50916-45-5Relevant academic research and scientific papers
P-Hydroxyphenacyl photoremovable protecting groups Robust photochemistry despite substituent diversity
Givens, Richard S.,Stensrud, Kenneth,Conrad, Peter G.,Yousef, Abraham L.,Perera, Chamani,Senadheera, Sanjeewa N.,Heger, Dominik,Wirz, Jakob
, p. 364 - 384 (2011/06/22)
A broadly based investigation of the effects of a diverse array of substituents on the photochemical rearrangement of p-hydroxyphenacyl esters has demonstrated that common substituents such as F, MeO, CN, CO2R, CONH2, and CH3 have little effect on the rate and quantum efficiencies for the photo-Favorskii rearrangement and the release of the acid leaving group or on the lifetimes of the reactive triplet state. A decrease in the quantum yields across all substituents was observed for the release and rearrangement when the photolyses were carried out in buffered aqueous media at pHs that exceeded the ground-state pKa of the chromophore where the conjugate base is the predominant form. Otherwise, substituents have only a very modest effect on the photoreaction of these robust chromophores.
Synthesis of some 5-phenylisoxazole-3-carboxylic acid derivatives as potent xanthine oxidase inhibitors
Wang, Shaojie,Yan, Jufang,Wang, Jian,Chen, Jiarun,Zhang, Tingjian,Zhao, Yong,Xue, Mingxing
experimental part, p. 2663 - 2670 (2010/07/09)
A number of 5-phenylisoxazole-3-carboxylic acid derivatives (5a-e, 11a-e) were synthesized and analyzed for their ability to inhibit xanthine oxidase. Most of the compounds exhibited potency levels in the micromolar/submicromolar range. The presence of a cyano group at the 3-position of phenyl moiety turned out to be the preferred substitution pattern, as its transformation into the nitro group determined a general reduction of the inhibitory potency. A molecular modeling study on compound 11a was performed to gain an insight into its binding mode with xanthine oxidase, and to provide the basis for further structure-guided design of new non-purine xanthine oxidase inhibitors related with 5-phenylisoxazole-3-carboxylic acid scaffold.
3' Cyanophenylalkanolamines: a contribution to the search for selective β adrenomimetic compounds
Pratesi,Grana,Villa
, p. 753 - 765 (2007/10/06)
Some derivatives of 1 (3' cyanophenyl) 2 aminoethanol have been synthesized in which OH is substituted at the nucleus, methyl or ethyl at the α carbon atom and isopropyl or t butyl at the nitrogen atom. The pharmacological research has shown that by combi
