Efficient synthesis of kaempferol 3,7-O-bisglycosides via successive glycosylation with glycosyl ortho-alkynylbenzoates and trifluoroacetimidates
摘要:
Selective glycosylation of the 3-OH of 5,4'-di-O-acetyl-kaempferol was achieved with glycosyl orthoalkynylbenzoates as donors under the catalysis of Ph(3)PALINTf(2), and subsequent glycosylation of the remaining 7-OH with glycosyl trifluoroacetimidates under the catalysis of BF3.OEt2, after global deprotection, afforded the kaempferol 3,7-O-bisglycosides conveniently. (C) 2012 Elsevier Ltd. All rights reserved.
Efficient synthesis of kaempferol 3,7-O-bisglycosides via successive glycosylation with glycosyl ortho-alkynylbenzoates and trifluoroacetimidates
摘要:
Selective glycosylation of the 3-OH of 5,4'-di-O-acetyl-kaempferol was achieved with glycosyl orthoalkynylbenzoates as donors under the catalysis of Ph(3)PALINTf(2), and subsequent glycosylation of the remaining 7-OH with glycosyl trifluoroacetimidates under the catalysis of BF3.OEt2, after global deprotection, afforded the kaempferol 3,7-O-bisglycosides conveniently. (C) 2012 Elsevier Ltd. All rights reserved.
PHOSPHORYLATED AND PHOSPHONATED PYRONE ANALOGS FOR THERAPEUTIC TREATMENT
申请人:Lee May Dean-Ming
公开号:US20100297020A1
公开(公告)日:2010-11-25
Methods are described for the treatment and prevention of metabolic disorders or other diseases by administering a pyrone analog or a derivative thereof. Methods are also described for the treatment and prevention of metabolic disorders and other diseases by administering a pyrone analog, or a derivative thereof, in combination with one or more additional agents such as, for example, lipid lowering agents or glucose lowering agents. Methods are described for the modulation of lipid transporter activity to increase the efflux of lipid from a physiological compartment into an external environment. Methods disclosed herein may be used to assess treatment or prevention of a metabolic disorder following administration of a pyrone analog or a derivative thereof.
[EN] PHOSPHORYLATED AND PHOSPHONATED PYRONE ANALOGS FOR THERAPEUTIC TREATMENT<br/>[FR] ANALOGUES DE PYRONE PHOSPHORYLÉE ET PHOSPHOLATÉE POUR TRAITEMENT THÉRAPEUTIQUE
申请人:LIMERICK BIOPHARMA
公开号:WO2010129138A2
公开(公告)日:2010-11-11
Methods are described for the treatment and prevention of metabolic disorders or other diseases by administering a pyrone analog or a derivative thereof Methods are also described for the treatment and prevention of metabolic disorders and other diseases by administering a pyrone analog, or a derivative thereof, in combination with one or more additional agents such as, for example, lipid lowering agents or glucose lowering agents Methods are described for the modulation of lipid transporter activity to increase the efflux of lipid from a physiological compartment into an external environment Methods disclosed herein may be used to assess treatment or prevention of a metabolic disorder following administration of a pyrone analog or a derivative thereof.