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. Author manuscript; available in PMC: 2022 Mar 15.
Published in final edited form as: Eur J Med Chem. 2021 Jan 31;214:113232. doi: 10.1016/j.ejmech.2021.113232

Table 2.

CDK2/cyclin A inhibitory activities of C4/C5-modified analogues

graphic file with name nihms-1668598-t0004.jpg
Compound R1-R3 IC50 (μM)
19 R1= -(CO)-, R2= -NH-, R3=H > 1000
20 R1= -NH-, R2= -(CO)-, R3=H > 1000
21 R1= -NH-, R2= -(CO)-, R3=Br 12 ± 3