This seemed to be popular last time.
As with the structures shown previously, you are unlikely to have to draw these in the exam. Some of them, you wouldn’t be expected recognise. If you don’t recognise the molecule, have a look at its structure and see what clues that gives you to its function. Several of the molecules are related to each other. All of these molecules are, or have been, used in anaesthetic practice.
I have included a couple of historic interest