Pharmacotherapeutic Potential of Natural Products in Neurological Disorders by Amritpal Singh Saroya & Jaswinder Singh

Author:Amritpal Singh Saroya & Jaswinder Singh
Language: eng
Format: epub
Publisher: Springer Singapore, Singapore

Fig. 7.2The structure of kavain

Fig. 7.3The structure of dihydrokavain

Fig. 7.4The structure of methysticin

Fig. 7.5The structure of dihydromethysticin

Fig. 7.6The structure of yangonin

Fig. 7.7The structure of desmethoxyyangonin

7.3.2 Piperidine Alkaloids

Pipermethystine is present in the aerial parts. It is toxic in nature. Kava root preparations prepared in a correct way are devoid of this alkaloid. However, false-positive alkaloid reactions were obtained with extracts of P. methysticum (Furgiele et al. 1962). 3alpha, 4alpha-epoxy-5beta-pipermethystine and awaine have been reported (Dragull et al. 2003) (Fig. 7.8).

Fig. 7.8The structure of pipermethystine

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