Synthesis and Biological Evaluation of Novel Gramicidin S Analogues
作者:Adriaan Willem Tuin、Dimitrios Konstantinos Palachanis、Annelies Buizert、Gijsbert Marnix Grotenbreg、Emile Spalburg、Albert J. de Neeling、Roos H. Mars-Groenendijk、Daan Noort、Gijsbert A. van der Marel、Herman S. Overkleeft、Mark Overhand
DOI:10.1002/ejoc.200900460
日期:2009.9
The synthesis of three new analogues of the cyclic cationic antimicrobial peptide Gramicidin S is described. These derivatives contain a modified turn region in which the DPhe-Pro motif has been replaced by a constrained furanoid sugar aminoacid or a flexible linear aminoethoxy acetic acidmoiety. Structural analysis revealed conformational changes in the modified turn region compared to GS. The biological
Discovery of IPN60090, a Clinical Stage Selective Glutaminase-1 (GLS-1) Inhibitor with Excellent Pharmacokinetic and Physicochemical Properties
作者:Michael J. Soth、Kang Le、Maria Emilia Di Francesco、Matthew M. Hamilton、Gang Liu、Jason P. Burke、Chris L. Carroll、Jeffrey J. Kovacs、Jennifer P. Bardenhagen、Christopher A. Bristow、Mario Cardozo、Barbara Czako、Elisa de Stanchina、Ningping Feng、Jill R. Garvey、Jason P. Gay、Mary K. Geck Do、Jennifer Greer、Michelle Han、Angela Harris、Zachary Herrera、Sha Huang、Virginia Giuliani、Yongying Jiang、Sarah B. Johnson、Troy A. Johnson、Zhijun Kang、Paul G. Leonard、Zhen Liu、Timothy McAfoos、Meredith Miller、Pietro Morlacchi、Robert A. Mullinax、Wylie S. Palmer、Jihai Pang、Norma Rogers、Charles M. Rudin、Hannah E. Shepard、Nakia D. Spencer、Jay Theroff、Qi Wu、Alan Xu、Ju Anne Yau、Giulio Draetta、Carlo Toniatti、Timothy P. Heffernan、Philip Jones
DOI:10.1021/acs.jmedchem.0c01398
日期:2020.11.12
Inhibition of glutaminase-1 (GLS-1) hampers the proliferation of tumor cells reliant on glutamine. Known glutaminase inhibitors have potential limitations, and in vivo exposures are potentially limited due to poor physicochemical properties. We initiated a GLS-1 inhibitor discovery program focused on optimizing physicochemical and pharmacokinetic properties, and have developed a new selective inhibitor, compound 27 (IPN60090), which is currently in phase 1 clinical trials. Compound 27 attains high oral exposures in preclinical species, with strong in vivo target engagement, and should robustly inhibit glutaminase in humans.