Table 1.

Chemical structures of CK1 inhibitors included in the screening phase, their IC₅₀ against CK1 δ/ε, and the percentage of activity of the kinase ULK1.

Compound	Structure	Cellular Assay	CK1δ/ε IC50 (nM) [18]	ULK1 %Inhn@10 μM
IGS2.7			23/840	59 [18]
IGS3.27			47/750	11.4
IGS3.4			83/880	9