Lanthanum-catalyzed aqueous acylation of monosaccharides by benzoyl methyl phosphate
作者:Ian James Gray、Rui Ren、Bernhard Westermann、Ronald Kluger
DOI:10.1139/v06-047
日期:2006.4.1
likely mechanism involves preferential bisbidentate coordination of BMP and the diol to lanthanide ion (which explains how an ester forms when water is in enormous excess) followed by base-catalyzedintramolecular acyl transfer. The method should be generally applicable where a selective acylation reaction in water as solvent is desirable.
Biomimetic Monoacylation of Diols in Water. Lanthanide-Promoted Reactions of Methyl Benzoyl Phosphate
作者:Lisa L. Cameron、Sheila C. Wang、Ronald Kluger
DOI:10.1021/ja049538l
日期:2004.9.1
monoacylation of diols by acyl phosphate monoesters in water is a biomimetic analogy to the enzymic aminoacylation of tRNA by aminoacyl adenylates. Without catalysis, acyl phosphate monoesters react rapidly with amines but very slowly with water and alcohols. Lanthanide ions dramatically and selectively facilitate the base-catalyzed monoacylation of diols in water by methyl benzoylphosphate (MBP), a typical acyl
Magnesium ion enhances lanthanum-promoted monobenzoylation of a monosaccharide in water
作者:Raj S. Dhiman、Ronald Kluger
DOI:10.1039/b926851k
日期:——
Magnesium ion combines selectively with the methyl phosphate by-product in the lanthanum-promoted biomimetic reaction of benzoyl methyl phosphate with monosaccharides.
在镧促进的苯甲酰基磷酸甲酯与单糖的仿生反应中,镁离子选择性地与磷酸甲酯副产物结合。
Medical devices and methods for modulation of physiology using device-based surface chemistry
申请人:Saffran N. Bruce
公开号:US20060177476A1
公开(公告)日:2006-08-10
This invention provides implantable medical devices having at least one moiety attached to the surface capable of catalyzing a reaction in vivo. The implantable medical device has a body such as a stent with a surface adapted to be placed adjacent to a biological tissue or fluid. The body has at least one moiety attached to the surface which is capable of catalyzing a first reaction upon contacting a first substrate in the biological tissue or fluid. The moiety remains attached to the surface after the first reaction and is capable of catalyzing at least a second reaction upon contacting a second substrate. In preferred embodiments the moiety is capable of catalyzing a multitude of reactions as substrates come into contact and then leave the surface of the device.