1832-88-8

Upstream product

• 100508-96-1 ornogenin 

Downstream Products

• 110-15-6 succinic acid 
• 75-07-0 acetaldehyde 
• 3080-22-6 5α-Dihydrosarcostin 
• 15894-87-8 3.12-20-Tri-O-benzoyl-sarcostin 
• 6785-38-2 3β,8β,12β,14β-Tetrahydroxyandrost-5-en-17-on 

Relevant academic research and scientific papers

A PREGNANE ESTER DIGLYCOSIDE FROM PERIPLOCA CALOPHYLLA

A new pregnane ester diglycoside of ornogenin named as plocinine was isolated from the dried twigs of Periploca calophylla.On the basis of chemical and spectroscopic evidences its structure was established as 12,20-di-O-cinnamoyl sarcostin-3-O-α-L-oleandr

Four new immunomodulating steroidal glycosides from the stems of Stephanotis mucronata

Four new C-21 steroidal glycosides, mucronatosides E (1), F (2), G (3), and H (4), were isolated from the stems of Stephanotis mucronata. Two of them had the rare aglycone with a double bond between C-6 and C-7. Their structures were elucidated on the bas

Four new pregnane glycosides from Gymnema latifolium and their α-glucosidase and α-amylase inhibitory activities

Four new pregnane glycosides, gymlatifosides A - D (1 ? 4) and one known pregnane glycoside, verticilloside J (5) were isolated from the leaves of Gymnema latifolium Wall. ex Wight. Their chemical structures were elucidated on the basis of extensive spectroscopic methods, including 1D, 2D NMR, HR-ESI-MS, and in comparison with the reported data. All these compounds were tested for α-glucosidase and α-amylase inhibitory activities. Compound 5 exhibited the most anti α-glucosidase activity with inhibitory percentage of 37.8 ± 1.5% at the concentration of 200 μM. Compounds 1–4 showed moderate anti α-glucosidase activity with inhibitory percentage ranging from 7.0 to 30.1%. In addition, all compounds 1–5 showed moderate/weak anti α-amylase activity in the investigated test.

Pregnane glycosides from Gymnema inodorum and their α-glucosidase inhibitory activity

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%.

The anti-glycative potentials of pregnane glycosides from Gymnema sylvestre

Gymnema sylvestre is known for its potent antidiabetic activity. Phytochemical investigations of this plant led to the isolation of three new pregnane glycosides, gymnepregosides R-T (1-3) and four known analogues, 12β-acetyloxy-3β,8β,14β,17β-tetrahydroxypregn-5-en-20-one 3-O-β-D-glucopyranosyl-(1→4)-6-deoxy-3-O-methyl-β-D-allopyranosyl-(1→4)-β-D-oleandropyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-D-cymaropyranoside (4), 12-O-(E)-cinnamoylgymnepregoside F (5), gymnepregoside F (6), and stephanoside I (7). Their structures were identified based on spectroscopic evidence and compared with those reported in the literature. All compounds were evaluated for antiglycative inhibitory activity. Compounds 1, 3, 5, and 6 showed the inhibitory effect on BSA-MGO formation ranging from 6.0 to 8.8 % at the concentrations of 400 μM. Compounds 1 and 2 showed significant breaking properties on MGO-AGE-protein crosslink with percent modification ranging from 54.6 to 58.4 %. Notably, a novel AGEs inhibitor (1) may inhibit the formation and accumulation of MGO-AGEs and protect cells from MGO-AGEs cross-linking damage.

A PREGNANE ESTER AND ITS GLYCOSIDE FROM ORTHENTHERA VIMINEA

A new pregnane ester named ornogenin and its diglycoside designated as ornine were isolated from the dried twigs of Orthenthera viminea.On the basis of chemical and spectroscopic evidence, their structures were established as 12,20-di-O-cinnamoyl-sarcosti