Page 21 - Phytochemistry 2 (06-PG 605)

III- Nitrogen in heterocyclic ring:

NN Name of Structure Examples
Nucleus

Pyrrolidine N Hygrine
H

Pyridine N Nicotine
Anabasine
Pyridine / N
Pyrrolidine NH

NNaumcleeusof Structure Examples
Nucleus
N Piperine,
Piperidine R Lobeline,
Coniine,
NO Pelletierine
NCH3

Name of Structure Examples
Nucleus
N Cinchona alks.:
Quinoline Quinine, Quinidine,
N
Isoquinoline Cinchonine,
Cinchonidine.
Imidazole Emetine, Cephaline,
Narcotine, Narceine,

Papaverine,
Tubocurarine.

N

N
H

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