The first synthesis and iron binding studies of the natural product, myo-inositol 1,2,3-trisphosphate
作者:Ian D. Spiers、Sally Freeman、David R. Poyner、Carl H. Schwalbe
DOI:10.1016/0040-4039(95)00192-f
日期:1995.3
The natural product myo-inositol1,2,3-trisphosphate 1 has been prepared and shown to inhibit Fe3+ catalysed hydroxyl radical formation.
天然产物肌醇肌醇1,2,3-三磷酸肌醇1已被准备并显示出抑制的Fe 3+催化羟基自由基的形成。
[EN] SYNTHESIS OF CYCLOHEXANE DERIVATIVES USEFUL AS SENSATES IN CONSUMER PRODUCTS<br/>[FR] SYNTHÈSE DE DÉRIVÉS DE CYCLOHEXANE UTILES COMME AGENTS SENSORIELS DANS DES PRODUITS DE CONSOMMATION
申请人:PROCTER & GAMBLE
公开号:WO2010019730A1
公开(公告)日:2010-02-18
The present invention provides synthetic routes for preparing various isomers of cyclohexane-based coolants, such as menthyl esters and menthanecarboxamide derivatives, in particular those substituted at the amide nitrogen, for example with an aromatic ring or aryl moiety. Such structures have high cooling potency and long lasting sensory effect, which make them useful in a wide variety of consumer products. One synthetic route involves a copper catalyzed coupling of a primary menthanecarboxamide with an aryl halide, such reaction working best in the presence of potassium phosphate and water. Using this synthetic route, specific isomers can be prepared including the menthanecarboxamide isomer having the same configuration as l-menthol and new isomers such as a neoisomer having opposite stereochemistry at the carboxamide (C-1) position. The neoisomer unexpectedly has potent and long lasting cooling effect. Preparation schemes for neoisomers of other menthyl derivatives which are useful as coolants, including esters, ethers, carboxy esters and other N-substituted carboxamides are also provided.
Phytases are the primary enzymes responsible for the hydrolysis of phyticacid, myo-inositol-1, 2, 3, 4, 5, 6-hexakisphosphate (InsP6). The pathway of hydrolysis of InsP6 by phytasefromwheat bran of Triticum aestivum L. cv. Nourin #61 is proved in this study. Structures of the intermediates were established by a variety of nuclear magnetic resonance techniques (1H-, two-dimensional 1H-1H coupling-correlation
Quantitative Analysis of Phytate Globoids Isolated from Wheat Bran and Characterization of Their Sequential Dephosphorylation by Wheat Phytase
作者:Lisbeth Bohn、Lone Josefsen、Anne S. Meyer、Søren K. Rasmussen
DOI:10.1021/jf071191t
日期:2007.9.1
when pure phyticacid was replaced with phytate globoids as substrate. Time course degradation of phyticacid or phytate globoids using purified wheatphytase was followed by HPIC identification of inositol phosphates appearing and disappearing as products. In both cases, enzymatic degradation initiated at both the 3- and 6-positions of phyticacid and end products were inositol and phosphate.
Synthesis of Cyclohexane Derivatives Useful as Sensates in Consumer Products
申请人:Yelm Kenneth Edward
公开号:US20100076080A1
公开(公告)日:2010-03-25
The present invention provides synthetic routes for preparing various isomers of cyclohexane-based coolants, such as menthyl esters and menthanecarboxamide derivatives, in particular those substituted at the amide nitrogen, for example with an aromatic ring or aryl moiety. Such structures have high cooling potency and long lasting sensory effect, which make them useful in a wide variety of consumer products. One synthetic route involves a copper catalyzed coupling of a primary menthanecarboxamide with an aryl halide, such reaction working best in the presence of potassium phosphate and water. Using this synthetic route, specific isomers can be prepared including the menthanecarboxamide isomer having the same configuration as l-menthol and new isomers such as a neoisomer having opposite stereochemistry at the carboxamide (C-1) position. The neoisomer unexpectedly has potent and long lasting cooling effect. Preparation schemes for neoisomers of other menthyl derivatives which are useful as coolants, including esters, ethers, carboxy esters and other N-substituted carboxamides are also provided.