📜Qingyangshengenin 3-O-β-D-Glucopyranosyl-(1->4)-β-D-Glucopyranosyl-(1->4)-β-D-Cymaropyranosyl-(1->4)-β-D-Oleandropyranosyl-(1->4)-β-D-Digitoxopyranoside置于盐酸体系中,用 甲醇 作为反应溶剂,化学反应 0.25H,反应生成 青阳参苷元 参考文献:New Pregnane Glycosides From The Roots Of Cynanchum Otophyllum 标题:New Pregnane Glycosides From The Roots Of Cynanchum Otophyllum 摘要:Six New Pregnane Glycosides With An Acyl At C-12 And A Straight Sugar Chain At C-3,Namely Otophyllosides H-M (1-6),Were Isolated From The Roots Of Cynanchum Otophyllum (Asclepiadaceae) Collected From Eryuan County In Yunnan Province Of China. Their Structures Were Characterized To Be Qingyangshengenin 3-0-Beta-D-Glucopyranosyl-(1-> 4)-Beta-D-Glucopyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl-(L-> 4)-Beta-D-Digitoxopyranoside (1),Qingyangshengenin 3-0-Beta-D-Glucopyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl-(1-4)-0-D-Cymaropyranosyi-(1-4)-P-D-Digitoxopyranoside (2),Qingyangshengenin 3-0-Beta-D-Glucopyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl-(1-> 4)-Beta-D-Oleandropyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl-(1-> 4)-Beta-D-Digitoxopyranoside (3),Qingyangshengenin 3-0-Beta-D-Glucopyranosyl-(1-> 4)-Beta-D-Thevetopyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl(1-> 4)-Beta-D-Digitoxopyranoside (4),Caudatin 3-0-Beta-D-Glucopyranosyl-(1-> 4)-Beta-D-Glucopyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl-(1-> 4)-Beta-D-Oleandropyranosyl-(1-> 4)-Beta-D-Cymaropyranoside (5),Caudatin 3-0-Beta-D-Glucopyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl-(1-> 4)-Beta-D-Oleandropyranosyl-(1-> 4)-Beta-D-Cymaropyranosyl-(1-> 4)-Beta-D-Cymaropyranoside (6),Respectively,On The Basis Of Detailed Spectroscopic Analysis And Chemical Method. (C) 2007 Elsevier Inc. All Rights Reserved. DOI:10.1016/j.Steroids.2007.06.001
参考文献:10.1016/j.bmc.2017.04.045 摘要:Huang LJ, Chen SR, Yuan CM, Gu W, Guo BJ, Wang YT, Wang Y, Hao XJ. C21-steroidal pregnane sapogenins and their derivatives as anti-inflammatory agents. Bioorg Med Chem. 2017 Jul 01;25(13):3512–24. doi: 10.1016/j.bmc.2017.04.045. 参考文献:10.1016/j.bmc.2021.116581 摘要:Li XS, Chen TJ, Xu ZP, Long J, He MY, Zhan HH, Zhuang HC, Wang QL, Liu L, Yang XM, Tang JS. Synthesis and biological evaluation of 3β-O-neoglycosides of caudatin and its analogues as potential anticancer agents. Bioorg Med Chem. 2022 Jan 15;54():116581. doi: 10.1016/j.bmc.2021.116581.