- Synthesis and Evaluation of PPARδAgonists That Promote Osteogenesis in a Human Mesenchymal Stem Cell Culture and in a Mouse Model of Human Osteoporosis
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We synthesized a directed library of compounds to explore the structure-activity relationships of peroxisome proliferator-activated receptor δ(PPARδ) activation relative to mesenchymal stem cell (MSC) osteogenesis. Our scaffold used para-substituted cinnamic acids as a polar headgroup, a heteroatom and heterocycle core connecting units, and substituted phenyl groups for the lipophilic tail. Compounds were screened for their ability to increase osteogenesis in MSCs, and the most promising were examined for subunit specificity using a quantitative PPAR transactivation assay. Six compounds were selected for in vivo studies in an ovariectomized mouse model of human postmenopausal osteoporosis. Four compounds improved bone density in vivo, with two (12d and 31a) having activity comparable to that of GW0742, a well-studied PPARδ-selective agonist. 31a (2-methyl-4-[N-methyl-N-[5-methylene-4-methyl-2-[4-(trifluoromethyl)phenyl]thiazole]]aminocinnamic acid) had the highest selectivity for PPARδcompared to other subtypes, its selectivity far exceeding that of GW0742. Our results confirm that PPARδis a new drug target for possible treatment of osteoporosis via in situ manipulation of MSCs.
- Kress, Brian J.,Kim, Dong Hyun,Mayo, Jared R.,Farris, Jeffery T.,Heck, Benjamin,Sarver, Jeffrey G.,Andy, Divya,Trendel, Jill A.,Heck, Bruce E.,Erhardt, Paul W.
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p. 6996 - 7032
(2021/05/29)
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- Synthesis of thiazole linked chalcones and their pyrimidine analogues as anticancer agents
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A series of nine novel thiazole linked chalcones, (E)-3-(4-methyl-2-(4(trifluoromethyl)phenyl)thiazol-5-yl)-1-phenylprop-2-en-1-one derivatives 7–15 were synthesized. To establish the structure–activity relationship (SAR), furthermore, the corresponding, ring-closed pyrimidine analogs 17–23 were synthesized. The derivatives thus obtained were evaluated for their anti-cancer activity against three genetically different colorectal cancer (CRC) cell lines. Thiazole derivatives 7, 9, and10 showed anti-cancer activity with GI50 values ranging from 0.19 to 100 μM. Importantly, compounds 7 and 10 outperformed the standard drug cisplatin in the tested cell lines and thus show promise for further optimization. Some of pyrimidine derivatives retain activity comparable to cisplatin in the HT-29 cell line, e.g. compounds 17 and 18 with IC50 of 25?μM, however, none of these compounds demonstrated improved antiproliferative activity as compared with the starting thiazole, thus the enone linker was critical for obtaining more active compounds in this series.
- Kesari, Chekrapani,Rama, Koteshwar Rao,Sedighi, Khwajanezrabodin,Stenvang, Jan,Bj?rkling, Fredrik,Kankala, Shravankumar,Thota, Niranjan
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supporting information
p. 1406 - 1416
(2021/02/22)
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- Design, synthesis and biological evaluation of novel thiazole-derivatives as mitochondrial targeting inhibitors of cancer cells
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Mitochondria are pivotal energy production sources for cells to maintain necessary metabolism activities. Targeting dysfunctional mitochondrial features has been a hotspot for mitochondrial-related disease researches. Investigation with cancerous mitochondrial metabolism is a continuing concern within tumor therapy. Herein, we set out to assess the anti-cancer activities of a novel family of TPP-thiazole derivatives based on our earlier research on mitochondrial targeting agents. Specifically, we designed and synthesized a series of TPP-thiazole derivatives and revealed by the MTT assay that most synthesized compounds effectively inhibited three cancer cell lines (HeLa, PC3 and MCF-7). After structure modifications, we explored the SAR relationships and identified the most promising compound R13 (IC50 of 5.52 μM) for further investigation. In the meantime, we performed ATP production assay to assess the selected compounds inhibitory effect on HeLa cells energy production. The results displayed the test compounds significantly restrained ATP production of cancer cells. Overall, we have designed and synthesized a series of compounds which exhibited significant cytotoxicity against cancer cells and effectively inhibited mitochondrial energy production.
- Dang, Xin,Lei, Shuwen,Luo, Shuhua,Hu, Yixin,Wang, Juntao,Zhang, Dongdong,Lu, Dan,Jiang, Faqin,Fu, Lei
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- Design, synthesis and Structure-activity relationship studies of new thiazole-based free fatty acid receptor 1 agonists for the treatment of type 2 diabetes
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The free fatty acid receptor 1 (FFA1/GPR40) has attracted interest as a novel target for the treatment of type 2 diabetes. Several series of FFA1 agonists including TAK-875, the most advanced compound terminated in phase III studies due to concerns about liver toxicity, have been hampered by relatively high molecular weight and lipophilicity. Aiming to develop potent FFA1 agonists with low risk of liver toxicity by decreasing the lipophilicity, the middle phenyl of TAK-875 was replaced by 11 polar five-membered heteroaromatics. Subsequently, systematic exploration of SAR and application of molecular modeling, leads to the identification of compound 44, which was an excellent FFA1 agonist with robustly hypoglycemic effect both in normal and type 2 diabetic mice, low risks of hypoglycemia and liver toxicity even at the twice molar dose of TAK-875. Meanwhile, two important findings were noted. First, the methyl group in our thiazole series occupied a small hydrophobic subpocket which had no interactions with TAK-875. Furthermore, the agonistic activity revealed a good correlation with the dihedral angle between thiazole core and the terminal benzene ring. These results promote the understanding of ligand-binding pocket and might help to design more promising FFA1 agonists.
- Li, Zheng,Qiu, Qianqian,Xu, Xue,Wang, Xuekun,Jiao, Lei,Su, Xin,Pan, Miaobo,Huang, Wenlong,Qian, Hai
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supporting information
p. 246 - 257
(2016/03/08)
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- ANALOGS OF PPARO AND 20-OH-PGE2, AND METHODS OF USING THE SAME
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Analogs of PPAR5 and analogs of 20-OH-PGE2, which are PPAR5 agonists and 20-OH-PGE2 antagonists, respectively, and methods of using the same for inducing osteogenesis or chondrogenesis, are disclosed.
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Paragraph 00129; 00130; 00143; 00144
(2014/10/04)
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- Discovery and structure-activity relationships of pyrrolone antimalarials
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In the pursuit of new antimalarial leads, a phenotypic screening of various commercially sourced compound libraries was undertaken by the World Health Organisation Programme for Research and Training in Tropical Diseases (WHO-TDR). We report here the detailed characterization of one of the hits from this process, TDR32750 (8a), which showed potent activity against Plasmodium falciparum K1 (EC50 ～ 9 nM), good selectivity (>2000-fold) compared to a mammalian cell line (L6), and significant activity against a rodent model of malaria when administered intraperitoneally. Structure-activity relationship studies have indicated ways in which the molecule could be optimized. This compound represents an exciting start point for a drug discovery program for the development of a novel antimalarial.
- Murugesan, Dinakaran,Mital, Alka,Kaiser, Marcel,Shackleford, David M.,Morizzi, Julia,Katneni, Kasiram,Campbell, Michael,Hudson, Alan,Charman, Susan A.,Yeates, Clive,Gilbert, Ian H.
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supporting information
p. 2975 - 2990
(2013/05/23)
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- Substituted 2-[(4-aminomethyl)phenoxy]-2-methylpropionic acid PPARα agonists. 1. Discovery of a novel series of potent HDLc raising agents
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The peroxisome proliferator activated receptors PPARα, PPARγ, and PPARδ are ligand-activated transcription factors that play a key role in lipid homeostasis. The fibrates raise circulating levels of high-density lipoprotein cholesterol and lower levels of triglycerides in part through their activity as PPARα agonists; however, the low potency and restricted selectivity of the fibrates may limit their efficacy, and it would be desirable to develop more potent and selective PPARα agonists. Modification of the selective PPARδ agonist 1 (GW501516) so as to incorporate the 2-aryl-2-methylpropionic acid group of the fibrates led to a marked shift in potency and selectivity toward PPARα agonism. Optimization of the series gave 25a, which shows EC50 = 4 nM on PPARα and at least 500-fold selectivity versus PPARγ and PPARγ. Compound 25a (GW590735) has been progressed to clinical trials for the treatment of diseases of lipid imbalance.
- Sierra, Michael L.,Beneton, Véronique,Boullay, Anne-Bénédict,Boyer, Thierry,Brewster, Andrew G.,Donche, Frédéric,Forest, Marie-Claire,Fouchet, Marie-Hélène,Gellibert, Fran?oise J.,Grillot, Didier A.,Lambert, Millard H.,Laroze, Alain,Le Grumelec, Christelle,Linget, Jean Michel,Montana, Valerie G.,Nguyen, Van-Loc,Nicodème, Edwige,Patel, Vipul,Penfornis, Annie,Pineau, Olivier,Pohin, Danig,Potvain, Florent,Poulain, Géraldine,Ruault, Cécile Bertho,Saunders, Michael,Toum, Jér?me,Xu, H. Eric,Xu, Robert X.,Pianetti, Pascal M.
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p. 685 - 695
(2007/10/03)
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- Synthesis of the PPARβ/δ-selective agonist GW501516 and C4-thiazole-substituted analogs
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Sequential, position-selective, Pd-catalyzed cross-coupling reactions of 2,4-dibromo-5-hydroxymethylthiazole provided the scaffold for the synthesis of GW501516, the most potent PPARβ/δ agonist yet described, and equally selective analogs at the thiazole-
- Pereira, Raquel,Gaudon, Claudine,Iglesias, Beatriz,Germain, Pierre,Gronemeyer, Hinrich,De Lera, Angel R.
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- PROCESS FOR PREPARING LIGANDS OF PPARDELTA AND THE INTERMEDIATE COMPOUNDS FOR PREPARING THE SAME
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The present invention provides a process for preparing thiazole derivatives of formula (I), that activate the delta subtype of the human Peroxisome Proliferator Activated Receptor (hPPAR δ ), and also provides compounds of formula (II), (IV), (X), (XI) and (XII), intermediate compounds for preparation of the above compounds of formula (I).
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Page/Page column 14-15
(2008/06/13)
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- (5- (2-PHENYL)-THIAZOL-5-YLMETHOXY)-INDOL-1-YL) -ACETIC ACID DERIVATIVES AND RELATED COMPOUNDS AS MODULATORS OF THE HUMAN PPAR-DELTA RECEPTOR FOR THE TREATMENT OF METABOLIC DISORDERS SUCH AS TYPE 2 DIABETES
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Disclosed are compounds having the structure of Formula (I) and pharmaceutically acceptable salts and solvates thereof [A]-[B]-[C] (I) wherein (a) [A] is [H]-[L]; wherein [H] represents a CCOH (or a hydrolyzable ester thereof) or tetrazole group [L] is: formula (II), b) [B] is a ring system selected from the group consisting of: e.g. formula (III); (IIIA), c) [C] is e.g. formula (IV); the other substituents and variables are defined in the claims; as modulators of the human PPAR-delta receptor for the treatment of metabolic disorders such as type 2 diabetes.
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Page/Page column 115-116
(2008/06/13)
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- 1,3,4-OXADIAZOL-2-ONES AS PPAR DELTA MODULATORS AND THEIR USE THEREOF
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The present invention is directed to 1, 3, 4-oxadiazolones, compounds of formula (I) and their pharmaceutically acceptable salts stereoisomers, tautomers, or solvates thereof. Novel compounds include those of formula (I), in which radicals are as defined
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Page/Page column 42
(2008/06/13)
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- Oxadiazolones, processes for their preparation and their use as pharmaceuticals
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The invention relates to oxadiazolones and to their physiologically acceptable salts and physiologically functional derivatives showing PPARdelta agonist activity. What is described are compounds of the formula I, in which the radicals are as defined, and
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Page/Page column 15
(2008/06/13)
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- HETEROCYCLIC COMPOUNDS AS MODULATORS OF PEROXISOME PROLIFERATOR ACTIVATED RECEPTORS, USEFUL FOR THE TREATMENT AND/OR PREVENTION OF DISORDERS MODULATED BY A PPAR
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The present invention is directed to a compound of formula (I), or a pharmaceutically acceptable salt, solvate, hydrate or stereoisomer thereof, which is useful in treating or preventing disorders mediated by a peroxisome proliferator activated receptor (PPAR) such as syndrome X, type II diabetes, hyperglycemia, hyperlipidemia, obesity, coagaulopathy, hypertension, arteriosclerosis, and other disorders related to syndrome X and cardiovascular diseases.
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Page/Page column 88
(2010/02/11)
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- Novel selective small molecule agonists for peroxisome proliferator-activated receptor δ (PPARδ) - Synthesis and biological activity
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We report the synthesis and biological activity of a new series of small molecule agonists of the human Peroxisome Proliferator-Activated Receptor δ (PPARδ). Several hits were identified from our original libraries containing lipophilic carboxylic acids. Optimization of these hits by structure-guided design led to 7k (GW501516) and 7l (GW0742), which shows an EC50 of 1.1 nM against PPARδ with 1000-fold selectivity over the other human subtypes.
- Sznaidman, Marcos L.,Haffner, Curt D.,Maloney, Patrick R.,Fivush, Adam,Chao, Esther,Goreham, Donna,Sierra, Michael L.,LeGrumelec, Christelle,Xu, H. Eric,Montana, Valerie G.,Lambert, Millard H.,Willson, Timothy M.,Oliver Jr., William R.,Sternbach, Daniel D.
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p. 1517 - 1521
(2007/10/03)
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- Compounds that modulate PPAR activity and methods of preparation
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This invention discloses compounds that alter PPAR activity. The invention also discloses pharmaceutically acceptable salts of the compounds, pharmaceutically acceptable compositions comprising the compounds or their salts, and methods of using them as therapeutic agents for treating or preventing hyperlipidemia and hypercholesteremia in a mammal. The present invention also discloses methods for making the disclosed compounds.
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- Materials and methods for the treatment of diabetes, hyperlipidemia, hypercholesterolemia, and atherosclerosis
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The subject invention provides pharmaceutical compounds useful in the treatment of Type II diabetes. These compounds are advantageous because they are readily metabolized by the metabolic drug detoxification systems. Particularly, thiazolidinedione analogs that have been designed to include esters within the structure of the compounds are provided. This invention is also drawn to methods of treating disorders, such as diabetes, comprising the administration of therapeutically effective compositions comprising compounds that have been designed to be metabolized by serum or intracellular hydrolases and esterases. Pharmaceutical compositions of the ester-containing thiazolidinedione analogs are also taught.
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Page 3; sheet 33
(2010/02/03)
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- PROCESS FOR PREPARING THIAZOLE DERIVATIVE AND THE INTERMEDIATE COMPOUNDS FOR PREPARING THE SAME
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The present invention provides a process for preparing thiazole derivatives of formula (XI), that activate the delta subtype of the human Peroxisome Proliferator Activated Receptor (hPPARδ), and also provides processes for compounds of formula (VI), (VII)
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- CHEMICAL COMPOUNDS
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A compound of formula (I) or a pharmaceutically acceptable salt, solvate, or hydrolysable ester thereof, wherein: (...).
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