Synthesis of Pro-XylaneTM: A new biologically active C-glycoside in aqueous media
摘要:
The scope and limitation of Lubineau's reaction were evaluated for the synthesis of C-glycosides (compounds 1-13). Further transformation of side chain carbonyl was also achieved (compounds 16-23). Optimization of these two steps was investigated in xylose case. Some of the compounds were shown to stimulate sulfated glycosaminoglycans (GAGs) synthesis. Compound 20 (called Pro-Xylane(TM)) was identified as the best activator of GAGs biosynthesis. Pro-Xylane(TM) was developed using environmentally friendly conditions relevant to 'Green-Chemistry' principles and launched on the market in September 2006. This compound is the first example of 'Green' chemical used in cosmetic. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of Pro-XylaneTM: A new biologically active C-glycoside in aqueous media
摘要:
The scope and limitation of Lubineau's reaction were evaluated for the synthesis of C-glycosides (compounds 1-13). Further transformation of side chain carbonyl was also achieved (compounds 16-23). Optimization of these two steps was investigated in xylose case. Some of the compounds were shown to stimulate sulfated glycosaminoglycans (GAGs) synthesis. Compound 20 (called Pro-Xylane(TM)) was identified as the best activator of GAGs biosynthesis. Pro-Xylane(TM) was developed using environmentally friendly conditions relevant to 'Green-Chemistry' principles and launched on the market in September 2006. This compound is the first example of 'Green' chemical used in cosmetic. (C) 2008 Elsevier Ltd. All rights reserved.
C-GLYCOSIDE COMPOUNDS, AND METHOD FOR PREPARING C-GLYCOSIDE COMPOUNDS
申请人:Benvegnu Thierry
公开号:US20110245490A1
公开(公告)日:2011-10-06
The invention relates to C-glycose compounds of formula (I) where: S′ is a monosaccharide radical or a polysaccharide radical derived from a monosaccharide or polysaccharide S; R is a linear or branched alkyl radical; and Z is an ethylenyl CH═CR1(R2) or an acetylenyl C≡CR3 radical. The invention also relates to a method for preparing C-glycoside compounds of formula (III), characterised in that the method consists of a step of reacting a sugar (S), in an aqueous solvent or in the absence of a solvent and in the presence of an organic or mineral base (B), with a phosphonate of formula (II) according to the following reaction pattern: Formulas (II), (III).
A highly efficient and facile one pot synthesis of novel 1-glycopyranosyl-4-biaryl butenone derivatives
作者:Kavita、Vipin K. Maikhuri、Harbansh Singla、Jyotirmoy Maity、Ashok K. Prasad
DOI:10.1080/00397911.2023.2190461
日期:——
Abstract A facile and efficient methodology, comprised of a domino reaction, a Suzuki-Miyaura coupling reaction followed by an aldol condensation has been developed to synthesize novel 1-glycopyranosyl-4-biaryl butenone derivatives in a one-pot fashion. The reaction of C-glycosides 1-C-(β-D-glucosyl)propan-2-one, 1-C-(β-D-mannosyl)propan-2-one, 1-C-(β-D-galactosyl)propan-2-one, 1-C-(β-D-lactosyl)propan-2-one
摘要 一种简便有效的方法,包括多米诺骨牌反应、Suzuki-Miyaura 偶联反应和随后的醛醇缩合,已经开发出来以一锅法合成新型 1-glycopyranosyl-4-biaryl butenone 衍生物。C-糖苷1- C -(β-D-glucosyl)propan-2-one, 1- C -(β-D-mannosyl)propan-2-one, 1- C -(β-D-galactosyl)的反应)propan-2-one, 1- C -(β-D-lactosyl)propan-2-one with 5-bromothiophene-2-carboxaldehyde or 4-bromobenzaldehyde and different boronic acids presence of Pd(II)-catalyst and室温下甲醇中的碱以 75-85% 的收率产生各种查尔酮型联苯C-糖苷。