24195-10-6Relevant articles and documents
Photodetachment of zwitterions: Probing intramolecular coulomb repulsion and attraction in the gas phase using pyridinium dicarboxylate anions
Wang, Xue-Bin,Dacres, Jelena E.,Yang, Xin,Broadus, Katherine M.,Lis, Lev,Wang, Lai-Sheng,Kass, Steven R.
, p. 296 - 304 (2003)
Zwitterions are critically important in many biological transformations and are used in numerous chemical processes. The consequences of electrostatic effects on reactivity and physical properties, however, are largely unknown. In this work, we report the results of negative ion photoelectron spectra of nine isomeric pyridinium dicarboxylate zwitterions and three nonzwitterionic methoxycarbonylpyridine carboxylate isomers (-O2CPyrCO2CH3). Information about the intramolecular electrostatic interactions was directly obtained from the photoelectron spectra. The adiabatic and vertical detachment energies were measured and understood in terms of intramolecular Coulombic forces. Calculations at the B3LYP and CCSD(T) level were performed and compared to the experimental electron binding energies. Structures, relative stabilities, and the electron detachment sites also were obtained from the calculations.
HISTONE LYSINE DEMETHYLASE INHIBITORS
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Page/Page column 78, (2010/04/30)
The invention provides a compound which is an iV-oxalylglycine derivative of formula (I): a hydroxamic acid derivative of formula (II): or a heteroaryl derivative of fomula (III): wherein n; Z1; Z2; Y1; Y2; A; p; X1; X2; m; R4; B; R5; R6; R7; R8; R9; X3; R10; R11 and R12 are as defined herein, or a pharmaceutically acceptable salt thereof. These compounds are inhibitors of the human 2-oxoglutarate-dependant JMJD2 subfamily of histone demethylases, in particular JMJD2E. Such inhibitors are useful in changing the epigenetic state of cells resulting in the inhibition / activation of chromatin remodelling, multiple gene activation / deactivation, and in treating cancer and other conditions characterised by undesirable cellular proliferation, and psychiatric disorders including depression.
CYANOPHENYL DERIVATIVES
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, (2008/06/13)
This application relates to a piperazino-substituted novel cyanophenyl derivative in which a substituted carbamoyl or substituted sulfamoyl group having an aryl, heterocyclic or the like group that may have a substituent group is bonded to one nitrogen atom on the piperazine ring. The compound of this application has an anti-androgen action and is useful in preventing or treating prostatic cancer, benign prostatic hyperplasia and the like diseases.
