L-Gulonolactone (also known as reduced ascorbic acid RAA) is the substrate of the enzyme L-gulono-14-lactone oxidoreductase (EC 1.1.3.8) which catalyzes the last step of the biosynthesis of L-ascorbic acid (vitamin C) in plants and animals.

3-Diethylamino-1-propanol exhibits anticonvulsant effects.

2-Amino-6-cyclopropylamino-9H-purine,the key intermediate of abacavir was synthesized from ethyl cyanoacetate by nitrosation,cyclization with guanidine hydrochloride in the presence of EtONa and reduction to give 2,4,5-triamino-6-hydroxypyrimidine.