146062-49-9Relevant academic research and scientific papers
The development of improved syntheses of PPARγ-sparing, insulin sensitizing thiazolidinedione-ketones
Tanis, Steven P.,Colca, Jerry R.,Parker, Timothy T.,Artman, Gerald D.,Larsen, Scott D.,Gadwood, Robert C.,Zeller, James R.
, (2019/07/30)
Ketones 2 (MSDC-0160) and 3 (MSDC-0602) had been selected for clinical development, however their initial syntheses were considered suboptimal for application deep into clinical trials. Difficulties ranging from the nature of the starting material, alcohol oxidation problems, epoxide opening regioisomeric issues, and endgame ketone redox problems had been encountered. Direct ketone introduction/maintenance was desired for maximum efficiency and convergence was found to be critically dependent upon the acidity of the nucleophilic species (13, 18) and the use of pre- or post-alkylative oximino-ether/oxime protection (vide infra). Improvements in overall yield for the syntheses of 2 (MSDC-0160) and 3 (MSDC-0602) from 20% (2) and 31% (3) respectively, to 44% (2) and 59% (3) were realized.
5-DEUTERO-2,4-THIAZOLIDINEDIONE DERIVATIVES AND COMPOSITIONS COMPRISING AND METHODS OF USING THE SAME
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Paragraph 0374; 0375; 0376, (2014/09/30)
The invention provides 5-deuterium-enriched 2,4-thiazolidinediones (e.g., 5-[4-[2-(5-ethyl-2-pyridyl)-2-oxoethoxy]benzyl]-5-deutero-thiazolidine-2,4-dione), deuterated derivatives thereof, stereoisomers thereof, pharmaceutically acceptable salt forms thereof, and methods of treatment using the same.
SYNTHESIS FOR THIAZOLIDINEDIONE COMPOUNDS
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Page/Page column 34-35, (2012/03/09)
The present invention provides novel methods for synthesizing PPARgamma sparing compounds, e.g., thiazolidinediones, that are useful for preventing and/or treating metabolic disorders such as diabetes, obesity, hypertension, and inflammatory diseases.
POLYMORPHS OF 5-(4-(2-(5-ETHYLPYRIDIN-2-YL)-2-OXOETHOXY)BENZYL)-1,3-THIAZOLIDINE-2,4-DIONE (MITOGLITAZONE)
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Page/Page column 49, (2011/02/24)
The present invention relates to novel polymorphs of 5-(4-(2-(5-ethylpyridin-2-yl)-2-oxoethoxy) benzyl)-l,3-thiazolidine-2,4-dione of formula (I) and processes for the preparation thereof and pharmaceutical compositions comprising the novel crystalline po
Process development and scale-up of the potential thiazolidinedione antidiabetic candidate PNU-91325
Carpenter, Donald E.,Imbordino, Rick J.,Maloney, Mark T.,Moeslein, Jeffery A.,Reeder, Michael R.,Scott, Allen
, p. 721 - 728 (2013/09/06)
An efficient six-step synthesis has been developed for the preparation of the thiazolidinedione analogue PNU-91325 (3) from the commercially available olefin 12. This process involves a novel epoxide ring opening with a deactivated phenol under phase-transfer conditions. Significant improvements were made in the oxidation of a secondary alcohol to the ketone and the 1,4-reduction of an enone from a previous process. Overall, this route allows for the preparation of PNU-91325 in 25% yield.
Synthesis and biological activity of metabolites of the antidiabetic, antihyperglycemic agent pioglitazone
Tanis, Steven P.,Parker, Timothy T.,Colca, Jerry R.,Fisher, Roberta M.,Kletzein, Rolf F.
, p. 5053 - 5063 (2007/10/03)
Pioglitazone (5-(4-(2-(5-ethyl-2-pyridyl)ethoxy)benzyl)-2,4- thiazolidinedione, 2) is a prototypical antidiabetic thiazolidinedione that had been evaluated for possible clinical development. Metabolites 6-9 have been identified after dosing of rats and dogs. Ketone 10 has not yet been identified as a metabolite but has been added to the list as a putative metabolite by analogy to alcohol 6 and ketone 7. We have developed improved syntheses of pioglitazone (2) metabolites 6-9 and the putative metabolite ketone 10. These entities have been compared in the KKA(y) mouse model of human type-II diabetes to pioglitazone (2). Ketone 10 has proven to be the most potent of these thiazolidinediones in this in vivo assay. When 6-10 were compared in vitro in the 3T3-L1 cell line to 2, for their ability to augment insulin-stimulated lipogenesis, 10 was again the most potent compound with 6, 7, and 9 roughly equivalent to 2. These data suggest that metabolites 6, 7, and 9 are likely to contribute to the pharmacological activity of pioglitazone (2), as had been previously reported for ciglitazone (1).
Thiazolidinedione derivatives, production and use thereof
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, (2008/06/13)
A thiazolidinedione compound of the formula STR1 wherein X,Q are as defined in the specification. The compounds are used for treating diabetes.
