RKI-1447

• CAT Number: I001308
• CAS Number: 1342278-01-6
• Molecular Formula: C16H14N4O2S
• Molecular Weight: 326.37
• Purity: ≥95%
• Synonyms: 1-[(3-hydroxyphenyl)methyl]-3-(4-pyridin-4-yl-1,3-thiazol-2-yl)urea
• InChI: InChI=1S/C16H14N4O2S/c21-13-3-1-2-11(8-13)9-18-15(22)20-16-19-14(10-23-16)12-4-6-17-7-5-12/h1-8,10,21H,9H2,(H2,18,19,20,22)
• InChIKey: GDVRVPIXWXOKQO-UHFFFAOYSA-N
• SMILES: C1=CC(=CC(=C1)O)CNC(=O)NC2=NC(=CS2)C3=CC=NC=C3

RKI-1447 is a potent small molecule inhibitor of ROCK1 and ROCK2 with IC50 values of 14.5 nM and 6.2 nM, respectively.
RKI-1447 is a Type I kinase inhibitor that binds the ATP binding site through interactions with the hinge region and the DFG motif. RKI-1447 suppresses phosphorylation of the ROCK substrates mLC-2 and MYPT-1 in human cancer cells, but has no effect on the phosphorylation levels of the AKT, MEK and S6 kinase at concentrations as high as 10 μM. RKI-1447 is also highly selective at inhibiting ROCK-mediated cytoskeleton re-organization. RKI-1447 inhibits migration, invasion and anchorage-independent tumor growth of breast cancer cells[1].
RKI-1447 is highly effective at inhibiting the outgrowth of mammary tumors in a transgenic mouse model. RKI-1447 inhibits mammary tumor growth by 87% and on average the mammary tumors from RKI-1447 treated mice are 7.7 fold smaller compared to those tumors from mice treated with the vehicle control[1].

Reference

[1]. Patel RA, et al. RKI-1447 is a potent inhibitor of the Rho-associated ROCK kinases with anti-invasive and antitumor activities in breast cancer. Cancer Res. 2012 Oct 1;72(19):5025-34.
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