1,3-Phenylene bis(ketoacid) derivatives as inhibitors of Escherichia coli dihydrodipicolinate synthase
摘要:
Dihydrodipicolinate synthase is a key enzyme in the lysine biosynthesis pathway that catalyzes the condensation of pyruvate and aspartate semi-aldehyde. A series of phenolic ketoacid derivatives that mimic the proposed enzymatic intermediate were designed as potential inhibitors of this enzyme and were synthesized from simple precursors. The ketoacid derivatives were shown to act as slow and slow-tight binding inhibitors. Mass spectrometric experiments provided further evidence to support the proposed model of inhibition, demonstrating either an encounter complex or a condensation product for the slow and slow-tight binding inhibitors, respectively. (C) 2012 Elsevier Ltd. All rights reserved.
Quantum Interference in Mixed‐Valence Complexes: Tuning Electronic Coupling Through Substituent Effects
作者:Daniel P. Harrison、Robin Grotjahn、Masnun Naher、Seyed M. B. H. Ghazvini、Daniel M. Mazzucato、Marcus Korb、Stephen A. Moggach、Colin Lambert、Martin Kaupp、Paul J. Low
DOI:10.1002/anie.202211000
日期:2022.11.7
The degree of ground state electronic interaction in the mixed-valence complex [Cp*(dppe)RuC≡C}2(μ-1,3-C6H4)]+ can be tuned through the introduction of an OMe substituent to the bridging ligand. These effects are sensitive to the position of the substituent, and follow the same patterns as those predicted by quantum circuit rules for weakly coupled molecules in molecular junctions.