Two new compounds, 5,7-dihydroxy-6-methyl-4′-methoxyisoflavone (6-methylbiochanin A) (1) and cis-3,5-diphenylpiperidine-2,6-dione (2) were isolated from the young stems of Derris indica along with desmethoxykanugin (3), 3′, 5′-dimethoxy-(2″, 3″: 7, 8)furanoflavone (4) and 7,4′-dimethyldaidzein (5). The structures of these compounds were determined by means of chemical and spectral studies.
RastogiRP, MehrotraBN. (1991) Compendium of Indian Medicinal Plants, Vol. 1, Central Drug Research Institute and Publications & Information Directorate, New Delhi, 153.
ParmarBS, SahrawatKL, MukerjeeSK. (1976) Pongamia glabra constituents and its use. Journal of Scientific and Industrial Research, 35, 608–611.
4.
LiL, LiX, ShiC, DengZ, FuH, ProkschP, LinW. (2006) Pongamone A–E, five flavonoids from the stems of a mangrove plant, Pongamia pinnata. Phytochemistry, 67, 1347–1352.
5.
GandhidasanR, NeelakantanS, RamanPV, DevarajS. (1987) Components of the galls on the leaves of Pongamia glabra: Structures of pongagallone-A and pongagallone-B. Phytochemistry, 26, 281–283.
SiminK, AliZ, Khaliq-Uz-Zaman, MuhammadS, AhmadV. (2002) Structure and biological activity of a new rotenoid from Pongamia pinnata. Natural Product Letters, 16, 351–357.
9.
YinH, ZhangS, WuJ. (2005) Prenylated flavonoids from Pongamia pinnata. Zeitschrift fuer Naturforschung, B: Chemical Sciences, 60, 356–358.
10.
WolfromML, MorganPW, BentonFL. (1940) Osage orange pigments. IV. Degree of unsaturation and flavone nature. Journal of the American Chemical Society, 62, 1484–1489.
11.
MabryTJ, MarkhamKR, ThomasMB. (1970) The Systematic Identification of Flavonoids, Springer Verlag: New York, 165–174.
12.
TalapatraSK, MallikAK, TalapatraB. (1982) Isopongaglabol and 6-methoxyisopongaglabol, two new hydroxyfuranoflavones from Pongamia glabra. Phytochemistry, 21, 761–766.
13.
MiyazawaM, AndoH, OkunoY, ArakiH. (2004) Biotransformation of isoflavones by Aspergillus niger, as biocatalyst. Journal of Molecular Catalysis B: Enzymatic, 27, 91–95.
