-This work describes the conditions for selective extraction of the alkaloids in Andreadoxa flava (Kallunki). The experiments were performed in a pilot plant SFE 500, in the following conditions. Extractor o C in the separators. The samples, extracted from A. flava leaves, were analysed by 1 H NMR and GC/FID as well as by comparison with standards. This procedure allowed the identification for the first time of the 2-quinolone alkaloid 8-methoxy-N-methyl-flindersine in A. flava leaves of the. In addition, zanthophylline, 5-methoxyalmene and 8-methoxyflindersine were identified as the main alkaloids in leaves. Under the best conditions for zanthophylline extraction it was possible to obtain a purity of 79.4% while with other phytochemical technique 55.5% was obtained.
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