Athrotaxis alkaloids. Part II. Alkaloids of a. selaginoides and a. laxifolia

The taxodeaceous plant A. Selaginoides contains six known homoerythrina-type alkaloids and selaginoidine, which has a furan ring replacing the benzene ring of the latter type. Selaginoidine and five of the six above-mentioned alkaloids also occur in A. laxifolia.     

Polysaccharides ofEremurus. X. Characteristics of the polysaccharides ofEremurus lactiflorus andE. luteus

Water-soluble polysaccharides have been isolated from two species ofEremurus — E. lactiflorus andE. luteus — with yields of 13.5% and 20.5%, respectively. They contained mainly glucose and mannose in ratios of 1:5 and 1:3.1. The polysaccharides ofE. lactiflorus were separated from a column of DEAE-cellulose. The yield of neutral fraction was 10.3%. Gel filtration of the polysaccharides on Sephadex G-200 showed their polydispersity. Homogeneous fractions were obtained by fractional precipitation with ethanol. They have been characterized with respect to monosaccharide composition, molecular weight, and IR spectra.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 604–608, September–October, 1979.     

Rhodioloside fromRhodiola rosea andRh. quadrifida. I

Summary 1.Rh. quadrifida (Pall.) Fisch. et Mey has yielded a new glycoside which has been called rhodioloside and for which the structure of the -D-glucopyranoside of -(p-hydroxyphenyl)ethanol has been established.2. Rhodioloside is also present inRh. rosea L.3. -(p-Hydroxyphenyl)ethanol, which is the aglycone of the glucoside isolated, has been obtained from both plants.Khimiya Prirodnykh Soedinenii, Vol. 3, No. 4, pp. 244–249, 1967