What is a bioisosterism?

Answer 1

A bioisosterism is a relationship between bioisosteres, substituents or groups with similar physical or chemical properties that impart similar biological properties to a chemical compound.

Answer 2

Bioisosterism is a process in drug design where one functional group or atom is substituted with another to maintain the desired pharmacological properties of a drug. The goal is to improve drug potency, selectivity, or pharmacokinetic properties while minimizing unwanted side effects. Bioisosteres are structurally similar but not identical compounds that can mimic the original pharmacophore.

Answer 3

A bioisostere is a compound derived from another by the replacement of a group of atoms by another broadly similar group, for example, the replacement of a methyl by an ethyl group.