clk 1

CLK1-IN-3 是一种+具有选择性和高效的性 Clk1 抑制剂，其 IC50 为 5 nM，比对 Dyrk1A 的亲和力高300对倍。CLK1-IN-3 对 Clk2 和 Clk4 也显示出高效的抑制作用，IC50 值分别为 42 和 108 nM。CLK1-IN-3 在体外有效诱导自噬 (autophagy)，可用于预防和人治疗急性肝损伤 (ALI)。

WAY-322243 具有抗菌抗炎活性，对 CLK-1 有抑制作用，可用于研究阿尔茨海默症。

CLK1 2-IN-3(Cpd-3) 是一种具有高效性和选择性的 CLK1 和 CLK2 抑制剂，抗增殖活性，抑制 CLK1、CLK2、SRPK1、SRPK2、SRPK3 的 的活性。CLK1 2-IN-3 可诱导核斑点扩大，可诱导S6K pre-mRNA选择性剪接和随后抑制多种癌细胞类型细胞生长。

CLK1 2-IN-1 is a CLK1 and CLK2 inhibitor and it also inhibits SRPK1 and SRPK2.

CLK1-IN-1 is a potent and selective inhibitor of the Cdc2-like kinase 1 (CLK1; IC50: 2 nM).

CLK1-IN-2 是代谢稳定的Clk1抑制剂。CLK1-IN-2 对 Clk1 具有选择性，IC50值为 1.7 nM。CLK1-IN-2 可用于肿瘤、杜氏肌营养不良症和病毒感染如HIV-1和流感的研究。

CLK1 4-IN-1 (compound 31) is a highly potent and selective inhibitor of Clk1 and Clk4, with IC50 values of 9.7 nM and 6.6 nM, respectively. It effectively inhibits the growth of T24 cancer cells, with a GI50 value of 1.1 μM. CLK1 4-IN-1 has shown promising potential as an anticancer research tool [1].

Ipivivint, a first-in-class, orally active and potent CDC-like kinase (CLK) inhibitor, inhibits CLK1 (IC50=1.4 μM), CLK2 (IC50=0.002 μM) and CLK3 (IC50=0.022 μM). Ipivivint reduces Wnt pathway signaling gene expression through inhibiting CLK activity and serine and arginine rich splicing factor (SRSF) phosphorylation and disrupting spliceosome activity. Ipivivint can be used for the research of cancer[1]. Ipivivint (SW480 cells; 0.01~10 μM; 1 hour) potently inhibits SRSF5/6 phosphorylation[1].Ipivivint (SW480 cells; 0.03 μM~3 μM; 48 hour) induced apoptosis[1]..Ipivivint (HEK-293T cells; 0.03 μM~3 μM; 1 hour) inhibits Wnt/β-catenin signaling induced by Wnt3a[1].Ipivivint (SW480 cells; 0.3~10 μM; 6 hour) increases nuclear speckle enlargement[1].Ipivivint (SW480 cells; 0.3~3μM; 24hours) significantly decreases expression of Wnt target genes (AXIN2, LEF1, MYC, and TCF7) and TCF7L2. SM08502 (SW480 cells; 0.03~3μM; 24hours) inhibits cytoplasmic or nuclear fractions protein expression. Ipivivint (NCI-N87 cells) inhibits proliferation[1].Ipivivint strongly inhibits Wnt pathway signaling activity (EC50 = 0.046 μM) in SW480 colon cancer cells[1]. Ipivivint (25 mg/kg; p.o.) potently inhibits tumor SRSF6 phosphorylation[1]. [1]. Tam BY, et al. The CLK inhibitor SM08502 induces anti-tumor activity and reduces Wnt pathway gene expression in gastrointestinal cancer models. Cancer Lett. 2020;473:186-197.

Potent and selective CLK inhibitor (IC50 values are 28, 88 and 510 nM for CLK4, 1 and 2, respectively). Exhibits no significant activity at CLK3, DYRK, CDK or GSK3 at a concentration of 10 μM. Inhibits growth of a range of cancer cell lines in vitro at subnanomolar concentrations. Walter et al (2018) Molecular structures of cdc2-like kinases in complex with a new inhibitor chemotype. PLoS One 13 e0196761 PMID:29723265

Leucettinib-92（化合物92）作为DYRK CLK激酶家族的抑制剂，展现出对多种激酶具有不同程度的抑制活性，IC50s依次为CLK1 147 nM、CLK2 39 nM、CLK4 5.2 nM、CLK3 0.8 μM、DYRK1A 124 nM、DYRK1B 204 nM、DYRK2 0.16 μM、DYRK3 1.0 μM、DYRK4 0.52 μM、GSK3 2.78 μM。