Jr. Saltmarsh et al., Synthesis of fluorescent probes directed to the active site gorge of acetylcholinesterase, BIOORG MED, 10(14), 2000, pp. 1523-1526
Six organophosphorus compounds linked to fluorophore groups were prepared i
n an effort to selectively modify the active site of acetylcholinesterase a
nd deliver probes to the gorge region. Two compounds that vary by the lengt
h of a methylene (CH2) group, pyrene-SO2NH(CH2)(n)NHC(O)CH2CH2P(O)(OEt)(F)
(where n=2 or 3) were found to be potent, irreversible inhibitors of recomb
inant mouse AChE (K(i)congruent to 10(5) M-1 min(-1)). Size exclusion chrom
atography afforded a fluorescently-labeled cholinesterase conjugate. (C) 20
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