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Breaking mirror images for patients' good luck

Given the precision of chemical synthesis processes, small-molecule drugs can be a surprisingly mixed bag of molecules.

If a molecule has a chiral center, synthesis will give a mixture of two molecules that have the identical chemical composition but are mirror images of each other. Technically speaking, they are enantiomers. In the macrobiological world, a person's left and right hand are enantiomers of each other.



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