Isoquinoline alkaloids are natural products of the group of alkaloids, which are chemically derived from isoquinoline. They form the largest group among the alkaloids.[1]
Isoquinoline alkaloids can be further classified based on their different chemical basic structures. The most common structural types are the benzylisoquinolines and the aporphines.[2] According to current knowledge, a total of about 2500 isoquinoline alkaloids are known nowadays, which are mainly formed by plants.[3]
^Bettina Ruff: Chemische und biochemische Methoden zur stereoselektiven Synthese von komplexen Naturstoffen. Verlag Logos, Berlin 2012, ISBN978-3-8325-3121-8, S. 8. ([1], p. 8, at Google Books)
^Jennifer M. Finefield, David H. Sherman, Martin Kreitman, Robert M. Williams: Enantiomere Naturstoffe: Vorkommen und Biogenese. In: Angewandte Chemie. Wiley-VCH, Weinheim 2012, doi:10.1002/ange.201107204, S. 4905–4915.