Abstract
We report the synthesis of (2 E,5 E)-4-oxoheptadienedioic acid and (2 E)-4-oxoheptenedioic acid and evaluation of both diester and diacid analogues as inhibitors of bacterial dihydrodipicolinate synthase. Enzyme kinetic studies allowed the determination of second-order rate constants of inactivation; and substrate co-incubation studies have shown the inhibitors act at the active-site. Mass spectrometric analyses have further explored the enzyme–inhibitor interaction and determined the sites of enzyme alkylation.
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