21563-72-4Relevant academic research and scientific papers
Infrared and Nuclear Magnetic Resonance Properties of Benzoyl Derivatives of Five-membered Monoheterocycles and Determination of Aromaticity Indices
Jeon, Kyu Ok,Jun, Jung Ho,Yu, Ji Sook,Lee, Chang Kiu
, p. 763 - 771 (2007/10/03)
Benzophenones, 2-benzoylthiophenes, 2-benzoylpyrroles, and 2-benzoylfurans, which have substituents at m- and p-positions of the benzoyl ring were prepared and their ir and nmr spectra were obtained in 0.1 M chloroform-d solution. The chemical shift values of each series were plotted against the Hammett substituent parameters to give good correlation, with the exception of the ortho-Hs and -Cs. The slopes as well as the differences in chemical shift gave sets of meaningful values for the indices of aromaticy.
Synthesis and in Vitro Aldolase Reductase Inhibitory Activity of Compounds Containing an N-Acylglycine Moiety
DeRuiter, Jack,Swearingen, Blake E.,Wandrekar, Vinay,Mayfield, Charles A.
, p. 1033 - 1038 (2007/10/02)
A number of N-benzoylglycines (6), N-acetyl-N-phenylglycines (7), N-benzoyl-N-phenylglycines (8), and tricyclic N-acetic acids (9-12) were synthesized as analogues of the N-acylglycine-containing aldolase reductase inhibitors alrestatin and 2-oxoquinoline-1-acetic acid.Derivatives of 6, which represent ring-simplified analogues of alrestatin, are very weak inhibitors of aldolase reductase obtained from rat lens, producing 50percent inhibition only at concentrations exceeding 100 μM.Compounds of series 7 were designed as ring-opened analogues of the 2-oxoquinolines.While this derivatives are more potent than compounds of series 6 (IC 50s of 6-80 μM), they are less active than the corresponding 2-oxoquinolines.Analogues of series 8 were designed as hybrid structures of both alrestatin and the 2-oxoquinoline-1-acetic acids.These compounds are substantially more potent than compounds of series 6 and 7 and display inhibitory activities comparable to or greater than alrestatin or the 2-oxoquinolines (IC 50s of 0.1-10 μM).Of the rigid analogues of 8, the most potent derivative is benzoxindol (12) with an IC 50 of 0.67 μM, suggesting that fusion of the two aromatic rings of 8 in a coplanar conformation may optimize affinity for aldose reductase in this series.
