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Definitions:
Stereogenic Center
An atom in a molecule, often carbon, that is connected to four different groups, giving rise to stereoisomers due to the spatial arrangement of these groups.
Stereoisomer
Molecules that have the same molecular formula and sequence of bonded atoms but differ in the three-dimensional orientations of their atoms in space.
Drug Receptors
Specific molecular sites within the body that drugs interact with to produce a pharmacological effect.
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