Starting from the glucose-derived δ-lactone and the functionalized aryl bromide, the first total synthesis of naturally occurring paecilomycin B was achieved via functionalized aryl-β-C-glycoside synthesis using 2,4,6-triisopropylphenyllithium under Barbier-type reaction conditions and ring-closing metathesis as the key steps.

The family of ribosome-inactivating proteins (RIPs) groups all enzymes (EC.3.2.2.22) with a so-called RIP domain which comprises N-glycosidase activity and enables these proteins to catalytically inactivate ribosomes.[...].

This human study shows that the isoflavone aglycone genistein penetrates significantly better into the skin when it is formulated in a liposomal preparation. The corresponding isoflavone glycoside genistin is not hydrolyzed to the biologically active aglycones upon topical application. Daniel Schmid and Fred Zülli Mibelle AG Cosmetics, Buchs, Switzerland Hans-Peter Nissen and Hanspeter Prieur D...

Preparation of glucosamine hydrochloride from the chitin horseshoe crab shells using chemical hydrolysis method has been done HCl concentration variation ratios 7%, 9%, 11%,14 % with a ratio 9:1 (v/w) for 4 hours at temperature 90ºC. Determination characteristics was characterized Fourier transform-infra red (FT-IR) spectroscopy, in which obtained OH group were 3446 cm-1 (s), 3448 3450 respecti...