© Springer Nature Switzerland AG 2018
A. Böttger et al., Lessons on Caffeine, Cannabis & Co, Learning Materials in Biosciences,
https://doi.org/10.1007/978-3-319-99546-5_12
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Alkaloids
12
12.1
Introduction – 181
12.2
Terpenoid Indole Alkaloids (Derived from Tryptophan,
e.g. Ibogaine, Reserpine, Strychnine, Physostigmine,
Dimethyltryptamine, Psilocybin and Ergotamine) – 181
12.3
Benzylisoquinoline Alkaloids (Derived from 
Tyrosine, e.g. Morphine and Curare) – 186
12.4
Phenethylamine Alkaloids (Derived from 
Tyrosine, e.g. Mescaline) – 189
12.5
Phenylethylamine (Derived from Phenylalanine,
e.g. Ephedrine) – 189
12.6
Alkaloids from Condensation of Tyrosine
and Phenylalanine – 190
12.6.1 Amaryllidaceae (Norbelladine) – 190
12.6.2 Phenylethylisoquinoline Alkaloids – 191
12.7
Pyridine Alkaloids (e.g. Nicotine), Pyrrolidine
Alkaloids (e.g. Hygrine) and Tropane Alkaloids
(e.g. Atropine, Scopolamine and Cocaine)
All Derived from Ornithine and Arginine – 191
12.8
Pyrrolizidine Alkaloids (Derived from 
Spermidine and Putrescine) – 194
12.9
Purine Alkaloids (Derived from Xanthosine,
e.g. Caffeine) – 195
12.10 Piperidine Alkaloids (e.g. Lobeline),
Quinolizidine Alkaloids (e.g. Cytisine) and 
Indolizidine Alkaloids (All Derived from Lysine) – 196