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. Previous studies on the Esenbeckia alata and Raputia heptaphylla, both species belonging to the Rutaceae family, have shown important results with respect to their chemistry. These species have secondary metabolites (coumarins and alkaloids mainly), which act as chemotaxonomic markers. This paper presents, for the first time, the phytochemical work and isolated metabolites in these species: four coumarins: bergapten, xanthyletin, xanthotoxin, 3-isoprenyl-4-methoxy-coumarin; four alkaloids: skinmianine, kokusaginine, dictamnine, and 1-methyl-2- methoxy-4-quinolone; two lignans: sesamin and mesodihydroguaiaretic acid; two sterols: -sitosterol, stigmasterol; and a pentacyclic triterpene: lupeol that have been isolated from leaves of E. alata. Five alkaloids 7-methoxy-2,2-dimethyl-2,6-dihidro-piran[3,2,c] quinolin-5-one, flindersiamine, skinmianine, kokusaginine and dictamnine that have been isolated from leaves of R. heptaphylla. Moreover, it presents a new method by obtaining quinolone alkaloid analogue precursors trough the condensations of Mannich adduct vinylogous and aldehydes followed by radical cyclization to obtain products with high regio- and stereoselectivity.

Metabolitos aislados de raputia heptaphylla y esenbeckia alata (rutaceae) y síntesis de precursores de análogos de alcaloides quinolínicos