N-Cyclohexyl-4-[1-(1-piperazinyl)-2,6-naphthyridin-3-yl]-2-pyridinamine is a novel 2,6-naphthyridine identified by high throughput screen (HTS) as a dual protein kinase C/D (PKC/PKD) inhibitor[1].

CRT0066101 dihydrochloride is an effective and selective PKD inhibitor (IC50s: 1, 2.5 and 2 nM for PKD1, 2, and 3).

3-IN-PP1, a potent protein kinase D (PKD) inhibitor, exhibits pan-PKD inhibitory activity with IC50 values of 108 nM for PKD1, 94 nM for PKD2, and 108 nM for PKD3. Additionally, it serves as a broad-spectrum anticancer agent by inhibiting the growth of various tumor cells. 3-IN-PP1 is utilized in cancer research [1].

kb NB 142-70 is a selective protein kinase D (PKD) inhibitor (IC50 values are 28.3, 58.7 and 53.2 nM for PKD1, 2 and 3 respectively).