Tidak. Heterosiklik Contoh

1.

Pirol dan pyrrolidineHygrine, Stachydrine

2.

Pyrrolizidine

Senecionine, Symphitine, Echimidine, Seneciphylline

3.

Piridin dan PiperidinaLobeline, Nikotin, Piperine, Conine, trigonelina

4.

Tropane (piperidin / N-metil-pyrrolidine)

Kokain, Atropin, Hyoscyamine, hyoscine

5.

Quinoline

Kina, Kinidina, sinkonin, Cinchonidine

6.

Isoquinoline

Morfin, Emetine, papaverine, Narcotine, Tubocurarine, Kodein

7.

Aporphine (dikurangi isoquinoline / naftalena)

Boldin

8. Quinolizidine Lupanine, Cytisine, Laburnine, Sparteine

9.

Indole atau Benzopyrole

Ergometrine, Vinblastine, Vincristine, Strychnine, Brucine, Ergotamin, Yohimbine, reserpin, Serpentine, physostigmine

10.

Indolizidine

Castanospermine, Swainsonine

11.

Imidazole atau glyoxaline

Pilocarpine, Pilosine

12. Purin (pirimidin / imidazol)

Kafein, Theobromine

13.Steroid (beberapa digabungkan sebagai glikosida) *

Conessine, Solanidine

14. Terpenoid *

Aconitine, lycaconitine, Aconine