Constituents of Desmodium salicifolium (Poir.) DC (Fabaceae) with antifungal activity

Structure elucidation of olasubscorpioside C, a new rotameric biflavonoid glycoside from the stem barks of Olax subscorpioidea (Oliv)

“…1 A great number of these compounds have been isolated from several plants widespread in Africa. [2][3][4] Because of the presence of polymerizing or condensed enzymes in plants, some flavonoids undergo several polymerization/chain reactions to yield condensed tannins. 5 Some investigation led to the isolation of a number of tannins from plants including proanthocyanidins and prodelphinidins.…”

“…[3][4] . The sub-fraction B 3-4 (970 mg) was then chromatographed on MPLC (Medium Pressure Liquid Chromatography) by using RP-C18 silica Methanol-d 4 ) δ 6.55 (s, 1H), 6.46 (s, 1H), 5.92 (s, 1H), 5.85 (d, J = 2.4 Hz, 1H), 5.80 (d, J = 2.3 Hz, 1H), 5.07 (d, J = 5.2 Hz, 1H), 4.68 (d, J = 1.7 Hz, 1H), 4.56 (d, J = 8.3 Hz, 1H), 4.47 (dd, J = 9.8, 8.3 Hz, 1H), 4.34 (d, J = 9.7 Hz, 1H), 4.13 (q, J = 5.1 Hz, 1H), 3.79 (s, 3H), 3.76 (s, 3H), 3.76 (m, 1H), 3.56 (m, 1H), 3.56 (m, 1H), 3.30 (m, 1H), 2.86 (dd, J = 16.3, 5.5 Hz, 1H), 2.50 (dd, J = 16.5, 4.5 Hz, 1H), 1.19 (d, J = 6.2 Hz, 3H) 13.…”