title: Merrekentrones A-D, ipomeamarone-like furanosesquiterpenes from Merremia kentrocaulos.
abstract: Four new furanosesquiterpenes, merrekentrones A (1), B (2), C (3), and D (4), were isolated from the roots and rootstocks of Merremia kentrocaulos. Their structures were elucidated on the basis of spectroscopic data interpretation. In contrast to ipomeamarone (5), the well-known phytoalexin of Ipomoea batatas, 1-4 seem to be normal plant constituents. Merrekentrone A (1) was also detected in the roots of M. guerrichii and M. aurea.
authors.affiliation: Institut für Pharmazie (Pharmazeutische Biologie), Freie Universität Berlin, Königin-Luise-Strasse 2-4, D-14195 Berlin, Germany. kjsiems@zedat.fu-berlin.de
authors.forename: K
authors.initials: K
authors.lastname: Jenett-Siems
authors.forename: K
authors.initials: K
authors.lastname: Siems
authors.forename: L
authors.initials: L
authors.lastname: Witte
authors.forename: E
authors.initials: E
authors.lastname: Eich
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D008401:Gas Chromatography-Mass Spectrometry; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D015030:Zimbabwe
chemical_list: D005663:Furans; D012717:Sesquiterpenes