Cyclohexane is an organic compound with a chemical formula C6H12. It is a colorless liquid with a pungent odor, insoluble in water, and soluble in most organic solvents such as ethanol, ether, benzene, and acetone. Cyclohexyl fragments are a common structure in both natural and synthetic drugs. It can be used as both core structure and part of achiral side chain.
Phenanthrene is a crystalline tricyclic aromatic hydrocarbon with the molecular formula C14H10. The centers of the three rings of phenanthrene are not in a straight line and are the isomers of anthracene. In medicine, phenanthrene can synthesize alkaloids. Although phenanthrene is considered a relatively small natural product, discovering new phenanthrene derivatives and evaluating their potential biological activity has become of great interest to many research groups worldwide.
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