174180-85-9Relevant academic research and scientific papers
Structure-activity relationships of pyrazole derivatives as potential therapeutics for immune thrombocytopenias
Purohit, Meena K.,Chakka, Sai Kumar,Scovell, Iain,Neschadim, Anton,Bello, Angelica M.,Salum, Norue,Katsman, Yulia,Bareau, Madeleine C.,Branch, Donald R.,Kotra, Lakshmi P.
, p. 2739 - 2752 (2014/05/06)
Idiopathic or immune thrombocytopenia (ITP) is a serious clinical disorder involving the destruction of platelets by macrophages. Small molecule therapeutics are highly sought after to ease the burden on current therapies derived from human sources. Earlier, we discovered that dimers of five-membered heterocycles exhibited potential to inhibit phagocytosis of human RBCs by macrophages. Here, we reveal a structure-activity relationship of the bis-pyrazole class of molecules with -C-C-, -C-N- and -C-O- linkers, and their evaluation as inhibitors of phagocytosis of antibody-opsonized human RBCs as potential therapeutics for ITP. We have uncovered three potential candidates, 37, 47 and 50, all carrying a different linker connecting the two pyrazole moieties. Among these compounds, hydroxypyrazole derivative 50 is the most potent compound with an IC50 of 14 ± 9 μM for inhibiting the phagocytosis of antibody-opsonized human RBCs by macrophages. None of the compounds exhibited significant potential to induce apoptosis in peripheral blood mononuclear cells (PBMCs). Current study has revealed specific functional features, such as up to 2-atom spacer arm and alkyl substitution at one of the N1 positions of the bivalent pyrazole core to be important for the inhibitory activity.
PYRAZOLE DERIVATIVES AND THEIR USES THEREOF
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, (2014/09/29)
The present disclosure relates to a compound of formula (I) or a pharmaceutically acceptable salt thereof; wherein U, R1, R2, R3 and Q are as defined herein. The disclosure also provides a method for treating or preventing a method for the prevention, treatment and/or alleviation of one or more autoimmune or alloimmune disease, pharmaceutical compositions and combination comprising a therapeutically effective amount of a compound, as defined herein.
COMPOSITIONS AND METHODS FOR INHIBITION OF THE JAK PATHWAY
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, (2008/06/13)
The invention encompasses compounds having formula (I-V) and the compositions and methods using these compounds in the treatment of conditions in which modulation of the JAK pathway or inhibition of JAK kinases, particularly JAK3, may be therapeutically useful.
CCK or gastrin modulating benzo ?b!?1,4! diazepines derivatives
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, (2008/06/13)
Benzo?b!?1,4!diazepine compounds of formula (I), where R1 is selected from C1 C6 alkyl, C3 -C6 cycloalkyl, phenyl, or substituted phenyl; R2 is selected from C3 -C6 alkyl, C3 C6 cycloalkyl, C3 -C6 alkenyl, benzyl, phenylC1 -C3 alkyl of substituted phenyl; or NR1 R2 together form 1,2,3,4-tetrahydroquinoline or benzazepine, mono-, di-, or trisubstituted independently with C1-6 alkyl C1-6 alkoxy or halogen substituents; p is an integer 0 or 1; q is an integer 0 or 1; r is an integer 0 or 1; t is an integer 0 or 1, provided that when r is 0 then t is 0; R3, R5, and R6 are independently hydrogen or C1-6 alkyl; R4 is C1-6 alkyl or C1-6 alkenyl; R7 is selected from the group consisting of hydrogen, C1-6 alkyl, C1-6 cycloalkyl, C1-6 alkenyl, phenyl, substituted phenyl, napthyl, heteroaryl, substituted heteroaryl, bicycloheteroaryl or substituted bicycloheteroaryl; or NR6 R7 together form a saturated 5,6, or 7 membered ring optionally interrupted by 1,2,3 or 4 N, S or O heteroatoms, with the proviso that any two O or S atoms are not bonded to each other, m is an integer selected from the group of 0, 1, 2, 3 or 4; R8 and R9 are selected from a variety of substituents; Z is hydrogen or halogen; novel intermediates, a pharmaceutical composition for treating obesity, gall bladder stasis, disorders of pancreatic secretion, methods for such treatment and processes for preparing compounds of formula (I).
Optimization of 3-(1H-Indazol-3-ylmethyl)-1,5-benzodiazepines as potent, orally active CCK-A agonists
Henke, Brad R.,Aquino, Christopher J.,Birkemo, Larry S.,Croom, Dallas K.,Dougherty Jr., Robert W.,Ervin, Gregory N.,Grizzle, Mary K.,Hirst, Gavin C.,James, Michael K.,Johnson, Michael F.,Queen, Kennedy L.,Sherrill, Ronald G.,Sugg, Elizabeth E.,Suh, Edward M.,Szewczyk, Jerzy W.,Unwalla, Rayomand J.,Yingling, Jeff,Willson, Timothy M.
, p. 2706 - 2725 (2007/10/03)
We previously described a series of 3-(1H-indazol-3-ylmethyl)-1,5- benzodiazepine CCK-A agonists exemplified by compound 1 (GW 5823), which is the first reported binding selective CCK-A full agonist demonstrating oral efficacy in a rat feeding model. In this report we describe analogs of compound 1 designed to explore changes to the CS and N1 pharmacophores and their effect on agonist activity and receptor selectivity. Agonist efficacy in this series was affected by stereoelectronic factors within the C3 moiety. Binding affinity for the CCK-A vs CCK-B receptor showed little dependence on the structure of the C3 moiety but was affected by the nature of the second substituent at CS. Structure-activity relationships at the N1- anilidoacetamide 'trigger' moiety within the C3 indazole series were also investigated. Both agonist efficacy and binding affinity within this series were modulated by variation of substituents on the Nl-anilidoacetamide moiety. Evaluation of several analogs in an in vivo mouse gallbladder emptying assay revealed compound 1 to be the most potent and efficacious of all the analogs tested. The pharmacokinetic and pharmacodynamic profile of 1 in rats is also discussed.
