
Keywords: NBS، N-bromosuccinimide; AdoMet, S-adenosyl-l-methionine; ASA, aspartate semialdehyde; DCM, dichloromethane; FBDD, fragment-based drug discovery; HEPES, 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-sulfonic acid; NBS, N-bromosuccinimide; spASADH, Streptococcus pneumoniae aspartate