins.
综述了超分子卟啉化合物对离子、大分子、手性分子的识别的研究进展及其在一些领域的应用。
Carbohydrate, with multi-functional groups and chiral centers in one small molecule, is inexpensive and can be converted into efficient chiral auxiliary for controlling asymmetric synthesis.
糖作为一类具有多官能团、多手性中心、廉价易得的手性小分子可以很方便地作为手性助剂用于不对称合成。
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