Pterocarpan chemical structure. It consists of a 1-benzofuran moiety (dotted blue circle) fused to a 2H-chromene moiety (dotted green circle). The systematic name for it is 6H-[1]benzofuro[3,2-c]chromene. The new numbering of the resulting moiety is shown with red numbers.
Pterocarpans are derivatives of isoflavonoids found in the family Fabaceae. It is a group of compounds which can be described as benzo-pyrano-furano-benzenes (i.e. 6H-[1]benzofuro[3,2-c]chromene skeleton) which can be formed by coupling of the B ring to the 4-one position.[1]
↑Tiemann, Karin; Hinderer, Walter; Barz, Wolfgang (1987-03-23). "Isolation of NADPH:isoflavone oxidoreductase, a new enzyme of Pterocarpan phytoalexin biosynthesis in cell suspension cultures of Cicer arietinum". FEBS Letters (Wiley) 213 (2): 324–328. doi:10.1016/0014-5793(87)81515-6. ISSN0014-5793.
↑Welle R, Grisebach H (1988). "Induction of phytoalexin synthesis in soybean: enzymatic cyclization of prenylated pterocarpans to glyceollin isomers". Arch. Biochem. Biophys.263 (1): 191–8. doi:10.1016/0003-9861(88)90627-3. PMID3369863.
↑Tanaka, Hitoshi; Tanaka, Toshihiro; Etoh, Hideo (1997). "A pterocarpan from Erythrina orientalis". Phytochemistry (Elsevier BV) 45 (1): 205–207. doi:10.1016/s0031-9422(96)00841-2. ISSN0031-9422.
↑Blagrove, R. J.; Colman, P. M.; Lilley, G. G.; Van Donkelaar, A.; Suzuki, E. (1983). "Physicochemical and structural studies of phaseolin from French bean seed". Plant Foods for Human Nutrition (Springer Science and Business Media LLC) 33 (2–3): 227–229. doi:10.1007/bf01091313. ISSN0921-9668.
↑PERRIN, DAWN R.; BOTTOMLEY, W. (1961). "Pisatin: an Antifungal Substance from Pisum sativum L.". Nature (Springer Science and Business Media LLC) 191 (4783): 76–77. doi:10.1038/191076a0. ISSN0028-0836. PMID13734533.