Lignans from the root of Rhodiola crenulata. 2012

Ya-nan Yang, and Zhao-zhen Liu, and Zi-ming Feng, and Jian-shuang Jiang, and Pei-cheng Zhang
State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.

Rhodiola crenulata L. is an important species in genus Rhodiola widely used as a health food to reinforce immunity, improve memory and learning, scavenge active-oxygen species, and relieve altitude sickness. Eleven new lignans and a new benzonitrile compound, crenulatanoside A, were isolated from the roots of R. crenulata L. along with 25 known compounds, including 12 lignans. The structures of these compounds were elucidated by spectroscopic data and chemical evidence. Among them, compounds 1-4 and 5-7 were determined to be optical isomers of two 8-O-4' neolignan glycosides. Compounds 8-11 were aryl tetralin type lignans, and compounds 12 and 13 were dihydrobenzofuran neolignans. All of the isolated compounds were evaluated for their inhibitory activity against α-glucosidase. From the data obtained, compound 37 showed strong inhibitory activity against α-glucosidase with an IC(50) value of 96.8 μM.

UI MeSH Term Description Entries
D009682 Magnetic Resonance Spectroscopy Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING). In Vivo NMR Spectroscopy,MR Spectroscopy,Magnetic Resonance,NMR Spectroscopy,NMR Spectroscopy, In Vivo,Nuclear Magnetic Resonance,Spectroscopy, Magnetic Resonance,Spectroscopy, NMR,Spectroscopy, Nuclear Magnetic Resonance,Magnetic Resonance Spectroscopies,Magnetic Resonance, Nuclear,NMR Spectroscopies,Resonance Spectroscopy, Magnetic,Resonance, Magnetic,Resonance, Nuclear Magnetic,Spectroscopies, NMR,Spectroscopy, MR
D004791 Enzyme Inhibitors Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction. Enzyme Inhibitor,Inhibitor, Enzyme,Inhibitors, Enzyme
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D017705 Lignans A class of dibenzylbutane derivatives which occurs in higher plants and in fluids (bile, serum, urine, etc.) in man and other animals. These compounds, which have a potential anti-cancer role, can be synthesized in vitro by human fecal flora. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed) Lignan,Neolignan,Neolignans
D018517 Plant Roots The usually underground portions of a plant that serve as support, store food, and through which water and mineral nutrients enter the plant. (From American Heritage Dictionary, 1982; Concise Dictionary of Biology, 1990) Plant Bulbs,Plant Root,Bulb, Plant,Bulbs, Plant,Plant Bulb,Root, Plant,Roots, Plant
D029771 Rhodiola A plant genus of the family CRASSULACEAE. Members contain rhodioloside. This roseroot is unrelated to the familiar rose (ROSA). Some species in this genus are called stonecrop which is also a common name for SEDUM. Rhodiola crenulata,Roseroot,Rhodiola rosea,Roseroots
D065089 Glycoside Hydrolase Inhibitors Compounds that inhibit or block the activity of GLYCOSIDE HYDROLASES such as ALPHA-AMYLASES and ALPHA-GLUCOSIDASES. alpha-Glucosidase Inhibitor,alpha-Glucosidase Inhibitors,Intestinal alpha-Amylase Inhibitors,Pancreatic alpha-Amylase Inhibitors,alpha-Amylase Inhibitors, Pancreatic,Hydrolase Inhibitors, Glycoside,Inhibitor, alpha-Glucosidase,Inhibitors, Glycoside Hydrolase,Inhibitors, Intestinal alpha-Amylase,Inhibitors, Pancreatic alpha-Amylase,Inhibitors, alpha-Glucosidase,Intestinal alpha Amylase Inhibitors,Pancreatic alpha Amylase Inhibitors,alpha Amylase Inhibitors, Pancreatic,alpha Glucosidase Inhibitor,alpha Glucosidase Inhibitors,alpha-Amylase Inhibitors, Intestinal

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