From the lichen Umbilicaria calvescens Nyl., was made the isolation of the major lichen compounds: usnic acid and lecanoric acid. Isolation of lichen compounds was performed by column chromatography (CC) and thin layer chromatography (CCF) of the extracts made in acetone and hexane. Yellow crystals were obtained from the n-hexane extract, while a white solid was obtained from the acetone extract. The crystals obtained were identified by their physical characteristics and by the UV, IR, MS, 1 H-NMR and 13C-NMR spectra.

From the apolar extract of the roots of garlic Sacha Mansoa alliacea collected in the Botanical garden of Center of Rehabilitation of addictions and research of traditional medicines – Takiwasi (Tarapoto, San Martin region, in the Peruvian Amazon) identified stigmasterol (90,36 %) and γ-sitosterol (8,76 %) as their main sterols, wich were analyzed by gas chromatography and identified by their mass spectra. In addition, was the qualitative analisys of the secondary metabolites.