897445-61-3Relevant academic research and scientific papers
Optimizing small molecule inhibitors of calcium-dependent protein kinase 1 to prevent infection by toxoplasma gondii
Lourido, Sebastian,Zhang, Chao,Lopez, Michael S.,Tang, Keliang,Barks, Jennifer,Wang, Qiuling,Wildman, Scott A.,Shokat, Kevan M.,Sibley, L. David
, p. 3068 - 3077 (2013)
Toxoplasma gondii is sensitive to bulky pyrazolo [3,4-d] pyrimidine (PP) inhibitors due to the presence of a Gly gatekeeper in the essential calcium dependent protein kinase 1 (CDPK1). Here we synthesized a number of new derivatives of 3-methyl-benzyl-PP (3-MB-PP, or 1). The potency of PP analogues in inhibiting CDPK1 enzyme activity in vitro (low nM IC50 values) and blocking parasite growth in host cell monolayers in vivo (low μM EC 50 values) were highly correlated and occurred in a CDPK1-specific manner. Chemical modification of the PP scaffold to increase half-life in the presence of microsomes in vitro led to identification of compounds with enhanced stability while retaining activity. Several of these more potent compounds were able to prevent lethal infection with T. gondii in the mouse model. Collectively, the strategies outlined here provide a route for development of more effective compounds for treatment of toxoplasmosis and perhaps related parasitic diseases.
Beyond U0126. Dianion chemistry leading to the rapid synthesis of a series of potent MEK inhibitors
Wityak, John,Hobbs, Frank W.,Gardner, Daniel S.,Santella III, Joseph B.,Petraitis, Joseph J.,Sun, Jung-Hui,Favata, Margaret F.,Daulerio, Andrea J.,Horiuchi, Kurumi Y.,Copeland, Robert A.,Scherle, Peggy A.,Jaffe, Bruce D.,Trzaskos, James M.,Magolda, Ronald L.,Trainor, George L.,Duncia, John V.
, p. 1483 - 1486 (2007/10/03)
Employing phenylmalonitrile dianion chemistry, a large number of analogues of MEK inhibitor lead SH053 (IC50=140 nM) were rapidly synthesized leading to single digit nM inhibitors, displaying submicromolar AP-1 transcription inhibition in COS-7 cells. Compound 41, exhibiting a MEK IC 50=12 nM showed ip activity in a TPA-induced ear edema model with an ED50=5 mg/kg.
