Provide an example of a γ-keto nitrile.

Structure of a gamma-keto nitrile with a carbonyl and nitrile group.

Another representation of a gamma-keto nitrile with a carbonyl and nitrile group.

Illustration of a gamma-keto nitrile featuring a carbonyl and nitrile functional groups.

Diagram of a gamma-keto nitrile showing the carbonyl and nitrile groups.