Heterozyklen

Pyrrol

Imidazol

Pyrazol

Triazol

Tetrazol

Furan

Thiophen

Oxazol

Isoxazol

Thiazol

Isothiazol

Pyrrolidin

Tetrahydrofuran

Tetrahydrothiophen

Pyridin

Pyrimidin

Pyrazin

Pyridazin

Triazin

Piperidin

Piperazin

Tetrahydropyran

Dioxan

Thian

Morpholin

Indol

Benzimidazol

Purin

Benzofuran

Benzthiophen

Chinolin

Isochinolin

Chinazolin

Thienopiperidin

Triazolpyrimidin

Triazolpyrimidin

Morpholinon

beta-Lacton

gamma-Lacton

delta-Lacton

Omega-Lacton

Imidazopyridin

Pyrazolopyrimidin

Pyrazolinone = Pyrazolone

Isobenzofuran

Thioxanthen

Phenothiazin

Xanthin

Pyrimidindion

Benzothiophen

Penam

Penem

Carbapenem

Cefem

Monobactam

Hydantoin

Benzodioxan

Carbazol

Benzoxadiazol

Indan

Cumarin

Hydantoin

Methylaminopyrazol