85553-54-4Relevant articles and documents
Site-Selective Switching Strategies to Functionalize Polyazines
Dolewski, Ryan D.,Fricke, Patrick J.,McNally, Andrew
supporting information, p. 8020 - 8026 (2018/06/01)
Many drug fragments and therapeutic compounds contain multiple pyridines and diazines. Developing site-selective reactions where specific C-H bonds can be transformed in polyazine structures would enable rapid access to valuable derivatives. We present a study that addresses this challenge by selectively installing a phosphonium ion as a versatile functional handle. Inherent factors that control site-selectivity are described along with mechanistically driven approaches for site-selective switching, where the C-+PPh3 group can be predictably installed at other positions in the polyazine system. Simple protocols, readily available reagents, and application to complex drug-like molecules make this approach appealing to medicinal chemists.
IMIDAZOTHIADIAZOLE AND IMIDAZOPYRIDAZINE DERIVATIVES AS PROTEASE ACTIVATED RECEPTOR 4 (PAR4) INHIBITORS FOR TREATING PLATELET AGGREGATION
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Paragraph 00132; 00134, (2013/11/18)
The present invention provides imidazothiadiazole compounds of Formula (I); Wherein W,Y, R0, R2, R4, Ra, Rb, X1, X2, X3 and X4 are as defined herein,, or a stereoisomer, tautomer, pharmaceutically acceptable salt, prodrug ester or solvate form thereof, wherein all of the variables are as defined herein. These compounds are inhibitors of platelet aggregation and thus can be used as medicaments for treating or preventing thromboembolic disorders.
Pd-mediated C-C and C-S bond formation on solid support: A scope and limitations study
Wendeborn, Sebastian,Berteina, Sabine,Brill, Wolfgang K.-D.,De Mesmaeker, Alain
, p. 671 - 675 (2007/10/03)
The scope and limitations of Pd(0)-mediated coupling reactions between aromatic halides linked to a polystyrene resin and boronic acid derivatives (Suzuki coupling), aromatic and vinylic tin compounds (Stille coupling), as well as thiols are reported. For all reactions, conditions were optimized and evaluated with various reagents. In many cases, upon cleavage from the solid support, products were obtained in excellent yields. In most cases, the optimized reaction conditions are superior to those previously reported in the literature.
