Chemical compounds

Updated on 5/1/2014.

Most frequent rings in FDA approved drugs

Chemical drawings were obtained using Molconvert of Chemaxon.


Benzene
Cyclohexane
Piperidine
Beta-lactam
(Azetidin-2-one)
Pyridine
Pyrimidine

Cyclohexene
Pyrrole
Imidazole
Thiomorpholine
Oxane
(Tetrahydropyran)
Uracil

1H-pyridin-4-one
1,3-dihydro-1,4-diazepin-2-one
Barbituric acid
1H-pyrimidin-4-one
Piperazine
Dioxolane

Thiazole
Pyrrolidine
1H-pyridin-2-one
1,2,3,6-tetrahydropyridine
Dihydropyrazine
Methylidencyclohexane

Pyrazole
1,4-dihydropyridine
Thiophene
(Thiofuran)
3,4-dihydro-2H-2,4-thiadiazine-11-dione
Gamma-pyrone
4,5-dihydro-1H-imidazole

1,2-oxazole
Furan
Pyrrolidine