Table 3. Inhibition of CHK1 and CHK2 by Imidazo[4,5-c]pyridines and Isoquinolines.
IC50 determined in DELFIA.(33) Mean of two independent determinations; individual values in parentheses. Standard inhibitor staurosporine gave CHK1 IC50 = 2.1 (±1.8) nM and CHK2 IC50 = 27 (±8) nM.
LE = [−1.4 log10(IC50 (M))]/(number of heavy atoms).(34)
Not determined.
Mean (±SD) of at least three independent determinations.
Single determination.
Poor solubility gave variability for this analogue in this assay.