22252-39-7Relevant articles and documents
Pregnane glycosides from Gymnema inodorum and their α-glucosidase inhibitory activity
Trang, Do Thi,Yen, Duong Thi Hai,Cuong, Nguyen The,Anh, Luu The,Hoai, Nguyen Thi,Tai, Bui Huu,Doan, Vu Van,Yen, Pham Hai,Quang, Tran Hong,Nhiem, Nguyen Xuan,Minh, Chau Van,Kiem, Phan Van
, p. 2157 - 2163 (2019/11/03)
Two new pregnane glycosides, gyminosides A and B (1 and 2) and three known, tinctoroside B (3), tinctoroside C (4), and gymnepregoside F (5) were isolated from the leaves of Gymnema inodorum (Lour.) Decne. Their structures were elucidated by physical and chemical methods and comparing with those reported in the literature. All these compounds were evaluated for α-glucosidase assay. Compound 5 exhibited the most anti α-glucosidase activity with inhibitory percentage of 63.7 ± 3.9% at the concentration of 200 μM. Compounds 1–4 showed moderate anti α-glucosidase activity with inhibitory percentage ranging from 40.0 to 52.1%.
New C21 steroidal glycosides from the roots of Cynanchum stauntonii and their protective effects on hypoxia/reoxygenation induced cardiomyocyte injury
Lei, Qiao-Shi,Zuo, Yi-Han,Lai, Chang-Zhi,Luo, Jin-Fang,Pang, Shu-Wen,Zhou, Hua,Yao, Xin-Sheng,Tang, Jin-Shan
, p. 1716 - 1722 (2017/07/27)
Phytochemical investigations from the roots of Cynanchum stauntonii led to obtain four new C21 steroidal glycosides (1–4) and one known compound stauntoside F (5). Their chemical structures were characterized by sophisticated analyses of IR, HR
C21 steroidal glycosides from the roots of Cynanchum paniculatum
Zhao, Dan,Feng, Baomin,Chen, Shaofei,Chen, Gang,Li, Zhifeng,Lu, Xiaojie,Sang, Xianan,An, Xiao,Wang, Haifeng,Pei, Yuehu
, p. 51 - 57 (2016/07/15)
As a part of our continuing research for bioactive constituents from Cynanchum plants, four new C21 steroidal glycosides, cynapanoside D-G (1–4), together with six known compounds (5–10) were isolated from the roots of Cynanchum paniculatum (Bge.) Kitag. Their structures were elucidated on the basis of 1D- and 2D-NMR spectroscopic data as well as HR-ESI-MS analysis. Compound 8 exhibited potent inhibitory activities against HL-60, HT-29, PC-3 and MCF-7 cell lines with IC50 values of 8.3, 7.5, 34.3 and 19.4?μM, respectively and compounds 1–4 and 9 displayed moderate cytotoxicity against the four cell lines. The in vitro antioxidant activities of compounds 1–4, 8 and 9 were assayed by DPPH radical scavenging activity. Antibacterial and antifungal activities of compounds 1–4, 8 and 9 were also tested.