10590-85-9Relevant academic research and scientific papers
Divergent Synthesis of Natural Benzyl Salicylate and Benzyl Gentisate Glucosides
Fedorova, Dariya D.,Nazarova, Dariya S.,Avetyan, David L.,Shatskiy, Andrey,Belyanin, Maxim L.,K?rk?s, Markus D.,Stepanova, Elena V.
, p. 3173 - 3180 (2020/11/02)
Herein is reported the first total synthesis of benzyl salicylate and benzyl gentisate glucosides present in various plant species, in particular the Salix genus, such as Populus balsamifera and P. trichocarpa. The method permits the synthesis of several natural phenolic acid derivatives and their glucosides starting from salicylic or gentisic acid. The divergent approach afforded access to three different acetylated glucosides from a common synthetic intermediate. The key step in the total synthesis of naturally occurring glycosides - the selective deacetylation of the sugar moiety - was achieved in the presence of a labile benzyl ester group by employing mild deacetylation conditions. The protocol permitted synthesis of trichocarpine (4 steps, 40% overall yield), isotrichocarpine (3 steps, 51% overall yield), trichoside (6 steps, 40% overall yield), and deoxytrichocarpine (3 steps, 42% overall yield) for the first time (>95% purity). Also, the optimized mild deacetylation conditions allowed synthesis of 2-O-acetylated derivatives of all four glycosides (5-17% overall yield, 90-95% purity), which are rare plant metabolites.
External preparation for skin
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, (2008/06/13)
An external preparation for the skin comprising at least one of the glycosides or hydroxysaliyclic acid and/or the glycosides of aliphatic esters of hydroxysalicylic acid represented by the following formula 1: STR1 wherein R1 represents one selected from the group consisting of saturated hydrocarbon group and an unsaturated hydrocarbon group which have 1 to 20 carbon atoms and which may be either a straight-chain or a branched chain, and one of R2 and R3 represents a sugar residue and the other hydrogen. The external preparation for the skin has an excellent whitening effect and/or an excellent skin care effect.
