5EI2

Rapid Discovery of Pyrido[3,4-d]pyrimidine Inhibitors of Monopolar Spindle kinase 1 (MPS1) Using a Structure-Based Hydridization Approach

Summary for 5EI2

• Entry DOI: 10.2210/pdb5ei2/pdb
• Related: 5EH0
• Descriptor: Dual specificity protein kinase TTK, ~{N}-(2,4-dimethoxyphenyl)-8-(1-methylpyrazol-4-yl)pyrido[3,4-d]pyrimidin-2-amine (3 entities in total)
• Functional Keywords: spindle assembly checkpoint (sac), oncology target pyrido[3, 4-d]pyrimidine based inhibitors selective against mps1, transferase
• Biological source: Homo sapiens (Human)
• Total number of polymer chains: 1
• Total formula weight: 36477.64

Authors

Innocenti, P.,Woodward, H.L.,Solanki, S.,Naud, N.,Westwood, I.M.,Cronin, N.,Hayes, A.,Roberts, J.,Henley, A.T.,Baker, R.,Faisal, A.,Mak, G.,Box, G.,Valenti, M.,De Haven Brandon, A.,O'Fee, L.,Saville, J.,Schmitt, J.,Burke, R.,van Montfort, R.L.M.,Raymaud, F.I.,Eccles, S.A.,Linardopoulos, S.,Blagg, J.,Hoelder, S. (deposition date: 2015-10-29, release date: 2016-04-20, Last modification date: 2024-05-08)

Primary citation

Innocenti, P.,Woodward, H.L.,Solanki, S.,Naud, S.,Westwood, I.M.,Cronin, N.,Hayes, A.,Roberts, J.,Henley, A.T.,Baker, R.,Faisal, A.,Mak, G.W.,Box, G.,Valenti, M.,De Haven Brandon, A.,O'Fee, L.,Saville, H.,Schmitt, J.,Matijssen, B.,Burke, R.,van Montfort, R.L.,Raynaud, F.I.,Eccles, S.A.,Linardopoulos, S.,Blagg, J.,Hoelder, S.
Rapid Discovery of Pyrido[3,4-d]pyrimidine Inhibitors of Monopolar Spindle Kinase 1 (MPS1) Using a Structure-Based Hybridization Approach.
J.Med.Chem., 59:3671-3688, 2016

PubMed Abstract: Monopolar spindle 1 (MPS1) plays a central role in the transition of cells from metaphase to anaphase and is one of the main components of the spindle assembly checkpoint. Chromosomally unstable cancer cells rely heavily on MPS1 to cope with the stress arising from abnormal numbers of chromosomes and centrosomes and are thus more sensitive to MPS1 inhibition than normal cells. We report the discovery and optimization of a series of new pyrido[3,4-d]pyrimidine based inhibitors via a structure-based hybridization approach from our previously reported inhibitor CCT251455 and a modestly potent screening hit. Compounds in this novel series display excellent potency and selectivity for MPS1, which translates into biomarker modulation in an in vivo human tumor xenograft model.

PubMed: 27055065
DOI: 10.1021/acs.jmedchem.5b01811

Experimental method

X-RAY DIFFRACTION (2.67 Å)