Reference

Studies on the constituents of Lyonia ovalifolia Drude var

Studies on the constituents of Lyonia ovalifolia Drude var. elliptica Hand.-Mazz. (XXI). The difference of flavonoid glycosides between individuals. Kato, Yosisige; Yasue, Masaiti (Fac. Pharm. Sci., Tokushima Univ. Arts Sci., Tokushima, Japan). Shoyakugaku Zasshi, 37(4), 412-17 (Japanese) 1983. CODEN: SHZAAY. ISSN: 0037-4377. DOCUMENT TYPE: Journal CA Section: 63 (Pharmaceuticals) Section cross-reference(s): 11 Flavonoid compds. in the leaves of L. ovalifolia Drude var. elliptica Hand,-Mazz. collected from various places in Japan were studied by paper chromatog. The plants were sepd. in 3 groups; one group contained dihydroquercetin 3-rhamnoside [29838-67-3], quercetin 3-rhamnoside [522-12-3], and quercetin 3-galactoside [482-36-0], the second group quercetin 3-rhamnoside and quercetin 3-galactoside, and the 3rd group quercetin 3-galactoside. The constituents in the wood were independent of the place of growth. The amt. of toxic substances and that of triterpenoid glycosides were not related to those of flavonoids.

Astilbins as aldose reductase inhibitors and their extraction from Engelhardtia chrysolepis

Astilbins as aldose reductase inhibitors and their extraction from Engelhardtia chrysolepis. Haraguchi, Hiroyuki; Hashimoto, Kensuke; Tamura, Kokichi; Mizutani, Kenji (Maruzen Seiyaku Kk, Japan). Jpn. Kokai Tokkyo Koho JP 09030984 A2 4 Feb 1997 Heisei, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: A61K035-78. ICS: A61K035-78; A61K031-35; A61K031-70; C07D311-28. APPLICATION: JP 1995-205056 20 Jul 1995. DOCUMENT TYPE: Patent CA Section: 63 (Pharmaceuticals) Section cross-reference(s): 1, 11 Astilbins [astilbin, neoastilbin, isoastilbin, neoisoastilbin] as aldose reductase inhibitors and their extn. from E. chrysolepis leaves are claimed. Astilbins markedly inhibited aldose reductase activity with specified inhibitory rates ranging from 51 to 59%. The aldose reductase inhibitors are useful for treatment of e.g.In this experiment, several chemicals are used like 29838-67-3 and 480-18-2 complications from diabetes. [no data]. .