RT info:eu-repo/semantics/article T1 An unprecedented chlorine-containing piperamide from Piper pseudoarboreum as potential leishmanicidal agent A1 Flores, Ninoska A1 Ticona, Juan C. A1 Bilbao Ramos, Pablo A1 Dea Ayuela, M. Auxiliadora A1 Ruiz Macedo, Juan C. A1 López Bazzocchi, Isabel A1 Bolás Fernández, Francisco A1 Jiménez Díaz, Ignacio Antonio K1 Piper pseudoarboreum K1 Chlorinated-piperamide K1 Biosynthetic pathway K1 Leishmanicidal AB A phytochemical investigation of the ethanolic extract of leaves from Piper pseudoarboreum led to the isolation of3-chlorosintenpyridone 1, an unprecedented chlorinated piperamide, together with the known compounds 2–12.Their structures were established based on 1D and 2D (COSY, ROESY, HMQC, and HMBC) NMR spectroscopy, inaddition to high resolution mass spectrometry. The proposed biosynthetic pathway of compound 1 is discussed.Compounds 1–12 were tested in vitro for their leishmanicidal potential against promastigote stages of Leishmaniaamazonensis, L braziliensis, L. guyanensis and L. infantum. Two compounds from this series, the alkamide 1 (IC503.4–5.2 μM) and the fatty acid 9 (IC50 18.7–29.6 μM) displayed higher or similar potency to Miltefosine, used asthe reference drug. YR 2019 FD 2019 LK http://riull.ull.es/xmlui/handle/915/36064 UL http://riull.ull.es/xmlui/handle/915/36064 LA en DS Repositorio institucional de la Universidad de La Laguna RD 11-may-2024