Recall that enantiomers are molecules which are nonsuperimposable mirror images. Draw a pair of diastereomers. Any pair of diastereomers is acceptable. Recall that diastereomers are stereoisomers which are not enantiomers. Draw a meso compound.
Any meso compound is acceptable.
Reacll that a meso compound is a molecule bearing at least one stereocenter, but is achiral. A racemate is a mixture of enantiomers. One enantiomer may have the desired drug properties, while the other may have harmful properties. Circle and label the least stable chair conformation, and briefly explain your choice. Draw the structure of a substituted cyclohexane that would be in a single chair conformation essentially all of the time.