1185303-13-2Relevant articles and documents
Discovery of potent and selective inhibitors of the mammalian target of rapamycin (mTOR) kinase
Nowak, Pawel,Cole, Derek C.,Brooijmans, Natasja,Bursavich, Matthew G.,Curran, Kevin J.,Ellingboe, John W.,Gibbons, James J.,Hollander, Irwin,Hu, YongBo,Kaplan, Joshua,Malwitz, David J.,Toral-Barza, Lourdes,Verheijen, Jeroen C.,Zask, Arie,Zhang, Wei-Guo,Yu, Ker
experimental part, p. 7081 - 7089 (2010/04/29)
The mammalian target of rapamycin (mTOR) is a central regulator of cell growth, metabolism, and angiogenesis and an emerging target in cancer research. High throughput screening (HTS) of our compound collection led to the identification of 3-(4-morpholin-4-yl-1-piperidin-4-yl-1H-pyrazolo[3,4-d] pyrimidin-6-yl)phenol (5a), a modestly potent and nonselective inhibitor of mTOR and phosphoinositide 3-kinase (PI3K). Optimization of compound 5a, employing an mTOR homology model based on an X-ray crystal structure of closely related PI3Kγ led to the discovery of 6-(1H-indol-5-yl)-4-morpholin-4-yl-1-[1- (pyridin-3-ylmethyl)piperidin-4-yl]-1H-pyrazolo[3,4-d]pyrimidine (5u), a potent and selective mTOR inhibitor (mTOR IC50 = 9 nM; PI3Kα IC 50 = 1962 nM). Compound 5u selectively inhibited cellular biomarker of mTORC1 (P-S6K, P-4EBP1) and mTORC2 (P-AKT S473) over the biomarker of PI3K/PDK1 (P-AKT T308) and did not inhibit PI3K-related kinases (PIKKs) in cellular assays. These pyrazolopyrimidines represent an exciting new series of mTOR-selective inhibitors with potential for development for cancer therapy. 2009 American Chemical Society.
CHEMICAL COMPOUNDS
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Page/Page column 29, (2009/09/05)
The present invention provides compounds of formula (I) wherein R1, R2, R3, R4, Het and m are as defined in the description. The compounds of the present invention are modulators, especially antagonists, of the
Discovery of 4-morpholino-6-aryl-1H-pyrazolo[3,4-d]pyrimidines as highly potent and selective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR): Optimization of the 6-aryl substituent
Verheijen, Jeroen C.,Richard, David J.,Curran, Kevin,Kaplan, Joshua,Lefever, Mark,Nowak, Pawel,Malwitz, David J.,Brooijmans, Natasja,Toral-Barza, Lourdes,Zhang, Wei-Guo,Lucas, Judy,Hollander, Irwin,Ayral-Kaloustian, Semiramis,Mansour, Tarek S.,Yu, Ker,Zask, Arie
experimental part, p. 8010 - 8024 (2010/07/04)
Design and synthesis of a series of 4-morpholino-6-aryl-1H-pyrazolo[3,4-d] pyrimidines as potent and selective inhibitors of the mammalian target of rapamycin (mTOR) are described. Optimization of the 6-aryl substituent led to the discovery of inhibitors carrying 6-ureidophenyl groups, the first reported active site inhibitors of mTOR with subnanomolar inhibitory concentrations. The data presented in this paper show that 6-arylureidophenyl substituents led to potent mixed inhibitors of mTOR and phosphatidylinositol 3-kinase α (PI3K-α), whereas 6-alkylureidophenyl appendages gave highly selective mTOR inhibitors. Combination of 6-alkylureidophenyl groups with 1-carbamoylpiperidine substitution resulted in compounds with subnanomolar IC50 against mTOR and greater than 1000-fold selectivity over PI3K-α. In addition, structure based drug design resulted in the preparation of several 6-arylureidophenyl-1H-pyrazolo[3,4-d]pyrimidines, substituted in the 4-position of the arylureido moiety with water solubilizing groups. These compounds combined potent mTOR inhibition (IC50501 nM). 2009 American Chemical Society.