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. Author manuscript; available in PMC: 2022 Jul 22.
Published in final edited form as: J Med Chem. 2021 Jul 1;64(14):10333–10349. doi: 10.1021/acs.jmedchem.1c00789

Table 4.

Analysis of covalent complex formation of menin inhibitors with recombinant human menin protein by mass spectrometry.

Compound Incubation time with menin protein

10 minutes 30 minutes 1 hr overnight

% of menin covalent complex

19 36.9% 83.4% 85.4% 90.9%
20 24.1% 40.9% 59.4% 81.5%
21 0% 0% 0% 27.0%
22 8.8% 27.9% 37.4% 93.1%
23 9.8% 22.6% 40.5% 90.0%
24 (M-1121) 27% 59% 66% 100%
25 0% 0% 0% 45.1%
26 0% 0% 0% 0%