Tabernaemontana genus, belonging to the Apocynaceae family, consists of approximately 110 species. Among these, the species under study, Tabernaemontana catharinensis is popularly known in Brazil, as "leitero de vaca". This species is especially rich in indole alkaloids, which are compounds that have promising biological potentials, such as, anticholinesterase and antioxidant activities. The objective of the st...