Many naturally occurring nitrogen compounds and many nitrogen-containing drugs are better known by common names than by their systematic names. A few of these follow. Write a structural formula for each one.
(a) trans-2-Phenylcyclopropylamine, better known as tranylcypromine: an antidepressant drug
(b) N-Benzyl-N-methyl-2-propynylamine, better known as pargyline: a drug used to treat high blood pressure
(c) 1-Phenyl-2-propanamine, better known as amphetamine: a stimulant
(d) 1-(m-Hydroxyphenyl)-2-(methylamino)ethanol: better known as phenylephrine: a nasal decongestant