Studies on the Constituents of Purgative Crude Drugs. Part XXIX. Studies on the Constituents of the Leaves of Cassia torosa CAV. III. The Structures of Two New Flavone Glycosides.
在本研究中,物种:白僵菌,蓝色犁头霉和灰绿犁头霉在黄酮(白杨素,芹菜素,木犀草素,香叶木素)和黄烷酮(松属素,柚皮素,圣草酚,橙皮素)的生物转化中使用。该球孢白僵菌AM 278应变催化的甲基葡萄糖附着反应以类黄酮分子在位置C7和C3'。利用Absidia属(A. coerulea AM 93,A。glauca AM 177)作为生物催化剂可导致在类黄酮骨架的C7和C3'位置上形成带有糖分子的糖苷。先前没有文献报道九种获得的产品。
bassiana AM 278 strain catalyzed the methylglucose attachment reactions to the flavonoid molecule at positions C7 and C3′. The application of the Absidia genus (A. coerulea AM 93, A. glauca AM 177) as the biocatalyst resulted in the formation of glucosides with a sugar molecule present at C7 and C3′ positions of flavonoids skeleton. Nine of obtained products have not been previously reported in the literature
在本研究中,物种:白僵菌,蓝色犁头霉和灰绿犁头霉在黄酮(白杨素,芹菜素,木犀草素,香叶木素)和黄烷酮(松属素,柚皮素,圣草酚,橙皮素)的生物转化中使用。该球孢白僵菌AM 278应变催化的甲基葡萄糖附着反应以类黄酮分子在位置C7和C3'。利用Absidia属(A. coerulea AM 93,A。glauca AM 177)作为生物催化剂可导致在类黄酮骨架的C7和C3'位置上形成带有糖分子的糖苷。先前没有文献报道九种获得的产品。
Studies on the Constituents of Purgative Crude Drugs. Part XXIX. Studies on the Constituents of the Leaves of Cassia torosa CAV. III. The Structures of Two New Flavone Glycosides.
作者:Susumu KITANAKA、Michio TAKIDO
DOI:10.1248/cpb.40.249
日期:——
Two new flavone glycosides were isolated along with diosmetin, luteolin, and luteolin 7-O-glucoside, from the leaves of Cassia torosa CAV., and their structures were established as diosmetin 3'-O-β-D-glucopyranoside (1) and torosaflavone B 3'-O-β-D-glucopyranoside (2) (diosmetin 6-C-β-D-oliopyranosyl-3'-O-β-D-glucopyranoside) on the basis of spectroscopic and chemical evidence.