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. 2022 Dec 19;66(1):149–169. doi: 10.1021/acs.jmedchem.2c01658

Table 6. SAR of C32 Modifications and Active-Site Inhibitors.

graphic file with name jm2c01658_0017.jpg

entry compound no. PEG repeats R active-site inhibitor (R1) pS6K IC50 (nM) p4EBP1 IC50 (nM) pAKT IC50 (nM) selectivity
1 35 8 OMe MLN 0.24 1.3 13 10.0
2 36 8 OH   0.49 1.4 8.4 6.0
3 37 8 OMe “rigid MLN” 0.17 1.6 35 21.9
4 38 (RMC-5552) 8 OH   0.14 0.48 19 39.6
5 39 8 OMe XL388 0.19 0.97 35 36.1
6 40 (RMC-6272) 8 OH   0.14 0.44 12 27.3